Proportion Of Total Fat Research Articles

Fresh Beef and Lamb Consumption in Relation to Nutrient Intakes and Markers of Nutrition and Health Status among the Population Aged 5-90 Years in Ireland.

The dietary role of meat is under scrutiny for health and environmental reasons, yet a growing body of evidence proposes that advice to limit red meat consumption is unnecessarily restrictive. The aim of this study was to investigate the role of 'fresh beef and lamb' in the diet of the population (5-90 years) in Ireland and its association with markers of nutrition and health status. Analyses are based on data from three nationally representative dietary surveys in the Republic of Ireland. Dietary intake data were estimated using food records, and nutrient intakes were estimated based on UK and Irish food composition tables. Biochemical samples were collected and analysed using standard procedures. 'Fresh beef and lamb' (defined as beef/lamb that had not undergone any preserving process other than chilling/freezing/quick-freezing) was consumed by 68-84% of the population and intakes ranged from 19 to 43 g/d across age groups. It made important contributions to intakes of protein, monounsaturated fat, vitamins D, B12, niacin, iron and zinc while also contributing relatively small proportions of total fat, saturated fat and salt. Higher consumption of 'fresh beef and lamb' was associated with higher intakes of protein, niacin, vitamins B6, B12, zinc and potassium (but also total fat) and lower intakes of carbohydrate and total sugars (but also dietary fibre). In adults, older adults and WCBA, higher consumption of 'fresh beef and lamb' was not associated with increased risk factors of cardio-metabolic diseases nor was it associated with better or poorer nutritional status for vitamins D, B12 or iron. This study adds to the evidence base on the contribution of 'fresh beef and lamb' in the diet and may be useful to policymakers updating guidance for healthy diets from sustainable food systems.

Trans-fat labelling information on prepackaged foods and beverages sold in Hong Kong in 2019.

To examine the labelling status of trans-fat of pre-packaged foods sold in Hong Kong. Data from 19 027 items in the 2019 FoodSwitch Hong Kong database were used. Ingredient lists were screened to identify specific (e.g. partially hydrogenated vegetable oil, PHVO) and non-specific trans-fat ingredient indicators (e.g. hydrogenated oil). Trans-fat content was obtained from the on-pack nutrition labels, which was converted into proportion of total fat (%total fat). Descriptive statistics were calculated for trans-fat content and the number of specific, non-specific and total trans-fat ingredients indicators found on the ingredients lists. Comparisons were made between regions using one-way ANOVA and χ2 for continuous and categorical variables, respectively. Cross-sectional audit. Not applicable. A total of 729 items (3·8 % of all products) reported to contain industrially produced trans-fat, with a median of 0·4 g/100 g or 100 ml (interquartile range (IQR): 0·1-0·6) and 1·2 %totalfat (IQR: 0·6-2·9). 'Bread and bakery products' had the highest proportion of items with industrially produced trans-fat (18·9 %). 'Non-alcoholic beverages' had the highest proportion of products of 'false negatives' labelling (e.g. labelled as 0 trans-fat but contains PHVO; 59·3 %). The majority of products with trans-fat indicator originated from Asia (70 %). According to the labelling ∼4 % of pre-packaged food and beverages sold in Hong Kong in 2019 contained industrially produced trans-fat, and a third of these had trans-fat >2 %total fat. The ambiguous trans-fat labelling in Hong Kong may not effectively assist consumers in identifying products free from industrially produced trans-fat.

Examining Nutrient Intakes of Canadian Adults With Diabetes Using the Diabetes Canada Clinical Practice Guidelines Nutrient Profile Model

ObjectivesThe Diabetes Canada Clinical Practice (DCCP) Guidelines provide dietary recommendations for Canadians at risk and with diabetes to help lower risk and for self-management of diabetes. The DCCP nutrient profile model was developed to classify foods based on their adherence to the DCCP Guidelines. The objective of the study was to examine the nutrient intakes of Canadian adults with diabetes using the DCCP nutrient profile model. MethodsUsing one-day 24-hour dietary recall from the 2015 Canadian Community Health Survey-Nutrition, nutrient intakes of Canadian adults with self-reported status of diabetes were examined. Foods were categorized by the DCCP nutrient profile model as “least”, “partially”, or “most” aligned with the DCCP Guidelines. Mean nutrient intakes were estimated and standard errors were calculated using balanced repeated replication with 500 bootstrap weighted replicates. Mean estimates were adjusted for age, sex, energy intake, and misreporting status using least squares regression. ResultsCanadian adults with diabetes (n = 1,249) consumed 14% (341 kcal/d [95% CI: 254,428]), 54% (1,291 kcal/d [1112,1470]), and 31% (682 kcal/d [613,751]) of total calories from foods that are “least”, “partially”, and “most” aligned with the DCCP Guidelines, respectively. The proportion of total fat, carbohydrate, and protein intakes from foods that are “least”, “partially”, and “most” aligned with the DCCP Guidelines were similar to their caloric contribution. However, 49% of added sugar intakes (24.1 g/d [20.8, 27.4]) were consumed from foods “least” aligned with the DCCP Guidelines. Over 60% sodium (1,746 mg/d [1,578, 1,915]) and saturated fat (18.7 g/d [16.1, 21.4]) intakes were consumed from foods “partially” aligned with the DCCP Guidelines. More than half of the fiber intakes (11.2 g/d [10.2, 12.2]) were consumed from foods “most” aligned with the DCCP Guidelines. ConclusionsDespite the low caloric contribution of foods “least” aligned with the DCCP Guidelines, these foods contributed to disproportionate intakes of added sugar and saturated fat among Canadian adults with diabetes. The use of the DCCP nutrient profile model can help Canadians with diabetes improve their nutrient intakes. Funding SourcesCIHR Project Grant; Sanofi-Pasteur International Collaboration; CIHR-Doctoral Award (JJL).

Imbalance of Long-Chain Omega 3 Polyunsaturated Fatty Acids and Sterols in the Diet of Healthy Young People

ObjectivesThe present research was aimed at studying the content of lipid components with high biological activity in the diet of healthy young people, which regulate the risk of developing cardiovascular pathology. The purpose of this series of studies was the prevention of actual metabolic disorders as a result of changing the stereotypes choice food sources of the essential lipid components. MethodsThis study analyzed the diets of a representative group of students of the I.M.Sechenov First Moscow State Medical University: 77 men and 237 women aged 17–27. The 24 hour recall method was used three times and nutrient content was further assessed using a standard database. ResultsThe average energy value was 1788 ± 428.6 kcal for men and 1618 ± 605 kcal for women. The percentage of energy from total fat was higher than the recommended one (more than 30% of fat calories from the total energy value of the diet): by 75% (84.2 ± 23.3 g) and 95.3% (70.5 ± 23.2 g) in men and women respectively. Of greatest interest was the analysis of the amount and ratio of essential polyunsaturated fatty acids (PUFAs) of the omega 6 and omega 3 groups, as well as sterols. While the ratio of linoleic acid/α-linolenic acid was the same (9/1) in both men and women, a significant difference was shown in their amount: linoleic acid/α-linolenic acid in men was estimated at 12 g/1.4 g and 9.7 g/1.2 g in women. The amount of essential fatty acids was 6.1% and 0.7% of the total calorie content of the diet. Consumption of long-chain omega 3 PUFAs was extremely low: 80.5 ± 53.5 mg and 209.4 ± 139.5 mg of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), respectively, in the men group; 79.2 ± 68.05 mg and 229.7 ± 180.2 mg in the women group. The intake of cholesterol and plant sterols, as well as their ratio, turned out to be suboptimal both in men 1.40/1 (455 ± 204.8 mg/357 ± 163.9 mg) and in women 1.38/1 (372.3 ± 168.3 mg/295.8 ± 150.8 mg). ConclusionsThe results showed a significant imbalance of PUFAs and sterols in the students’ diet. To optimize the fatty acid composition of the diet, on the one hand, it is necessary to reduce the proportion of total fat, and also include sources of long-chain omega 3 PUFAs (EPA and DHA) in the diet 2–3 times a week, primarily through oily (but not salty) marine fish, on the other hand, consume low-fat foods containing plant sterols such as cereals products and vegetables daily. Funding SourcesNo funding.

Negative body size-dependent resource allocation underlies conspicuous sexual ornaments in a territorial damselfly.

Sexual ornaments, signalling individual quality to choosy females or rival males, often show steeper body size scaling compared with non-sexually selected traits. Theory posits such steeper body size scaling is the result of differential resource allocation, reflecting trade-offs between different components of fitness. Yet, the process of resource allocation towards body size-dependent sexual ornaments has been rarely understood empirically. Using the Neotropical territorial damselfly Megaloprepus caerulatus, whose males and females carry wax-based, sex-specific white wing bands and white wing tips respectively, we investigated nutrition sensitivity and body size scaling of both traits by manipulating larval food availability and directly quantified both the fat allocated to wing ornaments and the fat reserve from which allocations are made. Both colour traits exhibited sensitivity to food availability during larval development and steeper body size scaling compared with control traits. Although the absolute amount of fat invested in developing the colour ornaments increased with body size, the proportion of total fat allocated to the ornaments decreased with body size, making exaggerated ornaments less affordable for smaller individuals. Our data demonstrate that measuring the proportion of resource pool from which an individual's ornaments are derived (i.e. its affordability) is essential for understanding the maintenance of honesty of sexual signals.

Effect of slaughter weight on slaughtering and carcass characteristics in lambs from thin-tailed Kivircik and fat-tailed Kangal Akkaraman breeds

The determination of the maximum slaughter weight which will not cause a decrease in carcass quality is a very important issue to ensure optimal utilization of the meat production potential of lambs. To determine that, the slaughtering and carcass characteristics of thin-tailed Kivircik (n = 60) and fat-tailed Kangal Akkaraman (n = 59) lambs slaughtered at 20, 28, 36, 44, and 52 kg were investigated in the current study. The results of the present study indicate that the carcass quality was significantly affected by the slaughter weight (SW) in Kivircik and Kangal Akkaraman lambs. In Kivircik breed, the differences between SW-44 and SW-52 groups were not significant in terms of percentages of the valuable carcass parts (anterior rib and loin rib percentages), muscle, intermuscular fat, subcutaneous fat, and total fat proportions and muscle / fat ratio. On the other hand, when the allometric development of adipose tissue is considered, positive allometry was determined in the 52 kg SW group. Therefore, when the balance between the maximization of meat production and the production of lean meat suitable for the consumer's preferences is targeted, it is suggested that the Kivircik lambs would be fattened up to 44 kg. In Kangal Akkaraman lambs, the dressing percentage was similar in 36, 44 and 52 kg groups and the differences between SW-44 and SW-52 groups were not significant in terms of carcass length, chest width, hind limb length and chest roundness index. In addition, as the slaughter weight increased, the tail percentage significantly increased in Kangal Akkkaraman lambs. Also, while hind limb percentages of SW-44 and SW-52 groups were lower than the other groups, the SW-52 group had a higher total fat proportion and significantly lower muscle / fat ratio. When the allometric growth is considered, meat development slowed down after 36 kg in Kangal Akkaraman lambs, and the development of subcutaneous and intermuscular fats continued rapidly. Therefore, if we focus on producing as much saleable meat as possible from Kangal Akkaraman lambs without allowing excessive fat and tail accumulation, a slaughter weight of 44 kg can be recommended.

1185-P: Erythrocyte Eicosapentaenoic and Docosahexaenoic Acid Are Reliable Biomarkers of Dietary Intake in Women of African Ancestry: The Federal Women's Study

To formulate precision nutrition prescriptions, it is essential to understand the relationship between dietary assessment, ethnicity and cardiometabolic disease. Erythrocyte (RBC) fatty acid (FA) profiles reflect long-term dietary fat intake but have not been rigorously compared with short-term FA intake in women of African ancestry who have paradoxically low triglycerides with high fat intake. We compared the type of dietary fat consumed (proportion of total fat) using food records with fasting RBC FA (mol%) determined by gas chromatography in 130 female, healthy, federal employees without diabetes (12% African Immigrants (AI), 47% African Americans (AA), 41% White Americans (WA)); mean age 43+10 y and BMI 30 + 6 kg/m2). Diet quality and home prepared meals were similar across ethnicities. AI reported the lowest energy intake. Regardless of absolute energy intake, macronutrient distributions were similar. Fat intake differed by ethnicity; WA had the highest saturated FA (SFA) and lowest eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and omega-3 index (EPA + DHA), while AI and AA had similar SFA, EPA and DHA intake. AI women had the highest RBC DHA and omega-3 index. Associations between FA intake and RBC profiles were significant for DHA (r=0.3, p<0.01), EPA (r=0.2, p<0.05) and the omega-3 index (r=0.2, p<0.01). Overall, RBC EPA and DHA were reliable biomarkers of dietary intake in women of African ancestry, consistent with data in predominantly white populations. These findings support the combined use of food records and RBC profiles for comprehensive dietary assessments. As RBC SFA and monounsaturated FA reflect both endogenous and exogenous sources, the discrepancies between intake and RBC profiles could reflect ethnic variations in nutrient metabolism. To enable precision nutrition prescriptions, exploration of population-specific biomarkers in concert with dietary assessment is needed. Disclosure A. B. Courville: None. S. T. Chung: None. S. Yang: None. L. Mabundo: None. C. K. Cravalho: None. S. Matta: None. A. Villalobos-perez: None. J. M. Dawson: None. A. H. Lichtenstein: None. A. E. Sumner: None. Funding National Institute of Diabetes and Digestive and Kidney Diseases

Impact of Semaglutide on Body Composition in Adults With Overweight or Obesity: Exploratory Analysis of the STEP 1 Study

Background: Central obesity is associated with increased risk of cardiometabolic disease. Weight loss reduces lean muscle mass, potentially impacting resting energy expenditure and/or physical functioning. This analysis of the STEP 1 trial evaluated the impact of subcutaneous (s.c.) semaglutide, a glucagon-like peptide-1 analogue, on body composition in adults with overweight/obesity using dual energy X-ray absorptiometry (DEXA). Methods: In STEP 1, 1961 adults aged ≥18 years with body mass index (BMI) ≥27 kg/m2 with ≥1 weight-related comorbidity or BMI ≥30 kg/m2, without diabetes, were randomized to s.c. semaglutide 2.4 mg once-weekly or matched placebo (2:1) for 68 weeks, plus lifestyle intervention. Participants with BMI ≤40 kg/m2 from 9 sites were eligible for the substudy. Total fat mass, total lean body mass and regional visceral fat mass were measured using DEXA at screening and week 68; visceral fat mass was calculated in the L4 region (both males/females), android region (males), or gynoid region (females), depending on site scanner methodology. Proportions of total fat and lean body mass are shown relative to total body mass; proportion of visceral fat mass is expressed relative to region assessed. Results: This analysis included 140 participants (semaglutide n=95; placebo n=45) (mean weight 98.4 kg, BMI 34.8 kg/m2; 76% female). Baseline body composition was similar in those receiving semaglutide and placebo (total fat mass proportion: 43.4% vs 44.6%; regional visceral fat mass proportion: 33.8% vs 36.3%; total lean body mass proportion: 53.9% vs 52.7%; respectively). Percentage change in body weight from baseline to week 68 was -15.0% with semaglutide vs -3.6% with placebo. This resulted in reductions from baseline with semaglutide in total fat mass (-19.3%) and regional visceral fat mass (-27.4%), leading to 3.5%-point and 2.0%-point reductions in the proportions of total fat mass and visceral fat mass, respectively. Total lean body mass decreased from baseline (-9.7%); however, the proportion relative to total body mass increased by 3.0%-points. An increasing improvement in lean body mass:fat mass ratio was seen with semaglutide with increasing weight loss from baseline to week 68 (continuous data). Overall, the ratio increased from baseline (1.34 [95% CI: 1.22, 1.47]) to week 68 by 0.23 [0.14, 0.32], with greater improvement in those with ≥15% weight loss (n=44; 0.41 [0.28, 0.53]) vs <15% weight loss (n=39; 0.03 [-0.05, 0.12]) (observed, dichotomized data; no imputation for missing data). There were no major changes in body composition with placebo from baseline to week 68. Conclusion: In adults with overweight/obesity, semaglutide 2.4 mg was associated with reduced total fat mass and regional visceral fat mass, and an increased proportion of lean body mass. Greater weight loss was associated with greater improvement in body composition (lean body mass:fat mass ratio).

The role of unprocessed beef and lamb in the diets of Irish children and teenagers (5–17 years)

AbstractIntroductionMeat is a nutrient-dense food that plays a central role in the diets of many children globally, contributing significantly to intakes of energy, protein and a number of essential micronutrients. However, nutritive quality is variable across meat types and cuts, and dietary guidelines across Europe typically encourage the consumption of lean meats whilst limiting the consumption of processed meats. The current work aimed to estimate intakes of unprocessed beef and lamb and their contribution to nutrient intakes in Irish children and teenagers.MethodsAnalyses were based on data from the Irish National Children's Food Survey (NCFS) (2003–2004; 5–12 years; n 594) and National Teens’ Food Survey (NTFS) (2005–2006; 13–17 years; n 441) (www.iuna.net). Both surveys used a 7-day weighed (NCFS) or semi-weighed (NTFS) food record to collect dietary intake data from nationally representative samples of Irish children. Dietary intake data were converted to nutrient data using WISP©, based on UK and Irish food composition tables. Unprocessed beef and lamb was defined as beef or lamb that had not undergone any preserving process other than chilling, freezing or salting, and included beef or lamb dishes that were wrapped in a controlled atmosphere. Meat intakes from composite dishes (e.g. beef lasagne) were estimated following disaggregation of the non-meat components. Statistical analyses were carried out using SPSS© v23.0.ResultsUnprocessed beef was consumed by 79% of children and 83% of teenagers, while unprocessed lamb was consumed by 19% of children and 20% of teenagers. Mean daily intakes of unprocessed beef were 21 g and 34 g in children and teenagers (consumers only), while mean daily intakes of unprocessed lamb were 14 g and 23 g. Unprocessed beef and lamb contributed 5–6% to mean daily energy intakes and contributed the following proportions to daily nutrient intakes in children and teenagers, respectively: protein (11%, 15%), total fat (7%, 9%), saturated fat (7%, 10%), monounsaturated fat (9%, 11%), iron (7%, 10%), zinc (18%, 23%), vitamin A (7%, 7%), vitamin D (12%, 16%), total niacin (9%, 13%), vitamin B6 (6%, 9%), vitamin B12 (15%, 22%), sodium (6%, 7%).DiscussionUnprocessed beef and lamb are valuable sources of nutrients for Irish children and teenagers. Relative to their energy contribution, they contribute higher proportions of a number of important nutrients, such as protein, zinc, vitamin D, vitamin B12 and total niacin, while contributing relatively small proportions of total fat, saturated fat and sodium. This research was funded by Meat Technology Ireland.

The role of breakfast in the diets of Irish adults (18–90y)

AbstractBreakfast is often referred to as ‘the most important meal of the day’ and is consumed after the longest postprandial fast (an overnight fast). Breakfast consumption has been positively linked to many health benefits and has been shown in many studies to be associated with a better diet quality. The aim of this study was to characterise breakfast in Irish adults and to investigate the contribution of breakfast to overall daily nutrient intake.Analyses were based on the National Adult Nutrition Survey (NANS) (2008–2010) (www.iuna.net). A 4 day semi-weighed food record was used to collect food and beverage intake data from a nationally representative sample of 1500 adults in the Republic of Ireland. Nutrient intakes were estimated using WISP© based on UK and Irish food composition data. Breakfast was subjectively defined by the participant and reported in the food diary. In line with recommendations on breakfast studies, this study confined analyses to nutrients derived from breakfast foods and not nutritional supplements. Usual intakes of energy and selected nutrients (from breakfast foods only and total diet (including nutritional supplements)) were calculated via the NCI-method using SAS© Enterprise Guide.Breakfast was consumed on at least one recording day by 99% of participants with an uptake of 93% of potential breakfast occasions. The mean (SD) energy intake at breakfast was 365 (162) kcal, contributing on average 19% to overall daily energy intake. Energy intake from breakfast comprised of 56% carbohydrate, 14% fat and 29% protein. The most frequently consumed foods at breakfast included breakfast cereals, white/brown/wholemeal breads and rolls, butters and fat spreads, jams and marmalades, fruits, eggs, yogurts and some meats. The most frequently consumed beverages included teas, coffees, ‘fruit juices &amp; smoothies’, waters and milk (in teas/coffees, with cereals and as a beverage). The contribution of breakfast to total daily nutrient intakes was 25% for carbohydrate, 16% for fat and 16% for protein. Breakfast also contributed to total daily intakes of dietary fibre (22%), total sugars (28%), saturated fat (18%), B-vitamins (20–32%), vitamins C (23%), D (24%), E (19%) calcium (28%), iron (26%) and sodium (18%).Breakfast was widely consumed among Irish adults and was typically a nutrient dense meal which contributed significantly to total dietary intakes of a number of important macro- and micro- nutrients but also contributed to total sugars and relatively small proportions of total fat, saturated fat, and sodium.

BMI and WHR Are Reflected in Female Facial Shape and Texture: A Geometric Morphometric Image Analysis.

Facial markers of body composition are frequently studied in evolutionary psychology and are important in computational and forensic face recognition. We assessed the association of body mass index (BMI) and waist-to-hip ratio (WHR) with facial shape and texture (color pattern) in a sample of young Middle European women by a combination of geometric morphometrics and image analysis. Faces of women with high BMI had a wider and rounder facial outline relative to the size of the eyes and lips, and relatively lower eyebrows. Furthermore, women with high BMI had a brighter and more reddish skin color than women with lower BMI. The same facial features were associated with WHR, even though BMI and WHR were only moderately correlated. Yet BMI was better predictable than WHR from facial attributes. After leave-one-out cross-validation, we were able to predict 25% of variation in BMI and 10% of variation in WHR by facial shape. Facial texture predicted only about 3–10% of variation in BMI and WHR. This indicates that facial shape primarily reflects total fat proportion, rather than the distribution of fat within the body. The association of reddish facial texture in high-BMI women may be mediated by increased blood pressure and superficial blood flow as well as diet. Our study elucidates how geometric morphometric image analysis serves to quantify the effect of biological factors such as BMI and WHR to facial shape and color, which in turn contributes to social perception.

Effects of dietary supplementation of selenium and iodine on growth performance, carcass characteristics and histology of thyroid gland in goats

This study assessed the effects of dietary selenium (Se), iodine (I) and a combination of both on growth performance, thyroid gland activity, carcass characteristics and the concentration of iodine and selenium in Longissimus lumborum (LL) muscle in goats. Twenty-four bucks were randomly assigned to four dietary treatments: control (CON), basal diet without supplementation, basal diet + 0.6 mg Se/kg dry matter (DM) (SS), 0.6 mg I/kg DM (IP), or combination of 0.6 mg/kg DM Se and 0.6 mg/kg DM I (SSIP) and fed for 100 days. Animals fed diet SSIP exhibited higher (P < 0.05) body weight and better feed conversion ratio (FCR) than those fed other diets. Dressing percentage of goats fed the supplemented diets was higher (P < 0.05) than that of the control. Carcasses from the IP group had higher (P < 0.05) total fat proportion than the SSIP group. The levels of both elements were significantly elevated (P < 0.05) in LL muscle in supplemented goats. Thyroid follicular epithelial cells of IP and SSIP animals were significantly higher than those of CON and SS groups. The study demonstrated that the combined Se and I dietary supplementation improves growth performance, carcass dressing percentage and increases the retention of Se and I in goat meat.

Nutritional composition and antioxidant capacity in edible flowers: characterisation of phenolic compounds by HPLC-DAD-ESI/MSn.

Edible flowers are commonly used in human nutrition and their consumption has increased in recent years. The aim of this study was to ascertain the nutritional composition and the content and profile of phenolic compounds of three edible flowers, monks cress (Tropaeolum majus), marigold (Tagetes erecta) and paracress (Spilanthes oleracea), and to determine the relationship between the presence of phenolic compounds and the antioxidant capacity. Proximate composition, total dietary fibre (TDF) and minerals were analysed according to official methods: total phenolic compounds (TPC) were determined with Folin-Ciocalteu’s reagent, whereas antioxidant capacity was evaluated using Trolox Equivalent Antioxidant Capacity (TEAC) and Oxygen Radical Absorbance Capacity (ORAC) assays. In addition, phenolic compounds were characterised by HPLC-DAD-MSn. In relation to the nutritional value, the edible flowers had a composition similar to that of other plant foods, with a high water and TDF content, low protein content and very low proportion of total fat—showing significant differences among samples. The levels of TPC compounds and the antioxidant capacity were significantly higher in T. erecta, followed by S. oleracea and T. majus. Thirty-nine different phenolic compounds were tentatively identified, with flavonols being the major compounds detected in all samples, followed by anthocyanins and hydroxycynnamic acid derivatives. In T. erecta small proportions of gallotannin and ellagic acid were also identified.

Analysis of the characteristics of fat, oil, and grease (FOG) deposits in sewerage systems in the case of Korea

Fat, oil, and grease (FOG) is the most common factor in sewer pipe blockage, and is the source of inundation and sanitary sewer overflows (SSOs). In the US and the UK, many inundation or SSO events occur each year, and a great deal of cost has been incurred to improve these situations. However in Korea, the database for sewer maintenance is still insufficient. In this study, FOG deposits collected in Korea were analyzed, and the characteristics of the FOG deposits were compared with the characteristics of the FOG deposits from places with different food cultures investigated in some of the major previous studies. Six FOG samples were collected from sewer mains and service laterals in the sewerage systems. The characteristics of the six samples were examined using FT-IR, Ca ion, and fatty acid composition analyses. The results of the FT-IR analysis indicated that the spectra defined in the previous studies of FOG were observed, and thus similarity to the samples of the previous studies was found. The proportions of the Ca ions included in the FOG of the six samples were 0.02–0.59%, and they are thought to be related with the maintenance of the discharging sources where the samples were collected. The results of the fatty acid composition analysis indicated that the proportions of total fat in the FOG ranged from 6 to 33%, and the proportion of total fat in the FOG decreased as the proportion of saturated fatty acid in the total fat increased. In some of the major studies performed previously in the US and the UK, saturated fatty acids accounted for a high proportion of the fatty acid compositions. However, the six FOG deposits analyzed in this study showed different compositions. It is thought that the fatty acid composition of FOG could vary with differences in the food culture, and the characteristics of FOG deposits could also vary. The data obtained from this study and future studies would be useful for the effective management of FOG deposits that are formed based on the food culture.

Dietary fat quality and risk of sudden cardiac death in women

Dietary n-3 PUFAs are inversely associated with risk of sudden cardiac death (SCD); however, little is known about other fats and SCD. Furthermore, concerns have been raised that high n-6 PUFA intake may attenuate the benefits of n-3 PUFAs. We examined associations and selected interactions between dietary fatty acids, expressed as a proportion of total fat and SCD. We conducted a prospective cohort study among 91,981 women aged 34-59 y from the Nurses' Health Study in 1980. Over 30 y, we documented 385 SCDs. In multivariable models, women in the highest compared with the lowest quintile of SFA intake had an RR of SCD of 1.44 (95% CI: 1.04, 1.98). Conversely, women in the highest compared with the lowest quintile of PUFA intake had an RR of SCD of 0.57 (95% CI: 0.41, 0.78). Intakes of n-6 and n-3 PUFAs were both significantly associated with a lower risk of SCD, and n-6 PUFAs did not modify the association between n-3 PUFAs and SCD. MUFAs and trans fats were not associated with SCD risk. After further adjustment for coronary heart disease (CHD) and CHD risk factors potentially in the causal pathway, the association between PUFAs and SCD remained significant, whereas the association for SFAs was no longer significant. Intake of PUFAs as a proportion of fat was inversely associated with SCD risk, independent of traditional CHD risk factors. These results support dietary guidelines to improve dietary fat quality by replacing intake of SFAs with n-6 and n-3 PUFAs.

Visceral and Subcutaneous Fat in Patients Treated With Olanzapine

We hypothesized that olanzapine may contribute to visceral adiposity, a core symptom of metabolic syndrome. Using computed tomography, we examined the effect of olanzapine on visceral and subcutaneous fat distribution, body mass index, fasting glucose, and lipids in an unselected population of 14 schizophrenic patients. We found a 6-week olanzapine treatment to be related to increased body mass index and proportion of total fat at the level of the fourth vertebral body. On the basis of these findings, we conclude that weight gain after a 6-week olanzapine treatment is partly attributable to increased visceral fat and may thus contribute to metabolic syndrome.

Grãos de girassol ou gordura protegida em dietas com alto concentrado e ganho compensatório de cordeiros em confinamento

Avaliaram-se os efeitos de três dietas e dois regimes alimentares sobre o desempenho e as características de carcaça de cordeiros em confinamento. Trinta e seis cordeiros com peso inicial de 18,7 ± 2,4 kg foram distribuídos em delineamento inteiramente casualizado em esquema fatorial 3 × 2 e receberam dietas sem inclusão de lipídio e com inclusão de grãos de girassol ou gordura protegida. Seis cordeiros de cada dieta foram submetidos a restrição alimentar e posterior ganho compensatório, enquanto a outra metade foi alimentada à vontade por todo o período de confinamento. Foram avaliados o consumo de matéria seca, o ganho de peso e a conversão alimentar, os níveis de ureia e colesterol sanguíneos, as características de carcaça e os subprodutos do abate. No período de realimentação, o consumo dos cordeiros que passaram por restrição alimentar não diferiu do consumo dos animais alimentados sempre à vontade. Também não foi afetado pela dieta, no entanto, ao final desse período, o consumo acumulado foi 11,8% menor que nos animais submetidos previamente à restrição. O consumo até o peso de abate não foi alterado pelo regime alimentar. No período de restrição, o nível de colesterol sanguíneo nos cordeiros em restrição alimentar foi 24% superior ao daqueles sem restrição, mas, durante o período de realimentação, não houve diferença. A composição lipídica da dieta aumentou o colesterol sanguíneo em ambos os períodos, de restrição e de realimentação, e reduziu a ureia durante o período de realimentação. O desempenho avaliado ao peso de abate foi prejudicado pela restrição alimentar. Não houve efeito de regime alimentar ou da dieta sobre os parâmetros de carcaça. Fontes de lipídios elevaram a proporção de gorduras totais e reduziram o conteúdo do trato gastrintestinal. O regime alimentar com restrição prejudica o ganho e a conversão alimentar de cordeiros até o abate.

Thematic review series: Patient-Oriented Research. Nutritional determinants of insulin resistance

Interpreting the literature relating to the nutritional determinants of insulin resistance is complicated by the wide range of methods used to determine insulin sensitivity. Excess adiposity is unquestionably the most important determinant of insulin resistance, although the effect may be tempered by a relatively high proportion of lean body mass. Weight loss is associated with improved insulin sensitivity. Thus, diet-related factors that promote excessive energy intake may be regarded as promoters of insulin resistance. In the context of energy balance, diets characterized by high intakes of saturated fat and low intakes of dietary fiber are associated with reduced insulin sensitivity. Total fat intakes greater than the usually consumed range appear to promote insulin resistance, although the relative proportions of total fat and carbohydrate within the usual range appear unimportant. Monounsaturated fatty acids with a cis configuration and fiber-rich carbohydrate foods appear to be appropriate substitutes for saturated fatty acids and rapidly digested glycemic carbohydrates. In animal studies, n-3 unsaturated fatty acids have been shown to enhance insulin sensitivity and fructose and sucrose to increase insulin resistance. However, human data are limited. Large prospective studies currently being conducted should confirm the most appropriate macronutrient composition of diets for preventing and treating insulin resistance as well as establishing whether a range of candidate genes explains the variation in response to dietary change.

Effect of age at slaughter on carcass characteristics and carcass composition in lambs of mountain Greek breeds

Forty male lambs of the mountain Greek breed were used to evaluate the effect of age at slaughter on carcass characteristics and composition. The slaughter of lambs was carried out at the age of 30, 45, 60, 75 and 90 days. The slaughter procedure, carcass dissection and carcass composition were realized according to the standard method of CIHEAM-AGRIMED programme. The results of this work showed that the lambs of different age groups did not differ in dressing percentage significantly. The proportion of muscles showed a tendency of increase with the increasing slaughter age but the differences were not significant. The proportion of total fat in carcass increased with the increasing slaughter age from 20.84 to 23.59% for the age group of 30 and 90 days, respectively (P &amp;lt; 0.05). On the contrary, as the age at slaughter increased, the proportion of bones decreased (P &amp;lt; 0.05). Subcutaneous, intermuscular, perinephric and pelvic fats increased with the slaughter age, but only the subcutaneous fat was influenced significantly (P &amp;lt; 0.05). Among the different commercial cuts proportions of long leg, first 5 ribs and shoulder decreased, while those of last 8 ribs-loin and breast-flank increased (P &amp;lt; 0.05). The overall results suggest that the slaughter age of lambs of the mountain Greek breed should be increased from the present ~45 days to more advanced age of 75 or 90 days in order to improve the farmers&amp;rsquo; profits without serious negative effects on the quality of carcasses or meat of lambs. &amp;nbsp; &amp;nbsp;

Body weights, carcass characteristics, fat content, and their relationships in ganders of the Selected Chinese and Synthetic strains, and Embden-sired strain crosses

In 1986, 247 ganders of the Selected Chinese and Selected Synthetic strains, and Large Embden and Small Embden- sired strain crosses at the Greenbelt farm of the Centre for Food and Animal Research in Ottawa, Canada, were evaluated. The Chinese and Synthetic (developed from the Pilgrim, Chinese and Hungarian) strains had been selected for four generations to increase egg production over a 24-wk laying period and body weight at 16 wk of age, and simultaneously decrease total fat content. Two Embden strains, Large and Small, denoting contrasting body sizes, had been imported from the United States of America for potential use in crossbreeding as terminal sire strains. Strains and strain crosses were ranked from high to low, for body weights at 9 and 16 wk of age, liveweight at slaughter and eviscerated carcass weight. Large Embden × Selected Chinese were largest followed by Small Embden × Selected Synthetic and Small Embden × Selected Chinese strain crosses, in turn followed by the Selected Chinese and Selected Synthetic strains. Small Embden-sired crosses were not significantly different except for body weight at 9 wk of age and eviscerated carcass weight. The Large Embden × Selected Chinese strain cross had a dressing percent of 63, significantly higher than 60–61% for the remaining strains or strain crosses. In general, the ranking of strains and strain crosses for liver weight was similar to rankings for body weights, except that the Small Embden-sired crosses were not significantly different from the Selected Chinese strain, and the Small and Large Embden-sired Selected Chinese crosses had similar liver weight. The Selected Synthetic strain had a significantly smaller neck than that of the other strains and strain crosses; Small Embden-sired crosses were not significantly different. Large Embden × Selected Chinese and Small Embden × Selected Synthetic strain crosses and the Selected Chinese strain had similar neck weight. When fat was expressed as a percentage of carcass weight, the strains and strain crosses had similar proportion of abdominal fat. On the other hand the Large Embden × Selected Chinese strain cross had significantly more intestinal fat (4.83%) than any of the strains and strain crosses (2.97 to 3.73%) and a similar proportion of total fat (10.87%) to the Small Embden × Selected Chinese strain cross (8.79%) but significantly more than the remaining strains and strain crosses (7.53 to 8.20%). The correlations of body weights at 9 and 16 wk of age with eviscerated carcass weight (0.65 and 0.90), abdominal fat weight (0.32 and 0.59), intestinal fat weight (0.27 and 0.55) and total fat weight (0.23 and 0.47) were deemed potentially useful. The correlations between percentage of fat parameters and body weights were low (0.20 a n d 0.37) or negligible. The inherent potential in the large-bodied Embden strain for growth can complement the small-bodied Selected Chinese strain that excels in egg production, fertility and hatchability to produce a strain cross with considerable promise for commercial production of goose meat. Key words: Chinese strain, Synthetic strain, Embden strain, body weights, abdominal and intestinal fat