Adult Nutrition Research Articles

COVID-19: new challenges for medical science and practical health

Currently, due to the wide spread of the new coronavirus infection COVID-19 and the need for anti-epidemic measures, medical science should integrate all efforts to ensure, on the one hand, at the global level - the fight against the spread of infection, on the other hand, at the individual level - increasing the adaptive capacity and immune response of the organism to protect against COVID-19. Nutrition is the most important factor determining human health and the functioning of all mechanisms to protect a person from negative environmental factors. For the prevention and treatment of new coronavirus infection COVID-19, a significant role is played by the correction of eating disorders, including vitamin and micronutrient deficiency. Federal Research Centre of Nutrition and Biotechnology, together with Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing (Rospotrebnadzor), prepared Recommendations on nutrition for children and adults, requiring a self-isolation regime or quarantine at home in connection with COVID-19. In order to promptly inform and advise the population on nutrition optimization in the early days of anti-epidemic measures, an information reference Contact Center was created and is continuously functioning on the basis of the Federal Research Centre of Nutrition and Biotechnology. Equally important is the implementation of measures aimed at the prevention of food contamination with COVID-19 agent. In this regard, the Federal Research Centre of Nutrition and Biotechnology, together with Rospotrebnadzor prepared guidelines on measures to prevent the transmission of a new coronavirus infection through foods. Another aspect that the medical community has faced in connection with the pandemic is the need to reorient specialized medical organizations that have not previously worked with patients with infectious diseases in order to create Clinical centers for the treatment of the new coronavirus infection COVID-19. Thus, in the context of the spread of the new coronavirus infection COVID-19, many areas of medicine are involved in the process of providing anti-epidemic measures. Successful completion of the tasks will significantly reduce the negative consequences of the COVID-19 pandemic for the state and citizens.

Determination of Fructans in Infant Formula and Adult/Pediatric Nutritional Formula by Anion-Exchange Chromatography with Pulsed Amperometric Detection after Enzymatic Treatment: Collaborative Study, Final Action 2016.14

Fructans are added to infant formula and adult nutritionals for their prebiotic effect. A method (AOAC 2016.14) was developed for their analysis which has already demonstrated excellent performance during single laboratory validation. To determine repeatability and reproducibility of the method through a collaborative study. Fourteen laboratories from 11 different countries enrolled for the study. Participants analyzed a practice sample, then 8 formula or adult nutritionals in blind duplicate. Results and any method modifications were reported to the study director. Twelve laboratories provided results on time for reporting. Precision results for five samples met the requirements of the Standard Method Performance Requirements (SMPR 2014.002), with RSDr ranging from 3.60 to 4.25% and RSDR ranging from 5.90 to 11.7%. The practice sample also met the requirements of SMPR 2014.002, with RSDr and RSDR of 2.53% and 6.70% respectively. Precision results for three test samples did not fully meet the SMPR, with RSDr ranging from 2.27 to 7.65% and RSDR ranging from 12.8 to 15.1%. After review, the AOAC Stakeholder Panel for Infant Formula and Adult Nutritional Expert Review Panel (SPIFAN ERP) concluded that the data presented mostly met the SMPR and hence recommended that the method to be advanced for adoption as an AOAC Final Action method. The method described in AOAC 2016.14 is suitable for the determination of fructans in infant formula and adult nutritionals.

Determination of Lutein, β-Carotene, and Lycopene in Infant Formula and Adult Nutritionals by Ultra-High Performance Liquid Chromatography: Collaborative Study, Final Action 2016.13 for β-Carotene and Lycopene Only.

Lutein, β-carotene, and lycopene are among the most common carotenoids present in human milk and are frequently added to infant formula and adult nutritionals. A collaborative study was conducted to assess the interlaboratory performance of AOAC Official MethodSM2016.13 for the determination of lutein, β-carotene, and lycopene in infant formula and adult nutritionals. Thirteen laboratories agreed to participate in the study and 10 laboratories from seven different countries reported results. The study samples included blind duplicates of 6 matrices fortified with lutein, 7 matrices fortified with β-carotene, and 1 fortified with lycopene. NIST SRM 1869 was included in the sample set as a reference material. After the removal of outliers and invalid data, the repeatability (RSDr) data was ≤10.0% for all-trans-lutein, ≤12.0% for total lutein, ≤4.2% for all-trans-β-carotene, ≤6.0% for total β-carotene, and 1.6% for total lycopene. Reproducibility (RSDR) was ≤14.8% for all-trans-lutein, ≤19.9% for total lutein, ≤15.3% for all-trans-β-carotene, ≤13.7% for total β-carotene, and 7.4% for total lycopene. The repeatability and reproducibility values met the criteria in the Standard Method Performance Requirements (SMPRs) for β-carotene and lycopene and it was recommended that the method be approved as a Final Action for these analytes. Since the method did not meet the SMPR for lutein, it was recommended that it remain a First Action method for this analyte. AOAC Official MethodSM2016.13 was validated through a collaborative study to be accurate and reproducible for the determination of β-carotene and lycopene in infant formula and adult nutritionals.

FOOD INSECURITY SITUATION IN MALAYSIA: FINDINGS FROM MALAYSIAN ADULT NUTRITION SURVEY (MANS) 2014

Food insecurity affects food intake, and it could prevent an individual from consuming enough nutritious food to support and maintain health. The aim of this paper is to determine the prevalence and factors influencing food insecurity among Malaysian households. In 2014, the Malaysian Adult Nutrition Survey (MANS) was carried out, and one of the components measured was food insecurity. Six out of sixteen questions from the food security core-module questionnaire were adopted and answered by 2962 adults. The results showed that about 25.0% adult experienced food quantity insufficiency, 25.5% had food variety insufficiency, 21.9% practised reduced size of the meal, and 15.2% skipped main meal due to lack of money to spend on. For the parents, 23.7% only rely on cheap food to feed children, and 20.8% could not afford to purchase various foods to feed their children. Location, strata, race, level of education, working status and household income shows significant difference while none of the nutritional status components found to be difference in all six parameters of food insecurity measured. Logistic regression with adjusted odds ratios discovered race, education level and household income were related to risk to all six parameters of food insecurity. In conclusion, food insecurity can be a serious problem in Malaysia. An effective and comprehensive effort by the government in terms of policy solution is required to increase education level and ensure an adequate income for every household. Therefore, future research should focus on some of those promising policy solutions and at the same time, study the other possible underlying factors that may lead to food insecurity.

Nutrition and dietetic students’ knowledge and attitudes regarding food science and technology

AbstractThe objective of this study was to assess knowledge and attitudes of nutrition and dietetic college students regarding food science and technology. It was designed as a cross‐sectional survey using a self‐administered online questionnaire, constructed by a formative research process, including accredited dietetics programs in the United States and Puerto Rico. There were a total of 535 participants consisting of adult (≥18 years old) nutrition and dietetic students (undergraduate, graduate, and dietetic interns). Frequencies and percentages were calculated to describe the study participants. Where appropriate, the Chi‐square test was used to test categorical variables across two or more levels. More than half (55.1%) agreed that they were knowledgeable in food science and technology. Greater than half (56.8%) of the participants indicated that they “occasionally” or “rarely” covered food science and technology topics in their current program and 70.1% either “agreed” or “strongly agreed” that their current curriculum could benefit from adding more related topics. Overall, the majority (66.7%) of respondents indicated their overall impression of the food industry was “poor” or “neutral.” The results support adding/strengthening food science and technology components in nutrition curricula. Such education may provide future nutrition professionals with the knowledge and skills needed to effectively utilize food science and technology within their field.

Nutrition and Lifestyle Behavior Peer Support Program for Adults with Metabolic Syndrome: Outcomes and Lessons Learned from a Feasibility Trial.

Background: While peer support interventions have shown to benefit adults with certain chronic conditions, there is limited evidence on its feasibility and effectiveness among people with metabolic syndrome (MetS). This paper describes the outcomes of a pre-post feasibility trial of “PEeR SUpport program for ADults with mEtabolic syndrome” (PERSUADE), an evidence-based and community-specific nutrition and lifestyle behavior peer support program for Malaysian adults with MetS. Methods: We recruited 48 peers (median age: 46 (IQR = 11) years old) into four peer groups, who underwent 3 months of PERSUADE, followed by 3 months of follow-up period. Statistical analyses were conducted at post-intervention and post-follow-up to assess the changes in nutrition intake, anthropometry, and metabolic parameters. Results: Although there were significant overall increases in total carbohydrate intake and glycemic load (both p < 0.001), we noted significant reductions in the intakes of total energy and fat (both p < 0.001). Physical activity (total METS/week) also showed a significant improvement (p < 0.001). Overall, significant but marginal improvements in anthropometric and vital metabolic parameters were also observed. Conclusions: The feasibility trial supported the adoption of PERSUADE, though there is a need to assess the long-term impact of the peer support program in local community settings.

Dietary patterns associated with meeting the WHO free sugars intake guidelines.

Emerging evidence suggests that free sugars intake in many countries exceeds that recommended by the WHO. However, information regarding real-world dietary patterns associated with meeting the WHO free sugars guidelines is lacking. The current study aimed to determine dietary patterns associated with meeting the guidelines to inform effective free sugars reduction interventions in New Zealand (NZ) and similar high-income countries. Dietary patterns were derived using principal component analysis on repeat 24-h NZ Adult Nutrition Survey dietary recall data. Associations between dietary patterns and the WHO guidelines (<5 and <10 % total energy intake) were determined using logistic regression analyses. New Zealand. NZ adults (n 4721) over 15 years old. Eight dietary patterns were identified: 'takeaway foods and alcohol' was associated with meeting both WHO guidelines; 'contemporary' was associated with meeting the <10 % guideline (males only); 'fast foods, sugar-sweetened beverages and dessert', 'traditional' and 'breakfast foods' were negatively associated with meeting both guidelines; 'sandwich' and 'snack foods' were negatively associated with the <5 % guideline; and 'saturated fats and sugar' was negatively associated with the <10 % guideline. The majority of NZ dietary patterns were not consistent with WHO free sugars guidelines. It is possible to meet the WHO guidelines while consuming a healthier ('contemporary') or energy-dense, nutrient-poor ('takeaway foods and alcohol') diet. However, the majority of energy-dense patterns were not associated with meeting the guidelines. Future nutrition interventions would benefit from focusing on establishing healthier overall diets and reducing consumption and free sugars content of key foods.

Parenteral nutrition in adults during acute illness: a clinical perspective for clinicians.

Parenteral nutrition (PN) is the administration of a nutritional formula by means other than the gastrointestinal (GI) tract. The formula may include carbohydrates, amino acids, lipids, electrolytes and/or micronutrients. The primary indications for PN are intestinal failure (IF) due to an underlying disease or treatment, or if the GI tract is not accessible. The goals of PN should be to ensure adequate nutrition provision to meet patient needs while minimising the risk of complications. PN should be commenced in <48 h in patients who are malnourished or otherwise within 7 days if oral or enteral nutrition is not possible or insufficient. There has been evolution in PN techniques and technology, and the risks associated with PN administration have been reduced. Monitoring clinical, laboratory and metabolic parameters in acute IF is essential to provision of safe nutritional support. When provided to appropriate patients with IF in a timely and considered manner, PN has been shown to be safe, improve nutritional parameters and reduce complications associated with malnutrition. This review aims to provide clinicians a practical guide for the management of PN in adult patients within the acute setting.

Process Evaluation of a Nutrition and Lifestyle Behavior Peer Support Program for Adults with Metabolic Syndrome.

Metabolic Syndrome (MetS) is a cluster of risk factors that increases the risk for diabetes and cardiovascular diseases. Lifestyle intervention is the gold standard of MetS management and prevention. Despite the growing positive influence of peer support-based interventions on management of various chronic diseases, its potential among adults with MetS has not been elucidated. We describe the development and process evaluation of a nutrition and lifestyle behavior “PEeR SUpport program for ADults with mEtabolic syndrome” (PERSUADE) using a systematic five-step approach—(i) review of evidence; (ii) focus group discussions; (iii) behavioral matrix development; (iv) module development; and (v) feasibility and process evaluation. High program adherence was recorded with 81.3% of participants attending all peer sessions. Participants’ content satisfaction score was high (93.3%) while peer leadership score was satisfactory (70.0%). There were significant reductions in all anthropometric and metabolic parameters assessed post intervention, except for diastolic blood pressure. Significant correlations were found between reductions in body fat and triglyceride, and content satisfaction. Peer leadership was only significantly correlated with reduction in triglyceride. Future studies can explore aspects of module interactivity, use of social media, and other means to stimulate consistent engagement of participants, as well as extending the implementations to other lifestyle-related diseases.

Sodium and Potassium Intakes and Their Ratio in Adults (18-90 y): Findings from the Irish National Adult Nutrition Survey.

An individual’s sodium to potassium intake ratio (Na:K) has been shown to be an important predictor of hypertension. The aim of this study was to estimate the mean 24 h urinary Na, K and Na:K of Irish adults and to identify the foods that determine Na:K in a nationally representative sample of Irish adults. This study was based on data from the Irish National Adult Nutrition Survey (2008–2010) (NANS), which collected spot urine samples and dietary data in a nationally representative sample of Irish adults aged 18+ years. The mean urinary molar Na:K of Irish men and women was 1.90 and 2.15, respectively, which exceed target molar ratios of ≤1.0 and ≤2.0. The mean estimated 24-h urinary excretion of Na was 4631 mg for men and 3525 mg for women, which exceed target maximum population intakes for all gender and age groups. The mean estimated 24-h urinary excretion of K was 3894 mg for men and 2686 mg for women, with intakes in women of all ages and older men (65+ years) below current recommendations. The key foods positively associated with a lower Na:K were fruits, vegetables, potatoes, breakfast cereals, milk, yogurt and fresh meat, while the foods negatively associated with a lower Na:K were breads, cured and processed meats and butters and fat spreads. Strategies to reduce sodium and increase potassium intakes are necessary to lower population Na:K, which may help to reduce the burden of hypertension-related diseases in the Irish population.

When does diet matter? The roles of larval and adult nutrition in regulating adult size traits in Drosophila melanogaster

Adult body size is determined by the quality and quantity of nutrients available to animals. In insects, nutrition affects adult size primarily during the nymphal or larval stages. However, measures of adult size like body weight are likely to also change with adult nutrition. In this study, we sought to explore the roles of nutrition throughout the life cycle on adult body weight and the size of two appendages, the wing and the femur, in the fruit fly Drosophila melanogaster. We manipulated nutrition in two ways: by varying the protein to carbohydrate content of the diet, called macronutrient restriction, and by changing the caloric density of the diet, termed caloric restriction. We employed a fully factorial design to manipulate both the larval and adult diets for both diet types. We found that manipulating the larval diet had greater impacts on all measures of adult size. Further, macronutrient restriction was more detrimental to adult size than caloric restriction. For adult body weight, a rich adult diet mitigated the negative effects of poor larval nutrition for both types of diets. In contrast, small wing and femur size caused by poor larval diet could not be increased with the adult diet. Taken together, these results suggest that appendage size is fixed by the larval diet, while those related to body composition remain sensitive to adult diet. Further, our studies provide a foundation for understanding how the nutritional environment of juveniles affects how adults respond to diet.

New Insights Into Intestinal Failure-Associated Liver Disease in Children.

Development of intestinal failure-associated liver disease (IFALD) is a common complication of long-term parenteral nutrition (PN) in children and adults. The molecular and cellular mechanisms and the phases of IFALD are now being delineated. Components of PN lipid emulsions, including plant sterols, interact with hepatic innate immune activation promoted by products of gut bacterial overgrowth/dysbiosis and altered intestinal barrier function (gut-liver axis) and by episodes of sepsis to cause cholestasis and IFALD. New therapeutic strategies, including modifications of intravenous lipid emulsions to reduce pro-inflammatory fatty acids and plant sterol content, can lower the risk of IFALD, reverse cholestasis, and reduce complications, although the significance of persisting hepatic fibrosis is unknown. This review will provide an update on advances in the pathogenesis of IFALD, newer therapeutic and preventative strategies, and challenges that confront managing patients with IFALD.

Efficacy and safety of food fortification to improve vitamin D intakes of older adults.

The aim of this study was to determine the best foods for potential vitamin D food fortification and to model the efficacy and safety of different food fortification scenarios in adults ≥50 y of age in Ireland. National Adult Nutrition Survey vitamin D data for participants ≥50 y of age were updated. Vitamin D from foods with natural and added vitamin D was estimated and daily vitamin D intake patterns were examined. Data modeling was used to estimate the effects of target food fortification scenarios. Almost two-thirds of the mean daily vitamin D intake of adults ≥50 y of age (7 ± 7 µg) comes from foods with added vitamin D. Milk and bread are the most frequently consumed foods across all meals and were subsequently targeted for the data modeling exercise. Results from the data modeling show that vitamin D intake increased between 9 and 17 µg/d, depending on the fortification scenario. Fortifying milk or bread resulted in ∼30% or ∼55% of individuals meeting the Recommended Daily Allowance (RDA); however, fortifying both simultaneously resulted in ∼70% meeting the RDA. Currently, the majority of Irish adults ≥50 y of age are not meeting dietary recommendations for vitamin D. Fortification of commonly consumed foods such as milk and bread could improve daily intakes such that ∼70% of the cohort would meet the minimum recommendation. Future research should examine the efficacy of different food fortification scenarios to improve vitamin D intakes for older adults.

Diet quality, nutrient intakes and biochemical status of New Zealand women of childbearing age according to alcohol consumption patterns.

To investigate associations between alcohol consumption patterns and diet quality, nutrient intakes and biochemical profile of women of childbearing age. Nutrient intake data from 24 h diet recalls, alcohol consumption data and diet quality from the Dietary Habits Questionnaire, and biochemical analyses from the cross-sectional 2008/09 Adult Nutrition Survey in New Zealand. New Zealand households. New Zealand women aged 18-45 years (n 1124). All analyses were completed using Stata and survey weights were used to allow for the complex survey design to produce population estimates. Multinomial logistic regression models were used to examine the associations between drinking patterns and the variables of interest, with 'infrequent moderate/light' drinkers being the reference category. The findings indicate that alcohol-consuming women of childbearing age tend to replace food energy with alcohol energy (P = 0·022). 'More frequent heavy' and 'more frequent moderate/light' drinkers had higher intakes of total, mono- and polyunsaturated fats with the latter group also consuming higher levels of saturated fats (P < 0·05). Women who were 'infrequent moderate/light' drinkers had relatively better diet quality, nutrient intakes and adequate biochemical status in comparison to other drinkers and abstainers. 'Infrequent heavy' drinkers, who were predominantly younger in age, had lower serum vitamin B12 levels (P = 0·01) with a higher proportion of women in this category having below-recommended levels of serum folate (P < 0·05). Alcohol consumption, especially heavy drinking patterns, may compromise nutritional status of women of childbearing age.

Habitual protein intake, protein distribution patterns and dietary sources in Irish adults with stratification by sex and age.

Given the importance of habitual dietary protein intake, distribution patterns and dietary sources in the aetiology of age-related declines of muscle mass and function, the present study examined these factors as a function of sex and age in Irish adults aged 18-90years comprising The National Adult Nutrition Survey (NANS). In total, 1051 (males, n=523; females, n=528) undertook a 4-day semi-weighed food diary. Total, body mass relative intake and percentage contribution to total energy intake of dietary protein were determined in addition to protein distribution scores (PDS), as well as the contribution of food groups, animal- and plant-based foods to total protein intake. Total and relative protein intake [mean (SD)] were highest in those aged 18-35years [96(3)gday-1 , 1.32(0.40)gkg-1 day-1 ], with lower protein intakes with increasing age (i.e. in adults aged≥65 years [82(22)g, 1.15(0.34)gkg-1 day-1 , P<0.001 for both]. Differences in protein intake between age groups were more pronounced in males compared to females. Protein distribution followed a skewed pattern for all age groups [breakfast, 15(10)g; lunch, 30(15)g; dinner, 44(17)g]. Animal-based foods were the dominant protein source within the diet [63%(11%) versus 37%(11%) plant protein, P<0.001]. Protein intake and the number of meals reaching the purported threshold for maximising post-prandial anabolism were highest in young adults, and lower with increasing age. For main meals, breakfast provided the lowest quantity of protein across all age categories and may represent an opportunity for improving protein distribution, whereas, in older adults, increasing the number of meals reaching the anabolic threshold regardless of distribution pattern may be more appropriate.

Habitual physical activity patterns in a nationally representative sample of U.S. adults.

Physical inactivity is a leading determinant of noncommunicable diseases. Yet, many adults remain physically inactive. Physical activity guidelines do not account for the multidimensionality of physical activity, such as the type or variety of physical activity behaviors. This study identified patterns of physical activity across multiple dimensions (e.g., frequency, duration, and variety) using a nationally representative sample of adults. Sociodemographic characteristics, health behaviors, and clinical characteristics associated with each physical activity pattern were defined. Multivariate finite mixture modeling was used to identify patterns of physical activity among 2003-2004 and 2005-2006 adult National Health and Nutrition Examination Survey participants. Chi-square tests were used to identify sociodemographic differences within each physical activity cluster and test associations between the physical activity clusters with health behaviors and clinical characteristics. Five clusters of physical activity patterns were identified: (a) low frequency, short duration (n = 730, 13%); (b) low frequency, long duration (n = 392, 7%); (c) daily frequency, short duration (n = 3,011, 55%); (d) daily frequency, long duration (n = 373, 7%); and (e) high frequency, average duration (n = 964, 18%). Walking was the most common form of activity; highly active adults engaged in more varied types of activity. High-activity clusters were comprised of a greater proportion of younger, White, nonsmoking adult men reporting moderate alcohol use without mobility problems or chronic health conditions. Active females engaged in frequent short bouts of activity. Data-driven approaches are useful for identifying clusters of physical activity that encompass multiple dimensions of activity. These activity clusters vary across sociodemographic and clinical subgroups.

The Relationship between Fish Intake and Urinary Trimethylamine-N-Oxide.

Fish intake is reported to be associated with certain health benefits; however, accurate assessment of fish intake is still problematic. The objective of this study is to identify fish intake biomarkers and examine relationships with health parameters in a free-living population. In the NutriTech study, ten participants randomized into the fish group consume increasing quantities of fish for 3 days per week for 3 weeks. Urine is analyzed by NMR spectroscopy. Trimethylamine-N-oxide (TMAO), dimethylamine, and dimethyl sulfone are identified and display significant dose-response with intake (p<0.05). Fish consumption yields a greater increase in urinary TMAO compared to red meat. Biomarker-derived fish intake is calculated in the National Adult Nutrition Survey cross-sectional study. However, the correlation between fish intake and TMAO (r=0.148, p<0.01) and that between fish intake and calculated fish intake (r=0.142, p<0.01) are poor. In addition, TMAO shows significantly positive correlation with serum insulin and insulin resistance in males and the relationship is more pronounced for males with high dietary fat intake. Urinary TMAO displays a strong dose-response relationship with fish intake; however, use of TMAO alone is insufficient to determine fish intake in a free-living population.

Single-Laboratory Validation of AOAC Official Method 2011.10 for Vitamin B12 in 'Indian' Infant and Pediatric Formulas and Adult Nutritionals.

Ensuring the quality of infant and pediatric formulas and adult nutritionals is of utmost importance for the health and safety of rapidly urbanizing Indian population. B12 is an important water-soluble vitamin, which is fortified externally in such nutritional formulations. The Bureau of Indian Standards (BIS) has a recommended microbiological assay-based method for determination of vitamin B12 that is not precise and accurate enough to meet the label claim requirements of infant, adult, and/or pediatric nutritionals. The AOAC Official Method 2011.10 was originally developed under the AOAC Stakeholder Panel on Infant Formula and Adult Nutritionals (SPIFAN) for the determination of vitamin B12 in infant and pediatric formulas and adult nutritionals. However, those SPIFAN matrixes did not contain malt and other indigenous cereal and legume flour (with or without cocoa powder), which are commonly found in Indian formulations. Thus, there is a need to replace this method with a more precise and accurate method. This study was undertaken to validate the AOAC Official Method 2011.10 on vitamin B12 in 'Indian' infant and pediatric formulas and adult nutritionals. The single-laboratory validation (SLV) of AOAC Method 2011.10 was carried out as per the AOAC Guidelines in six Indian pediatric and adult nutritional formulas to verify its fitness for purpose. Cobalamin in the sample was converted to cyanocobalamin on treatment with potassium cyanide. The sample was then subjected to clean up through a C18 cartridge. Vitamin B12 in the eluted extract was separated from other components using size-exclusion column chromatography followed by a C18 column. The HPLC analysis was carried out at 550 nm. Diastase treatment and C18 solid-phase extraction cleanup satisfactorily removed the matrix interference. The relative standard deviation of the determined values in 30 samples each from 6 selected Indian products and NIST SRM 1849a was <20%. The average recoveries for the spiked recovery samples ranged from 91.75 to 101.14%. Method 2011.10 met the standard method performance requirements set forth by the AOAC SPIFAN. Therefore, we recommend the Method 2011.10 for adoption as the BIS official method for the analysis of vitamin B12 in 'Indian' infant and pediatric formulas and adult nutritionals. This was the first SLV project that the AOAC India section undertook to extend the scope of the AOAC Method 2011.10 for vitamin B12 analysis by validating it in 'Indian' infant and pediatric formulas and adult nutritionals.

Preoperative enteral nutrition in adults with complicated Crohn's disease: Effect on disease outcomes and gut microbiota

ObjectivesThe use of exclusive enteral nutrition (EEN) in patients with Crohn's disease (CD) before surgical resection can reduce disease activity and improve nutritional status. The mechanism of EEN action is unclear, but it might involve modulation of the intestinal microbiota. The aim of this study was to evaluate the effects (namely changes in gut microbiota) of preoperative EEN in adults with complicated CD referred to surgery. MethodsThis was a prospective study of adult patients with CD referred to surgery. Patients with body mass index <18.5 kg/m2, weight loss >10 %, serum albumin <3 g/dL, or a combination of some or all three, received EEN for ≥2 wk. The effects of EEN on clinical (Harvey–Bradshaw Index [HBI]) and laboratory markers (C-reactive protein [CRP], serum albumin, and fecal calprotectin) and fecal microbiota were analyzed after EEN (before surgery) and 6 mo later. We used 16 S rRNA gene sequencing to determine changes in the fecal microbiota. ResultsFifteen patients were included, of whom 60% were men with a mean age of 45.4 ± 19.1 y. Of those, 10 received EEN. The median duration of preoperative EEN was 41.5 d (15–70 d). During EEN, there was a significant reduction in mean HBI (8.7 ± 1.9 versus 4.1 ± 2.4; P = 0.001) and CRP (11.7 ± 10.3 versus 0.8 ± 0.8 mg/dL; P = 0.008) and an increase in serum albumin (3.1 ± 0.6 versus 4 ± 0.6 g/dL; P = 0.022). Two patients did not require surgery after EEN. The overall microbial composition changed after EEN (Permutational analysis of variance test, P = 0.046) and there was a significant reduction in α diversity (8 ± 2.3 versus 5.2 ± 1.5; P = 0.023). EEN significantly changed the relative abundance of 11 taxonomic operational units (OTUs). At the family level, we found this was mainly due to the decrease in the Enterobacteriaceae family (7 OTUs). Six months after surgery, α diversity was not different from that before or after EEN; at this time point 6 OTUs were significantly different, mainly due to the decrease of Clostridiales order (3 OTUs). The incidence of postoperative complications and hospital length of stay were similar in EEN and immediate surgery groups, as well as clinical and endoscopic recurrence rates 6 mo after surgery. ConclusionsPreoperative EEN improved disease activity and nutritional status in patients with CD referred to surgery. Despite being malnourished, patients given EEN did not have increased postoperative complications compared with well-nourished patients. During EEN, overall microbiota composition changed and α diversity decreased. EEN did not influence postoperative recurrence and gut microbiota 6 mo after surgery.

Quality and consumer properties of bread baked from mixture of rye and wheat flour using iodine-containing additives

Nowadays the state policy in the field of healthy nutrition of the population pays special attention to the development, production and sale of functional products with the purpose of preservation and promotion of health of the population, prevention of diseases, including those caused by defective and unbalanced nutrition of children and adults. The enrichment of bread with iodine is effective and safe, technologically feasible, has a minimal impact on the price of products. The bread production according to the experimental variants was carried out by the method of test laboratory baking, followed by the assessment by quality indicators according to generally accepted methods. Iodine additives were added during the mixing of the dough with liquid components. It was established that iodine-containing raw materials had an ambiguous effect on the overall baking evaluation of bread baked from wheat-rye flour with the addition of iodine-containing raw materials. With each stage of the technological process, a gradual decrease in the iodine content in all samples occurs due to the influence of various temperatures and mechanical stress. Bread with the addition of iodine casein after kneading contains 147.75 micrograms of iodine, after proofing – 126.64 micrograms, and after baking – 94.99 micrograms. During storage, a similar situation is observed, for example, after 24 hours of storage the bread with the addition of iodinedar contains 68.43 ng. and after 48 hours – 59.77 gg.