Adequate Dairy Research Articles

A review of dairy food intake for improving health for black women in the US during pregnancy, fetal development, and lactation

Pregnancy and lactation are special life stages that require regular nutritional and medical attention to help protect the health of the mother and promote the growth and development of the offspring. Despite an increased focus on maternal and fetal health over the last several decades, the rates of pregnancy-related morbidity and mortality are increasing in the United States (US). On average, Black women who are pregnant or lactating face greater health disparities and birth complications than other racial/ethnic groups in the US. The issues contributing to these disparities are multi-faceted and include sociocultural, economic, medical, and dietary factors. For example, Black women face greater rates of food insecurity, worse access to healthcare, and lower nutrient status when compared to White women. A growing body of research suggests that consuming a healthier dietary pattern is one of the most potent modifiable risk factors associated with improved fertility and reducing pregnancy-related complications. Recent publications have also shed light on the role of dairy foods in improving diet quality and nutrient status among Black women and for impacting maternal and fetal health outcomes, such as preeclampsia, spontaneous abortion, preterm birth, and fetal growth. To support healthy pregnancy and lactation, the current national dietary guidelines recommend the consumption of 3 servings of dairy foods per day. However, the vast majority of Black women in the US are falling short of these recommendations and are not meeting nutrient requirements for calcium and vitamin D. Therefore, strategies that target misconceptions surrounding lactose intolerance and focus on the health value of adequate dairy intake among Black women of child-bearing age may benefit both prenatal and postpartum health. This review presents the current evidence on health disparities faced by pregnant and lactating Black women in the US, and the role of dairy foods in supporting healthy pregnancy, fetal development, and lactation outcomes in this population.

Predictive model for vitamin C levels in hyperinsulinemic individuals based on age, sex, waist circumference, low-density lipoprotein, and immune-associated serum proteins

Vitamin C (ascorbic acid) is an important water-soluble antioxidant associated with decreased oxidative stress in type 2 diabetes (T2D) patients. A previous targeted plasma proteomic study has indicated that ascorbic acid is associated with markers of the immune system in healthy subjects. However, the association between the levels of ascorbic acid and blood biomarkers in subjects at risk of developing T2D is still unknown. Serum ascorbic acid was measured by ultra-performance liquid chromatography and serum proteins were quantified by untargeted liquid-chromatography mass spectrometry in 25 hyperinsulinemia subjects that were randomly assigned a high dairy intake diet or an adequate dairy intake diet for 6 weeks, then crossed-over after a 6-week washout period. Spearman correlation followed by gene ontology analyses were performed to identify biological pathways associated with ascorbic acid. Finally, machine learning analysis was performed to obtain a specific serum protein signature that could predict ascorbic acid levels. After adjustments for waist circumference, LDL, HDL, fasting insulin, fasting blood glucose, age, gender, and dairy intake; serum ascorbic acid correlated positively with different aspects of the immune system. Machine learning analysis indicated that a signature composed of 21 features that included 17 proteins (mainly from the immune system), age, sex, waist circumference, and LDL could predict serum ascorbic acid levels in hyperinsulinemia subjects. In conclusion, the result reveals a correlation as well as modulation between serum ascorbic acid levels and proteins that play vital roles in regulating different aspects of the immune response in individuals at risk of T2D. The development of a predictive signature for ascorbic acid will further help the assessment of ascorbic acid status in clinical settings.

PSAT187 Bone Mineral Density Normalization in a Young Patient With a Physician Guided Nutrition and Exercise Intervention.

Abstract Lack of consensus on the type and amount of exercise to safely increase bone mineral density (BMD) prevents many clinicians from providing detailed recommendations on how to increase physical activity. We present a young man with low bone density, who was initiated on a non-pharmacologic regimen of physician-directed high intensity resistance exercise (HIRE) and adequate nutrition support. A 28-year-old male was found to have a low bone density attributed to autoimmune hepatitis, chronic systemic glucocorticoids used for 7 years and poor lifestyle habits. Despite stopping steroids since 2014, his BMD was worsening in the femoral neck (FN) to 0.723 g/cm2 (Z-score -2.7) in 2018, representing a 3% loss from the prior year. His BMD in the total hip (TH) site also decreased from 0.775 g/cm2 (Z-score -2.1) to 0.751 g/cm2 (Z-score -2.3) in the same 1-year period (3.1% loss). The patient had no personal or family history of fractures, smoking or alcohol use, but did have a sedentary lifestyle and ate highly processed foods with poor nutritional value. After unremarkable evaluation for further causes of ongoing bone loss, in 09/2018 we initiated a tailored progressive high intensity resistance exercise (HIRE) program. Major compound movements such as squats, deadlifts, military press, and dynamic impact exercises such as medicine ball throws, jumps and farmers carry were performed 3 times a week, maintaining an intensity of >80% 1-repetition maximum with 5 repetitions. The HIRE program was modified every 3 months at endocrinology clinics. After the first year, one on one training with expert kinesiologist was introduced to correct exercise form. Nutrition recommendations were simple, focused on increasing weight, adequate dairy intake, and protein intake at 1.6g/kg of body mass. He maintained adherence to exercise and diet throughout 2018-2021. BMD measured by the same Lunar iDXA increased by 10.8% at the FN from 09/2018 to 09/2019. As often occurs in clinical practice, the patient had bone density scans performed at various centers throughout his years of care. Using BMD standardization algorithms, we estimate that after initiation of our HIRE and nutrition intervention, BMD increased at all sites (LS +9.7%, FN +17.7%, TH +12.7%) when compared to pre-intervention values. His most recent DXA scan on 12/2020 (Hologic Discovery) revealed a Z-score of -1.7 (LS), -1.5 (FN) and -1.5 (TH). We conclude that our HIRE and nutrition intervention lead to clinically significant bone density increases which are expected to lead to a reduction in fracture risk. Additionally, improved lifestyle habits and nutrition are expected to have multiple benefits beyond bone health. It is important that clinicians learn about different types of exercise programs to properly guide patients which could benefit. A HIRE program should be considered in select, able bodied patients with low bone density. Presentation: Saturday, June 11, 2022 1:00 p.m. - 3:00 p.m.

Stages of Change in Dairy Intake among Older Adults: Application of the Transtheoretical Model.

Adequate dairy product intake can reduce the risk of chronic disease, mortality, low quality of life, and healthcare expenditure. However, the insufficient consumption of dairy products is a serious issue in Eastern societies. To the authors’ knowledge, few studies have explored dairy intake among Taiwanese older adults, especially using the transtheoretical model. The study aims were to address the following unknowns: (i) the distribution of dairy product intake behavior on stages of change (SOC); (ii) differences in variables (intake knowledge (IK), intake cons (IC), intake pros (IP), and intake self-efficacy (ISE)) among SOCs; (iii) discriminative abilities of variables on SOCs; and (iv) predictive ability of variables (IK, IC, IP, and ISE) for dairy product intake behavior on SOC for older adults. An explorative cross-sectional study was conducted to collect data from northern Taiwan using a questionnaire. A total of 342 older adults were recruited. Data were analyzed using multivariate analysis of variance, discriminant analysis, and multiple linear regression. There was a significant difference between the variables and SOCs. There was a better discriminant among the five SOCs. Dairy product intake behaviors were significantly associated with knowledge and self-efficacy in the pre-action stage, and with cons, pros, and self-efficacy in the post-action stage. In conclusion, appropriate nutritional empowerment could benefit older adults by improving dairy intake among the different SOCs.

Dairy Product Intake Modifies MicroRNA Expression among Individuals with Hyperinsulinemia: A Post-Intervention Cross-Sectional Study

Introduction: MicroRNA (miRNA) profiles have been shown to change after intake of dairy products. Dysregulation of miRNA is associated with the changes in the level of glycemic parameters. The objectives are: (1) to investigate miRNA expression after consumption of dairy products and (2) to study the association between miRNAs and glycemic profile among individuals with hyperinsulinemia. Methods: In crossover design, 24 participants were randomized into 2 phases: high dairy (HD) (≥4 servings/day according to the Canadian food guide [2007]) and adequate dairy (AD) (≤2 servings/day) over 6 weeks. First, miRNAs were extracted from a pooled plasma sample of 10 subjects after HD and AD intervention which analyzed in duplicate by array hybridization (Affymetrix Gene Chip miRNA Array v. 4.0). Second, 6 miRNAs related to type 2 diabetes (T2D) were validated by quantitative reverse transcription polymerase chain reaction (qRT-PCR) from plasma of 24 participants. Results: Microarray analysis indicated that 297 miRNAs expressed differentially (FC ≥ ±1.2; p value <0.05) in a pooled plasma sample of 10 subjects. Among pooled miRNAs, the level of selected miRNAs, including miR-652-3p, miR-106b-5p, miR-93-5p, and miR-107 were downregulated; conversely, miR-223-3p and miR-122-5p were upregulated. After qRT-PCR validation, only the expression level of miR-106-5p tended to be increased after HD compared to AD (p = 0.06). After AD intervention, the level of fasting plasma glucose (FPG) and insulin and homeostatic model assessment of insulin resistance were negatively correlated with miR-122-5p. Similarly, negative correlation was found between miR-106-5p and FPG. Conclusion: The miRNAs profile was modified after HD compared to AD, and this may have role in modifying the risk of T2D (registration No. NCT02961179).

Impact of Dairy Intake on Plasma F2-IsoProstane Profiles in Overweight Subjects with Hyperinsulinemia: A Randomized Crossover Trial.

F2-IsoProstanes (F2-IsoPs) are major biomarkers of oxidative stress and are associated with type 2 diabetes (T2D). Further, plasma levels of F2-IsoPs may be modified by dairy products. The aim is to investigate the effect of high dairy product (HD) consumption compared to an adequate dairy product (AD) consumption on the level of F2-IsoPs among hyperinsulinemic subjects. In this crossover study, participants were randomized in two groups: HD (≥4 servings/day), or AD (≤2 servings/day) for six weeks. Fasting blood glucose and insulin were measured. The homeostatic model assessment of insulin resistance (HOMA-IR) was calculated. Six isomers of F2-IsoPs were quantified by HPLC-MS/MS. Twenty-seven subjects with hyperinsulinemia (mean age; 55 ± 13 years, BMI; 31.4 ± 3.3 kg/m2) were included. Fasting glucose, insulin and HOMA-IR were unchanged after HD or AD intervention. After HD intake, the total level of F2-IsoPs (p = 0.03), 5-F2t-IsoP (p = 0.002), and 8-F2t-IsoP (p = 0.004) decreased compared to AD. The 15-F2t-IsoP tended to be positively correlated with fasting blood glucose (r = 0.39, p = 0.08). Generally, F2-IsoPs levels were higher among men compared to women regardless of the dairy intake. Overall, intake of HD decreased plasma levels of F2-IsoPs compared to AD without modifying glycemic parameters.

Milk Intake Enhances Cerebral Antioxidant (Glutathione) Concentration in Older Adults: A Randomized Controlled Intervention Study

ObjectivesThis randomized controlled trial was to confirm the potential benefit of adequate dairy food intake to raise brain antioxidant, glutathione (GSH), in low dairy consumers through a longitudinal dietary intervention. This confirmatory study is based on our previous findings of positive correlations between brain GSH levels and dairy food consumption, particularly milk (P < 0.001), in a cross-sectional study of older adults. MethodsA total of 80 older adults with a low dairy intake (≤1.5 servings/day) were enrolled in a 3-month milk intervention study. Brain GSH levels were measured using multiple quantum chemical shift imaging at 3 T. After baseline MR scans, participants were randomized into either the intervention or control group using a random-sequence algorithm. The control group continued their usual intake of dairy ≤1.5 servings/day (<1 cup of milk/day) while the milk intervention group was provided 1% milk weekly and instructed to consume 3 cups of milk/day for three months. Dietary intake was assessed with 24-hr diet recalls, 7-day food records, and a Diet Screener Questionnaire and was analyzed using NDSR software. Brain GSH levels in each group were compared between baseline and post-intervention using paired t-tests, and longitudinal changes of GSH levels were compared between groups using two sample t-tests. ResultsAmong 80 enrolled participants (60–89 years old), 66 participants (49 intervention; 17 controls) completed the study. The milk intake of the controls was similar at baseline and the end of study timepoints (0.4 ± 0.4 cups/day for both), while that of the intervention group increased from 0.2 ± 0.3 cups/day to 3.0 ± 0.6 cups/day (P < 0.001). The intervention group showed 7.4 ± 11.7% increases in parietal GSH (P < 0.001) and 4.6 ± 8.7% increases in fronto-parietal GSH (P = 0.003) levels after intervention, while the control group showed no changes in brain GSH. The fronto-parietal GSH increase in the intervention group was greater than that of the control group (P < 0.05). ConclusionsDietary milk consumption could modulate brain GSH levels. This study demonstrates the effect of diet on brain antioxidants, which could lead to the development of new strategies in strengthening cerebral antioxidant defenses and thereby improving brain health in the aging population. Funding SourcesNational Dairy Council.

Premenopausal Osteoporosis &amp; Perfluoroalkyl Substance Exposure; Is There a Link?

Introduction: Perfluoroalkyl substances (PFAS) like Perflouroctanoate (PFOA) and Perflurooctane sulfonate (PFOS) are ubiquitous environmental contaminants that have been in industrial use for many years. Many known adverse effects include malignancies, reproductive and thyroid dysfunction. However, there is limited literature regarding PFAS causing low bone density. We report a case of a premenopausal woman with a history of exposure to PFAS who was recently diagnosed with osteoporosis.Clinical Case: A 36-year-old lady with a history of hypothyroidism, on levothyroxine, presented to the orthopedics clinic with complaints of sudden onset right foot pain with no trauma. She was found to have a fracture of her right second metatarsal bone. Notably, over a period of five years she had suffered multiple fractures including metatarsal, elbow and a wrist fracture, all with minimal or no trauma. She denied smoking, alcohol, chronic steroid or PPI use, history of malabsorption, celiac disease, kidney stones, malignancy or liver problems. Her menstrual cycles were regular; she was on oral contraceptives in the past for dysmenorrhea. She is on Vitamin D supplementation and consumes adequate dairy products daily. There is no family history of hip fracture or osteoporosis. Labs showed: Calcium 8.9mg/dl, Phosphorus 2.4mg/dl (2.5–4.5mg/dl), intact PTH was 92.7pg/ml (8-97pg/ml), 24-hour urine calcium was undetectable. Vitamin D was 56.6ng/ml (30-100ng/ml). CBC, TSH, FSH, liver & kidney functions were all normal. Anti-endomysial, anti-gliadin and anti-tissue trans glutaminase antibodies were all unremarkable. IgA level was 362mg/dl (8–352 mg/dl). DXA scan revealed the lowest Z-score (-3.1) in the lumbar spine. She reported a history of exposure to PFAS with a blood level of 22.3ng/ml for PFOA and 48.4ng/ml for PFOS in the year 2005. Plan is to initiate bisphosphonate therapy for the treatment of osteoporosis.Discussion: PFAS are known endocrine disruptive agents that have been used widely in making a wide range of consumer products including nonstick and stain-resistant coatings of cookware, food containers. Recent studies suggest that serum PFAS concentrations were associated with lower bone density. There was a higher incidence of lower lumbar spine bone density in patients exposed to PFOS. PFOA is believed to compete with calcitriol at the same binding site on Vitamin D receptor resulting in changes in the osteoblasts thereby decreasing bone mineralization.Conclusion: There needs to be increased awareness about the association of low bone density in patients exposed to PFAS. This is especially important in the evaluation of premenopausal osteoporosis.

人間ドック受診者における泌尿器がん（腎がん・膀胱がん・前立腺がん）罹患率およびリスク因子に関する検討

(Objective) We studies morbidity and risk factors related to urinary cancers (renal, bladder, and prostate) from health screening interviews and results. (Subjects and Methods) We extracted data from 48,454 adults who underwent health screenings between April 2006 and March 2008.Of particular interest were examinees who were newly diagnosed with urinary cancer after the consultation. The data examined included factors such as sex, age, total years of smoking, body mass index (BMI), drinking status, weight gain (>10 kg from the age of 20), accumulation of stress, sleep condition/habits, adequate dairy product intake, hypertension, diabetes mellitus, and dyslipidemia. (Results) The numbers of patients who were diagnosed with renal, bladder, or prostatic cancer were 45, 47, and 215, respectively. The corresponding morbidity rates were 0.093%, 0.097%, and 0.721%. From the results of the univariate analysis, renal cancer was found to be significantly correlated with the male gender, old age, high BMI, drinking, weight gain, and hypertension. In addition, we found a significant correlation between bladder cancer and male gender, old age, total years of smoking, and drinking. Prostate cancer was significantly correlated with old age, total years of smoking, weight gain, accumulation of stress, and dyslipidemia. The multivariate analysis demonstrated a significant correlation between renal cancer and old age, between bladder cancer and both male gender and old age, and between prostatic cancer and both old age and dyslipidemia. (Conclusion) Old age was identified as a common risk factor that is significantly and independently correlated with urinary cancers.

Dairy product intake modifies gut microbiota composition among hyperinsulinemic individuals.

The objectives of this study were to investigate differences in gut microbiota (GM) composition after high dairy intake (HD) compared to adequate dairy intake (AD) and to correlate GM composition variations with the change in glycemic parameters in hyperinsulinemic subjects. In this crossover study, 10 hyperinsulinemic adults were randomized to HD (≥ 4 servings/day) or AD (≤ 2 servings/day) for 6weeks, separated by a 6-week washout period. Fasting insulin and glucose levels were measured after each intervention. Insulin resistance was calculated with the homeostasis model assessment of insulin resistance (HOMA-IR). GM was determined with 16S rRNA-based high-throughput sequencing at the end of each intervention. Paired t test, correlations and machine learning analyses were performed. Endpoint glycemic parameters were not different between HD and AD intake. After HD compared with AD intake, there was a decrease in the abundance of bacteria in Roseburia and Verrucomicrobia (p = 0.04 and p = 0.02, respectively) and a trend for an increase abundance in Faecalibacteria and Flavonifractor (p = 0.05 and p = 0.06, respectively). The changes in abundance of Coriobacteriia, Erysipelotrichia, and Flavonifractor were negatively correlated with the change in HOMA-IR between the AD and HD phases. Furthermore, a predictive GM signature, including Anaerotruncus, Flavonifractor, Ruminococcaceae, and Subdoligranulum, was related to HOMA-IR. Overall, these results suggest that HD modifies the abundance of specific butyrate-producing bacteria in Firmicutes and of bacteria in Verrucomicrobia in hyperinsulinemic individuals. In addition, the butyrate producing bacteria in Firmicutes phylum correlate negatively with insulin resistance.

Increased Dairy Product Intake Alters Serum Metabolite Profiles in Subjects at Risk of Developing Type 2 Diabetes.

Metabolomics is increasingly used to identify biomarkers of diet or chronic diseases, such as type 2 diabetes. Yet, metabolite signatures following dairy intake in hyperinsulinemic subjects have not been identified. The objective is to evaluate the effects of a high dairy diet (HD) for 6 weeks (4 servings or more per day), compared with an adequate dairy diet (AD) (2 servings or less per day), on serum metabolite profiles in hyperinsulinemic adults. In this crossover trial, subjects are randomized to HD or AD for 6 weeks. Serum metabolites are assessed using GC/MS. Twenty-six subjects completed the study. Levels of pentadecanoic acid, tyrosine and lathosterol are increased in HD, while 1,5-anhydrosorbitol, myo-inositol, 3-aminoisobutyric acid and beta-sitosterol are decreased (p < 0.05). Sorbitol levels are increased after AD, while hexanoic acid, lauric acid, l-kynurenine, methionine, and benzoic acid levels are reduced (p < 0.05). Histidine, caprylic acid, nonanoic acid, decanoic acid, lauric acid, heptadecanoic acid, and benzoic acid levels are increased in HD compared to AD, while malic acid levels are increased in AD compared with HD (p < 0.05). Higher dairy products intake modifies metabolite profiles in hyperinsulinemic subjects.

Impact of a High Intake of Dairy Product on Insulin Sensitivity in Hyperinsulinemic Adults: A Crossover Randomized Controlled Trial

ABSTRACTBackgroundDairy product intake has been associated with decreased risk of type 2 diabetes (T2D) in cohort studies. However, results from clinical trials on T2D-related risk factors remain inconclusive.ObjectiveThe aim of this clinical trial was to evaluate the impact of high dairy product intake (HD) (≥4 servings/d) for 6 wk, compared with an adequate dairy product intake (AD) (≤2 servings/d), on glycemic and insulinemic parameters, insulin sensitivity, insulin secretion, and β-cell function in hyperinsulinemic adults.MethodsIn this crossover clinical trial, hyperinsulinemic adults were randomly assigned to HD or AD for 6 wk, then crossed over after a 6-wk washout period. Serum glucose, insulin, C-peptide, HOMA-IR, Matsuda index, insulinogenic index, and disposition index were measured and analyzed using a repeated-measures mixed model adjusted for age, sex, and BMI. Anthropometric measures were collected and food intake was evaluated using a validated FFQ.ResultsNineteen men and 8 women completed the study (mean ± SD age: 55 ± 14 y; BMI: 31.3 ± 3.3 kg/m2. Dairy product intake was 5.8 servings/d in the HD condition and 2.3 servings/d in the AD condition after 6 wk. No difference was observed between HD and AD after 6 wk for all outcomes.ConclusionsHD does not affect glycemic and insulinemic parameters, insulin sensitivity, insulin secretion, and β-cell function over AD in hyperinsulinemic adults. Additional larger and longer studies assessing T2D-related risk factors are required. This trial was registered at clinicaltrials.gov as NCT02961179.

Maintenance of exercise training benefits is associated with adequate milk and dairy products intake in elderly hypertensive subjects following detraining.

ABSTRACTObjective To investigate whether maintenance of exercise training benefits is associated with adequate milk and dairy products intake in hypertensive elderly subjects after detraining.Methods Twenty-eight elderly hypertensive patients with optimal clinical treatment underwent 16 weeks of multicomponent exercise training program followed by 6 weeks of detraining, and were classified according to milk and dairy products intake as low milk (<3 servings) and high milk (≥3 servings) groups.Results After exercise training, there was a significant reduction (p<0.001) in body weight, systolic, diastolic and mean blood pressure, an increase in lower and upper limb strength (chair-stand test and elbow flexor test) as well as in aerobic capacity (stationary gait test) and functional capacity (sit down, stand up, and move around the house) in both groups. However, in the Low Milk Intake Group significant changes were observed: body weight (+0.5%), systolic, diastolic and mean blood pressure (+0.9%,+1.4% and +1.1%, respectively), lower extremity strength (-7.0%), aerobic capacity (-3.9%) and functional capacity (+5.4) after detraining. These parameters showed no significant differences between post-detraining and post-training period in High Milk Intake Group.Conclusion Maintenance of exercise training benefits related to pressure levels, lower extremity strength and aerobic capacity, is associated with adequate milk and dairy products intake in hypertensive elderly subjects following 6 weeks of detraining.

Strategies for public health initiatives targeting dairy consumption in young children: a qualitative formative investigation of parent perceptions.

Dairy products contain essential nutrients to ensure healthy growth and bone development in children. However, a significant proportion of children in developed countries fail to consume the daily recommended intake of dairy products. Parents are the gatekeepers of familial nutritional intake and represent a potential vehicle through which to increase dairy consumption in children. As such, formative research was conducted to gain insight into parents' perceived barriers to and benefits of purchasing and consuming dairy products and to develop innovative message content that could be utilized in future public health campaigns. Seven in-depth group interviews were conducted in two phases between February and May 2015. Interviews were conducted in local recreational centres and libraries in British Columbia, Canada. Mothers (n 21, mean age 38 (sd 5) years) and fathers (n 9, mean age 38 (sd 3) years) of children aged 4-10 years. Parents perceived both positive and negative physical outcomes associated with consuming dairy. Lack of trustworthy information was a frequently discussed barrier theme to purchasing and consuming dairy products. Mothers were concerned about the cost of dairy products. Differences in purchasing and consumption strategies were reported between parents of children who consumed adequate dairy and those who did not. Parents believed the most appropriate communication channel was through print material. Messages targeting parents, as a means of increasing dairy consumption in children, should address barriers identified by parents. In addition, practical tips should be provided to promote purchasing and consumption of dairy products.

Differences in response to heat stress due to production level and breed of dairy cows.

The climatic conditions in Croatia are deteriorating which significantly increases the frequency of heat stress. This creates a need for an adequate dairy farming strategy. The impact of heat stress can be reduced in many ways, but the best long-term solution includes the genetic evaluation and selection for heat stress resistance. In order to create the basis for genetic evaluation, this research determined the variation in daily milk yield (DMY) and somatic cell count (SCC) as well as the differences in resistance to heat stress due to production level (high, low) and breed (Holstein, Simmental) of dairy cattle breed in Croatia. For statistical analysis, 1,070,554 test-day records from 70,135 Holsteins reared on 5679 farms and 1,300,683 test-day records from 86,013 Simmentals reared on 8827 farms in Croatia provided by the Croatian Agricultural Agency were used. The results of this research indicate that the high-producing cows are much more susceptible to heat stress than low-producing especially Holsteins. Also, the results of this research indicate that Simmental breed, in terms of daily milk production and somatic cell count, could be more resistant to heat stress than Holstein. The following research should determine whether Simmentals are genetically more appropriate for the challenges that are in store for the future milk production in this region. Furthermore, could an adequate production level be achieved with Simmentals by maintaining the heat resistance?

Influence of Amino Acids in Dairy Products on Glucose Homeostasis: The Clinical Evidence.

Dairy products have been hypothesized to protect against type 2 diabetes because of their high content of whey proteins, rich in branched-chain amino acids (BCAAs) - leucine, isoleucine and valine - and lysine, which may decrease postprandial glucose responses and stimulate insulin secretion. Paradoxically, epidemiologic studies also show that higher levels of plasma BCAAs have been linked to insulin resistance and type 2 diabetes. Therefore, the objective was to review the recent clinical evidence concerning the intake of amino acids found in dairy proteins so as to determine their impact on glucose homeostasis in healthy persons and in those with prediabetes and type 2 diabetes. Clinical studies have reported that the major dairy amino acids, namely, leucine, isoleucine, glutamine, phenylalanine, proline and lysine, have beneficial effects on glucose homeostasis. Yet the reported doses of amino acids investigated are too elevated to be reached through adequate dairy product intake. The minor dairy amino acids, arginine and glycine, may improve glucose homeostasis by improving other risk factors for type 2 diabetes. Further, the combination of amino acids may also improve glucose-related outcomes, suggesting additive or synergistic effects. Nevertheless, additional long-term studies in individuals with prediabetes and type 2 diabetes are needed to ascertain the benefits for glucose homeostasis of amino acids found in dairy foods.

A Mediterranean Diet to Improve Cardiovascular and Cognitive Health: Protocol for a Randomised Controlled Intervention Study.

The Mediterranean diet has demonstrated efficacy for improving cardiovascular and cognitive health. However, a traditional Mediterranean diet delivers fewer serves of dairy and less dietary calcium than is currently recommended in Australia, which may limit long-term sustainability. The present study aims to evaluate whether a Mediterranean diet with adequate dairy and calcium can improve cardiovascular and cognitive function in an at-risk population, and thereby reduce risk of cardiovascular disease (CVD) and cognitive decline. A randomised, controlled, parallel, crossover design trial will compare a Mediterranean diet supplemented with dairy foods against a low-fat control diet. Forty participants with systolic blood pressure above 120 mmHg and at least two other risk factors of CVD will undertake each dietary intervention for eight weeks, with an eight-week washout period between interventions. Systolic blood pressure will be the primary measure of interest. Secondary outcomes will include measures of cardiometabolic health, dietary compliance, cognitive function, assessed using the Cambridge Neuropsychological Test Automated Battery (CANTAB), psychological well-being and dementia risk. This research will provide empirical evidence as to whether the Mediterranean diet can be modified to provide recommended dairy and calcium intakes while continuing to deliver positive effects for cardiovascular and cognitive health. The findings will hold relevance for the field of preventative healthcare and may contribute to revisions of national dietary guidelines.

Determinants of vitamin D status in pregnant women and neonates.

Evidence suggests a beneficial effect of vitamin D on perinatal health; however, low vitamin D status is prevalent in pregnant women and neonates. The objective was to determine factors that are associated with vitamin D status of mothers in early pregnancy and neonates. The study comprised 1,635 pregnant women from Quebec City and Halifax, Canada, 2002-2010. Vitamin D status was based on the concentration of 25-hydroxy-vitamin D [25(OH)D] determined with a chemiluminescence immunoassay in maternal sera collected at a median of 15 weeks' gestation and in neonatal cord sera at delivery. A questionnaire with information on potential determinants was completed midpregnancy. A total of 44.8% of mothers and 24.4% of neonates had 25(OH)D concentrations &lt;50 nmol/L. Adjusted mean (95% confidence interval) maternal 25(OH)D levels were higher in summer than in winter by 16.1 nmol/L (13.6-18.7), and in those in the highest versus the lowest category of education by 6.1 nmol/L (0.5-11.8), in BMI &lt;25 kg/m2 versus BMI ≥35 kg/m2 by 8.2 nmol/L (4.0-12.3), and in the highest versus the lowest physical activity category by up to 9.5 nmol/L (2.9-16.1). Determinants of neonatal 25(OH)D levels were similar but also included maternal age, dairy intake, supplement use and 25(OH)D level. This study suggests that vitamin D status of pregnant women and/or neonates might be improved through supplementation, adequate dairy intake, a move towards a healthy pre-pregnancy body weight, and participation in physical activity. Controlled studies are needed to determine the effectiveness of interventions aimed at these factors.

Características antropométricas y hábitos alimentarios de estudiantes de danza clásica, Instituto Superior de Arte del Teatro Colón

IntroductionDance student has a high demand, due to technical and talent they have possess, as well as the development of a slender and slim figure that has to be maintained.The aim of the study was to describe the anthropometric characteristics and eating habits of dance students. Materials and methodsSample: 16 female students of classical dance 8-14 years. Variables studied: Eating habits and anthropometric variables. ResultsThe mean age was 11.58 years. The BMI was 15.91kg/m2 (SD 1.43), of whom 62.5% were normal. The sum of folds had a mean of 52mm (SD 9.99, range 38 to 67mm). The muscle mass percentage was higher than fat mass, 35.73% (SD 2.8) vs. 32.37% (SD 4.2). The weight of muscle and fat mass was 12.23kg (SD 2.85) and 10.96kg (SD 3.45), respectively.The muscle/bone index was 2.45 (SD 0.24), and an adipose/muscle ratio of 0.9 (SD 0.17).Most had 4 meals daily and consumed adequate dairy products and meat, although 37.5% made an inadequate breakfast, 44 and 75% had an inadequate consumption of fruit and vegetables, respectively. ConclusionsThe main question should not be losing weight, but to change the figure at the expense of adequate reduction of body fat without losing muscle mass significantly. This should not affect the continuous learning of artistic technique and the normal processes of growth, maturation and development.

Provision of adequate dairy food will alleviate malnutrition in aged-care

Provision of adequate dairy food will alleviate malnutrition in aged-care