Reference Nutrient Intake Research Articles

Improved Eating Behaviour and Nutrient Intake in Noncompliant Patients with Phenylketonuria after Reintroducing a Protein Substitute: Observations from a Multicentre Study.

Noncompliance is widespread in adults with PKU and is associated with adverse metabolic, nutritional and cognitive abnormalities. Returning to the PKU diet is important for this at-risk population, yet for many this is challenging to achieve. Strategies that ease the return to the PKU diet, while offering nutritional and cognitive advantages, are needed. Twelve PKU adults (33.7 ± 2.6 years), who had been noncompliant for 4.5 years (range: 1 to 11 years), took 33 g of a low-volume, nutrient-enriched, protein substitute daily for 28 days. Outcomes of eating behaviour, nutrient intake and mood were assessed at entry (baseline, days 1–3) and after the intervention period (days 29–31). At baseline, intakes of natural protein and estimated phenylalanine were high (66.4 g and 3318.5 mg, respectively) and intakes of calcium, magnesium, iron, zinc, iodine and vitamin D were below country-specific recommendations. With use of the experimental protein substitute, natural protein and estimated phenylalanine intake declined (p = 0.043 for both). Fat and saturated fat intakes also decreased (p = 0.019 and p = 0.041, respectively), while energy and carbohydrate intake remained unchanged. Micronutrient intake increased (p ≤ 0.05 for all aforementioned) to levels well within reference nutrient intake recommendations. Blood vitamin B12 and vitamin D increased by 19.8% and 10.4%, respectively. Reductions in anxiety and confusion were also observed during the course of the study yet should be handled as preliminary data. This study demonstrates that reintroducing a low-volume, nutrient-enriched protein substitute delivers favourable nutritional and possible mood benefits in noncompliant PKU patients, yet longer-term studies are needed to further confirm this. This preliminary knowledge should be used in the design of new strategies to better facilitate patients’ return to the PKU diet, with the approach described here as a foundation.

Dietary micronutrient intakes among women of reproductive age in Mumbai slums

ObjectivesTo (1) describe micronutrient intakes among women of reproductive age living in Mumbai slums; (2) assess the adequacy of these intakes compared with reference values; (3) identify important dietary sources of micronutrients.Subjects/methodsParticipants were 6426 non-pregnant women aged 16–39 years, registered in a randomised controlled trial of a food-based intervention set in the Bandra, Khar and Andheri areas of Mumbai, India. Cross-sectional quantified food frequency questionnaire (FFQ) data were collected. Vitamin (n = 9) and mineral (n = 6) intakes were calculated and analysed in relation to dietary reference values (DRVs). Important dietary sources were identified for each micronutrient.ResultsMedian intakes of all micronutrients, except vitamin E, were below the FAO/WHO reference nutrient intake (RNI). Intakes of calcium, iron, vitamin A and folate were furthest from the RNI. For seven of the micronutrients, over half of the women had intakes below the lower reference nutrient intake (LRNI); this figure was over 75% for calcium and riboflavin. The majority of women (93%) had intakes below the EAR for 5 or more micronutrients, and 64% for 10 or more. Adolescents had lower intakes than women aged >19 years. Less than 1% of adult women and no adolescents met the EAR for all micronutrients. Animal source foods and micronutrient-rich fruit and vegetables were consumed infrequently.ConclusionsThese women had low intakes of multiple micronutrients, increasing their risk of insufficiency. There is a need to determine the factors causing poor intakes, to direct interventions that improve diet quality and nutritional sufficiency.

Standard v. baby-led complementary feeding: a comparison of food and nutrient intakes in 6-12-month-old infants in the UK.

To compare food and nutrient intakes of infants aged 6-12 months following a baby-led complementary feeding (BLCF) approach and a standard weaning (SW) approach. Participants completed an online questionnaire consisting of sociodemographic questions, a 28 d FFQ and a 24 h dietary recall. UK. Infants (n 134) aged 6-12 months (n 88, BLCF; n 46, SW). There was no difference between weaning methods for the food groups 'fruits', 'vegetables', 'all fish', 'meat and fish', 'sugary' or 'starchy' foods. The SW group was offered 'fortified infant cereals' (P < 0·001), 'salty snacks' at 6-8 months (P = 0·03), 'dairy and dairy-based desserts' at 9-12 months (P = 0·04) and 'pre-prepared baby foods' at all ages (P < 0·001) more often than the BLCF group. The SW group was offered 'oily fish' at all ages (P < 0·001) and 6-8 months (P = 0·01) and 'processed meats' at all ages (P < 0·001), 6-8 months (P = 0·003) and 9-12 months (P < 0·001) less often than the BLCF group. The BLCF group had significantly greater intakes of Na (P = 0·028) and fat from food (P = 0·035), and significantly lower intakes of Fe from milk (P = 0·012) and free sugar in the 6-8 months subgroup (P = 0·03) v. the SW group. Fe intake was below the Reference Nutrient Intake (RNI) for both groups and Na was above the RNI in the BLCF group. Compared with the SW group, the BLCF group was offered foods higher in Na and lower in Fe; however, the foods offered contained less free sugar.

Mobilising vitamin D from adipose tissue: The potential impact of exercise

Vitamin D is lipophilic and accumulates substantially in adipose tissue. Even without supplementation, the amount of vitamin D in the adipose of a typical adult is equivalent to several months of the daily reference nutrient intake (RNI). Paradoxically, despite the large amounts of vitamin D located in adipose tissue, individuals with obesity are often vitamin D deficient according to consensus measures of vitamin D status (serum 25‐hydroxyvitamin D concentrations). Thus, it appears that vitamin D can become ‘trapped’ in adipose tissue, potentially due to insufficient lipolytic stimulation and/or due to tissue dysfunction/adaptation resulting from adipose expansion. Emerging evidence suggests that exercise may mobilise vitamin D from adipose (even in the absence of weight loss). If exercise helps to mobilise vitamin D from adipose tissue, then this could have important ramifications for practitioners and policymakers regarding the management of low circulating levels of vitamin D, as well as chronically low levels of physical activity, obesity and associated health conditions. This perspective led us to design a study to examine the impact of exercise on vitamin D status, vitamin D turnover and adipose tissue vitamin D content (the VitaDEx project). The VitaDEx project will determine whether increasing physical activity (via exercise) represents a potentially useful strategy to mobilise vitamin D from adipose tissue.

Inadequacies of micronutrient intake in normal weight and overweight young adults aged 18-25 years: a cross-sectional study.

This study aims to assess adequacy in micronutrient intake in comparison with reference nutrient intakes (RNI) and to identify differences in intakes between normal weight and overweight individuals. A sample of 542 university students (18-25 years), normal weight (N=369) and overweight (N=173), were included in a cross-sectional study. A three-day diet diary was used to assess energy and nutrient intake. Body mass index (BMI) and waist circumference were measured. Mean dietary vitamin D intake was lower than RNI in both men (4.44μg) and women (5.04μg). Mean intakes of calcium (597.44mg), iron (8.62mg) and folate (171.29mg) were also lower than recommendations in women. Weight status (normal weight versus overweight) was significantly associated with micronutrient intake, and a trend towards a decrease in vitamin and mineral intake with increasing weight was noted. Results suggest the need to increase the intake of some micronutrients to meet the RNI, to ensure optimal health. This study provides a helpful tool to reinforce recommendations and potential health promotion and intervention strategies in university settings and could influence manufacturers involved in new food product development targeted to this young population.

Vitamin B6 in Pediatric Renal Transplant Recipients

Our aim was to assess the vitamin B6 intake and biochemical status in a sample of children who have undergone renal transplantation. A prospective observational study was performed in 10 pediatric renal transplant recipients to determine their vitamin B6 status through dietary assessment and serum Pyridoxal 5'-phosphate (PLP) measurement. Ten children (mean age of 11.9years) had median serum PLP concentrations of 62.45nmol/L (interquartile range ±83.40). Two children (20%) had values above the reference range, and none below. Mean vitamin B6 intake was 138.7% of reference nutrient intake (standard deviation ±35.2%). No children were in receipt of vitamin B6 supplementation. There is no previous literature on vitamin B6 status in children who have undergone renal transplantation. In adult transplant recipients, elevated serum PLP concentrations have been described and ascribed to possible excessive intakes. In this sample, no children appeared biochemically deficient, but 20% had elevated concentrations. Dietary intakes were not excessive, and no children reported oral Vitamin B6 supplementation. Exploration of vitamin B6 metabolism in this population is required.

Biofortified crops for tackling micronutrient deficiencies – what impact are these having in developing countries and could they be of relevance within Europe?

AbstractThe development of crops that by harvest have accumulated higher amounts of a particular micronutrient than standard crops is known as biofortification. Biofortified staple crops such as provitamin A‐biofortified sweet potato (‘orange sweet potato’), zinc‐biofortified rice (‘zinc rice’) and iron‐biofortified beans (‘iron beans’), developed by selective breeding, have been introduced into developing countries with the goal of reducing micronutrient deficiencies. In these settings, micronutrient deficiencies caused by low dietary intakes and exacerbated by inflammation and infection result in considerable morbidity and mortality worldwide. The aim of this review is twofold: (1) to describe the impact of biofortified crops on micronutrient intake, nutritional status and other biological endpoints in developing countries and (2) to consider the relevance of these nutritional effects in other parts of the world such as Europe. Regular consumption of biofortified crops in developing countries where micronutrient deficiency is common has been shown to increase micronutrient intakes and thus help meet the World Health Organization's dietary recommendations. In terms of micronutrient status, most research has been conducted using provitamin A‐biofortified crops (particularly orange sweet potato), with large 2‐ to 3‐year studies indicating increases in plasma retinol, though additional studies measuring change in body stores would provide more definitive evidence. There is some evidence to suggest that iron‐biofortified crops can increase iron status (measured by serum ferritin and total body iron), but further studies are required to demonstrate the efficacy of zinc‐biofortified foods. Intakes of some micronutrients are low in someUKpopulation subgroups (in particular adolescents and young adult women), with sizeable proportions having intakes below the lower reference nutrient intake. There is also evidence of low status for some nutrients (e.g. iron and in particular vitamin D), although the prevalence of iron deficiency is much less, and therefore the consequences less severe, than seen in the developing world. The final part of the paper describes strategies used to improve micronutrient intake in Europe, such as fortification of bread flour post‐harvest and supplementation with vitamin D and folic acid, and discusses whether there is a role for biofortified crops in theUK.

Nutrient composition and dietary diversity of on-site lunch meals, and anthropometry of beneficiary children in private and public primary schools in Ghana.

On-site lunch provided through the Ghana School Feeding Programme is expected to be nutritionally adequate thereby contributing to reducing hunger and malnutrition. The aim of this study was to assess the dietary diversity and nutrient composition of on-site school lunch and estimate the extent to which it met the Food and Agriculture Organization Reference Nutrient Intakes for children aged 3-12 years. In this cross-sectional food consumption survey, on-site lunch menus were reviewed, dietary diversity assessed and meal preparation/serving observed during a typical school week. Three randomly selected portion sizes were weighed and the average weight (grams) entered into the RIING nutrient software to estimate the nutrient composition. Anthropometry of participants enrolled in seven public (n = 113) and six private (n = 216) primary schools in Hohoe municipality, Ghana was analysed using World Health Organization Anthroplus software. The menu consisted largely of energy-dense staples, some vegetables and fish. Eggs, dairy and fruits were never served. Meals served in the public and private schools were statistically similar. Fat (23.8 vs. 27.7 g), iron (3.0 vs. 2.8 mg), vitamins A (417.3 vs. 280.8 µg retinol equivalent) and C (25.1 vs. 16.5 mg) requirements were fully met. Energy (420.6 vs. 462.2 kcal), protein (6.8 vs. 6.8 g), thiamin (0.18 vs. 0.17 mg) and zinc (1.3 vs. 1.2 mg) were 50-75% met. Calcium (62.6 vs. 61.4 mg), riboflavin (0.09 vs. 0.07 mg) and niacin (1.6 vs. 1.3 mg) were 26-37% met. Concerning nutritional status, prevalence of stunting (8.9% vs. 7.9%), underweight (3.6% vs. 5.7%), thinness (1.8% vs. 3.7%) and overweight/obesity (3.5% vs. 4.2%) were also statistically similar. Enhancing dietary diversity is crucial to achieving nutrient-dense school meals.

Micronutrient Intakes of British Adults Across Mid-Life: A Secondary Analysis of the UK National Diet and Nutrition Survey.

Background: There is a tendency to report micronutrients intakes collectively for adults, with broad age ranges being used. This means that certain sub-population groups such as young adults are often overlooked. The objective of the present article was to derive and evaluate micronutrient intakes across UK adults in their twenties, thirties, forties and fifties.Methods: A secondary analysis of the UK National Diet and Nutrition Survey (years 1–6) was undertaken. Data from n = 3,238 adults was analyzed and micronutrient intakes from food sources (excluding supplements) derived as a percentage of the Reference Nutrient Intake (RNI) and percentage below the Lower Reference Nutrient Intake (LRNI) for males and females aged 20–29, 30–39, 40–49, and 50–59 years. Mean intakes were used in instances where this data was unavailable (for vitamins D and E).Results: Sizeable gaps were found for magnesium with 19% of young people in their twenties having intakes below the LRNI. Amongst UK females intakes of 9 micronutrients (riboflavin, vitamin B6, B12, folic acid, calcium, iron, magnesium, potassium, and iodine) were significantly lower than males aged 20–59 years (p < 0.001) expressed as a percentage of the RNI. Young adults in their twenties had significantly lower (p < 0.05) intakes of 8 micronutrients (vitamin A, riboflavin, folic acid, calcium, magnesium, potassium, iodine, and copper) expressed as a percentage of the RNI compared with adults in their thirties, forties and fifties. There were also considerable gaps in dietary selenium intakes with 50.3% females and 25.8% males having total intakes beneath the LRNI. A quarter of women had iron (25.3%) and potassium (24.3%) intakes below the LRNI.Conclusions: UK females and younger adults appear to be particularly vulnerable to micronutrient shortfalls from food sources alone. Clearly, improvements in dietary quality are needed across mid-life. Alongside this, fortification and supplementation strategies may be considered to help adults achieve dietary targets at this life-stage when they should be at their nutritional prime.

Nutrition in the Bin: A Nutritional and Environmental Assessment of Food Wasted in the UK.

The UK currently has the most detailed, directly measured data for food wasted in the home. This includes information on the exact types of food wasted. These data allow calculation of the nutrients within that waste, as well as its environmental impact. The results progress the conversation beyond how much food is wasted or its energy content; it permits the implications for nutrition and sustainability to be assessed in detail. Data for UK household food waste were expressed as an average waste per capita for each type of food. Each food type was matched with an item (or group of items) from the UK Composition of Foods (7th Ed). The level of nutrients wasted was compared to UK Reference Nutrient Intakes (RNIs) for adult women (19–50 years, used as a proxy for general population requirements). The data were normalized into “nutrient days” wasted per capita per year, then into the number of complete diet days (for 21 nutrients plus energy). Results show that approximately 42 daily diets were discarded per capita per year. By individual nutrient, the highest losses were vitamin B12, vitamin C, and thiamin (160, 140, and 130 nutrient days/capita/year, respectively). For protein, dietary energy and carbohydrates, 88, 59, and 53 nutrient days/capita/year, respectively, were lost. Substantial losses were also found for under-consumed nutrients in the UK: calcium, which was mostly lost via bakery (27%) and dairy/eggs (27%). Food folate was mainly lost through fresh vegetables/salads (40%) and bakery (18%), as was dietary fiber (31 and 29%, respectively). Environmental impacts were distributed over the food groups, with wasted meat and fish the single largest contribution. For all environmental impacts studied, the largest contribution came from agricultural production. This paper shows that there are areas where interventions preventing food waste and promoting healthy eating could work together (e.g., encouraging consumption of vegetables or tackling overbuying, especially of unhealthy foods). Food manufacturers and retailers, alongside governments and NGOs, have a key role to minimize waste of environmentally impactful, nutrient-dense foods, for instance, by helping influence people’s behaviors with appropriate formulation of products, packaging, portioning, use of promotions, or public education.

The food multimix concept: harnessing and promoting local composite complementary diets.

Over the past two decades, increasing efforts have been made to find suitable nutritional products for managing particularly moderate forms of malnutrition following acute phase treatment, including the adoption of ready-to-use therapeutic foods. The challenge in meeting nutrient needs of normal growing young children and other vulnerable population groups with scant food supply has led us to explore the use of local, traditional and culturally adaptable food-based complementary foods employing the food multimix (FMM) concept. The present paper examined FMM as a concept to demonstrate how locally available composite complementary recipes were used to create highly nutritious recipes at low cost and improve nutrition among vulnerable individuals. The method employed a food-to-food fortification approach for recipe development making use of the 'nutrient strengths' of candidate ingredients. A range of different food recipes had been developed using a stepwise approach and combinations of foods from different populations and communities and packaged as 100 g recipe powders. Proximate and micronutrient analyses have been undertaken, optimised and the nutrient compositions compared with reference nutrient intakes for target groups. Examples of recipes and their nutrient profiles had been highlighted for different formulations showing different ingredients. Theoretical nutrient values were translated into practice based on data from intervention studies. The FMM approach using locally available food has held promise, and published evidence did indicate that the concept can contribute significantly to long-term food-based solutions to meeting nutrient needs of vulnerable groups in poor communities.

Breakfast consumption and nutrient intakes in 4-18-year-olds: UK National Diet and Nutrition Survey Rolling Programme (2008-2012).

Although breakfast consumption is widely considered to be an important component of a healthy lifestyle, few UK studies have examined differences in nutrient intakes between breakfast consumers and breakfast skippers among children and adolescents. We investigated associations between breakfast skipping in 4-18-year-olds and their nutrient intakes using data from the UK's National Diet and Nutrition Survey Rolling Programme. Dietary data were derived from 4-d estimated food diaries of 802 children aged 4-10 years and 884 children aged 11-18 years (1686 in total). Daily nutrient intakes of children with different breakfast habits were compared by one-way ANCOVA adjusting for relevant covariates (sex, age, ethnicity, equivalised household income and BMI). Within-person analysis was carried out on children with an irregular breakfast habit (n 879) comparing nutrient intakes on breakfast days with those on non-breakfast days using repeated measures ANCOVA. We observed that the overall nutritional profile of the children in terms of fibre and micronutrient intake was superior in frequent breakfast consumers (micronutrients: folate, Ca, Fe and I (P<0·01)) and, for the 4-10 years age group, on breakfast days (micronutrients: folate, vitamin C, Ca and I (P<0·01)). Also, significantly higher proportions of breakfast-consuming children met their reference nutrient intakes of folate, vitamin C, Ca, Fe and I compared with breakfast skippers (χ 2 analysis, P<0·001). Our study adds to the body of data linking breakfast consumption with higher quality dietary intake in school-age children, supporting the promotion of breakfast as an important element of a healthy dietary pattern in children.

Associations between Red Meat Intakes and the Micronutrient Intake and Status of UK Females: A Secondary Analysis of the UK National Diet and Nutrition Survey.

Blanket health messages to lower red meat intakes are being communicated at present. These could have adverse implications on the micronutrient quality of women’s diets. The current paper evaluates the nutritional impact of lower red meat intakes on British women’s micronutrient intakes and status. A secondary analysis of the UK National Diet and Nutrition Survey was undertaken using data from years 2008/2009 to 2011/2012. This was comprised of dietary and blood analyte data from 1384 and 641 females aged 11 to 64 years. Females consuming less than 40 g total red meat daily were more likely to have micronutrient intakes below the Lower Reference Nutrient Intake (LRNI) for zinc, iron, vitamin B12 and potassium and have lower habitual vitamin D intakes than females consuming between 40 and 69 g daily. After adjusting data for energy intake, zinc (% below the LRNI) and vitamin D (μg/day) remained statistically significant (p < 0.001). No significant differences were observed for blood biomarkers. Females consuming diets lower in red meat, i.e., <40 g daily, appear to have reduced micronutrient intakes, especially in the case of zinc and vitamin D. This should be considered when giving blanket advice for whole populations to reduce red meat intakes.

Dietary Micronutrient Intake and Micronutrient Status in Patients With Chronic Stable Heart Failure: An Observational Study.

Observational studies suggest that patients with heart failure have a tendency to a reduced status of a number of micronutrients and that this may be associated with an adverse prognosis. A small number of studies also suggest that patients with heart failure may have reduced dietary intake of micronutrients, a possible mechanism for reduced status. The aims of this study were to assess dietary micronutrient intake and micronutrient status in a group of patients with heart failure. Dietary intake was assessed in 79 outpatients with chronic stable heart failure with a reduced ejection fraction using a validated food frequency questionnaire. Blood concentrations of a number of micronutrients, including vitamin D, were measured in fasting blood samples, drawn at the time of food frequency questionnaire completion. More than 20% of patients reported intakes less than the reference nutrient intake or recommended intake for riboflavin, vitamin D, vitamin A, calcium, magnesium, potassium, zinc, copper, selenium, and iodine. More than 5% of patients reported intakes less than the lower reference nutrient intake or minimum recommended intake for riboflavin, vitamin D, vitamin A, calcium, magnesium, potassium, zinc, selenium, and iodine. Vitamin D deficiency (plasma total 25-hydroxy-vitamin D concentration <50 nmol/L) was observed in 75.6% of patients. Vitamin D deficiency was common in this group of patients with heart failure. Based on self-reported dietary intake, a substantial number of individuals may not have been consuming enough vitamin D and a modest number of individuals may not have been consuming enough riboflavin, vitamin A, calcium, magnesium, potassium, zinc, copper, selenium, or iodine to meet their dietary needs.

Iron Status of Infants and Toddlers Age 6 to 18 Months and Association with Type of Milk Consumed from DNSIYC Secondary Analysis

This study compares the intake of different types of milk, iron, haem iron, non-haem iron, and Vitamin C intake among infant and children age 6-18 months of age from Diet and Nutrition Survey of Infants and Young Children (DNSIYC). Approach SACN 2010 recommendation, the Reference Nutrient Intakes (RNI) of iron and Vitamin C for infant and children age 6-18 months was investigated in this study. Moreover, Ferritin and haemoglobin investigated as well to assess iron status, subjects who donated bloods were included in this study to investigate their iron status, 473 subjects for haemoglobin, and 443 for ferritin. Different factors investigated on 2567 subjects, include age groups, sex, ethnicity, socioeconomic level, maternal education level, and different types of milk consumed. This study found significant difference for ferritin and haemoglobin in different levels, across different types of milk consumed, haemiron, Vitamin C, age groups and maternal education level. While there were no significant differences across sex, ethnicity and socioeconomic level in all age groups.

Increasing dietary protein intake in community dwelling older adults: protocol for a randomised controlled trial and baseline data

Dietary protein has an important impact on health, physical functioning, and muscle mass, and it has been suggested that older adults need more dietary protein than younger adults(1) . Compared to other protein rich foods, eggs are easy to cook, of long shelf life, and low cost; so they may be of help in increasing protein intake in older adults. Reasons for eating or not eating eggs in adults aged 55 years and older were identified in a focus group study(2) and then used to design a structured questionnaire which was sent out to a National sample(3) . Our questionnaire results showed that older adults who eat more eggs report that they think eggs taste good and add variety to the diet. Adding flavour and more variety may encourage intakes in those who consume fewer eggs. A randomized controlled intervention study was designed to increase egg and protein intake, by providing recipes of protein-rich egg-based meals and herbs/spice packets, to encourage the addition of flavour and variety to the diet. Community dwelling adults aged 55 years and over were randomized to receive dietary information followed by either 6 recipes and relevant herbs/spices every fortnight for 3 months, or northing further. Dietary intake (Food Frequency Questionnaire(4) ), body composition (Bioelectrical Impedance Analysis), handgrip strength, and physical performance (Short Physical Performance Battery (SPPB)(5) ) were assessed at baseline, and will be assessed again after the 3-month intervention period and at a 6-month follow up. The study is registered at ClinicalTrials.gov (NCT02777918). All participants have so far completed baseline sessions. A total of 100 participants are taking part - 54 females and 46 males; mean age at baseline was 70 ± 7 years, range 55–97 years. Egg intake was 22 ± 16 eggs per month, which is higher than the National Diet and Nutrition Survey data indicating that British older adults (65yrs+) consume 33 g of eggs and egg dishes per month (equivalent to up to 16–17 eggs). Reported protein intake was 1·24 ± 0·42 g/kg/day. In this sample, 10 % did not meet the Reference Nutrient Intake for all adults of 0·75 g/kg/day, and 50 % did not meet the 1·2 g/kg/day which has been suggested as the protein requirement for older adults(1) . Mean BMI was 27 ± 4 kg/m2 ; lean mass (LM) percentage was 61 ± 6 % for females, and 74 ± 5 % for males; handgrip strength was 25 ± 4 kg for females, and 40 ± 9 kg for males; and SPPB score (0–12) was 9 ± 2. In our sample, 11 % of the females and 9 % of the males could be classified as sarcopenic based on handgrip strength(6) , which is within the estimated range of sarcopenia in community dwelling populations (1–29 % prevalence)(7) . Providing recipes could be a straightforward to implement strategy to encourage older adults to consume more eggs and more protein, which could support good health.

Should healthy people take a vitamin D supplement in winter months?

Getting enough vitamin D to protect musculoskeletal health requires eating the right types of food and getting short bursts of daily sunshine in summer months. However, for many people this...

Calcium to phosphorus ratio, essential elements and vitamin D content of infant foods in the UK: Possible implications for bone health.

Adequate intake of calcium and phosphorus in the appropriate ratio of 1-2:1 (Ca:P), in addition to magnesium and vitamin D, is vital for bone health and development of infants. In this feasibility study, the ratio of Ca:P in conjunction with vitamin D and other essential elements (Cu, Fe, K, Mg, Na, and Zn) in a range of commercial infant food products in the UK was investigated. The elemental analysis was carried out using inductively coupled plasma optical emission spectrometry, and vitamin D levels were determined using an enzyme-linked immunosorbent assay. The quantitative data were further evaluated, based on a standardised menu, to measure the total daily intake of an infant aged 7-12months against the Reference Nutrient Intake. The results from the study show that the Ca:P ratio of the infant's total dietary intake was within the recommended range at 1.49:1. However, the level of intake for each of the nutrients analyzed, with the exception of sodium, was found to be above the Reference Nutrient Intake, which warrants further investigation in relation to both micronutrient interactions and in situations where the intake of fortified infant formula milk is compromised. Finally, as the study is the first to include consumption of infant snack products, the level of total calorie intake was also calculated in order to assess the total daily estimated energy intake; the results indicate that energy intakes exceed recommendations by 42%, which may have implications for obesity.

Micronutrient intake and food sources in the very old: analysis of the Newcastle 85+ Study.

A number of socio-economic, biological and lifestyle characteristics change with advancing age and place very old adults at increased risk of micronutrient deficiencies. The aim of this study was to assess vitamin and mineral intakes and respective food sources in 793 75-year-olds (302 men and 491 women) in the North-East of England, participating in the Newcastle 85+ Study. Micronutrient intakes were estimated using a multiple-pass recall tool (2×24 h recalls). Determinants of micronutrient intake were assessed with multinomial logistic regression. Median vitamin D, Ca and Mg intakes were 2·0 (interquartile range (IQR) 1·2-6·5) µg/d, 731 (IQR 554-916) mg/d and 215 (IQR 166-266) mg/d, respectively. Fe intake was 8·7 (IQR 6·7-11·6) mg/d, and Se intake was 39·0 (IQR 27·3-55·5) µg/d. Cereals and cereal products were the top contributors to intakes of folate (31·5 %), Fe (49·2 %) and Se (46·7 %) and the second highest contributors to intakes of vitamin D (23·8 %), Ca (27·5 %) and K (15·8 %). More than 95 % (n 756) of the participants had vitamin D intakes below the UK's Reference Nutrient Intake (10 µg/d). In all, >20 % of the participants were below the Lower Reference Nutrient Intake for Mg (n 175), K (n 238) and Se (n 418) (comparisons with dietary reference values (DRV) do not include supplements). As most DRV are not age specific and have been extrapolated from younger populations, results should be interpreted with caution. Participants with higher education, from higher social class and who were more physically active had more nutrient-dense diets. More studies are needed to inform the development of age-specific DRV for micronutrients for the very old.

Energy and nutrient intakes of young children in the UK: findings from the Gemini twin cohort.

Data on the diets of young children in the UK are limited, despite growing evidence of the importance of early diet for long-term health. We used the largest contemporary dietary data set to describe the intake of 21-month-old children in the UK. Parents of 2336 children aged 21 months from the UK Gemini twin cohort completed 3-d diet diaries in 2008/2009. Family background information was obtained from questionnaires completed 8 months after birth. Mean total daily intakes of energy, macronutrients (g and %E) and micronutrients from food and beverages, including and excluding supplements, were derived. Comparisons with UK dietary reference values (DRV) were made using t tests and general linear regression models, respectively. Daily energy intake (kJ), protein (g) and most micronutrients exceeded DRV, except for vitamin D and Fe, where 96 or 84 % and 70 or 6 % of children did not achieve the reference nutrient intake or lower reference nutrient intake (LRNI), respectively, even with supplementation. These findings reflect similar observations in the smaller sample of children aged 18-36 months in the National Diet and Nutrition Survey. At a population level, young children in the UK are exceeding recommended daily intakes of energy and protein, potentially increasing their risk of obesity. The majority of children are not meeting the LRNI for vitamin D, largely reflecting inadequate use of the supplements recommended at this age. Parents may need more guidance on how to achieve healthy energy and nutrient intakes for young children.