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1.
Public Health Nutr ; 17(12): 2660-6, 2014 Dec.
Article in English | MEDLINE | ID: mdl-24477178

ABSTRACT

OBJECTIVE: Current indices of diet quality generally include intakes of specific foods or nutrients. We sought to develop an index that discriminates healthy and unhealthy eating choices for use in large surveys as a short questionnaire and as a measure in existing studies with adequate dietary data. DESIGN: The Eating Choices Index (ECI) score included four components: (i) consumption of breakfast, (ii) consumption of two portions of fruit per day, (iii) type of milk consumed and (iv) type of bread consumed, each providing a score from 1 to 5. In analysis of 5 d food records, the ECI score was examined in relation to macronutrients, fibre, vitamin C, Fe, Ca and folate using Pearson correlations. Variation with sex, BMI, socio-economic status, marital status, smoking status and physical activity were also investigated. SETTING: Medical Research Council National Survey of Health and Development. SUBJECTS: Individuals (n 2256) aged 43 years. RESULTS: The ECI score (mean 12·3 (sd 3·5)) was significantly positively associated with protein, carbohydrate, fibre, vitamin C, Fe, Ca and folate (r = 0·2-0·5; P < 0·001) and significantly negatively associated with fat intake (r = -0·2; P < 0·001); ECI scores were not correlated with total energy intake. Individuals with a lower ECI score were more likely to be men (P < 0·001), overweight or obese (P < 0·001), have lower socio-economic status (P < 0·001), smoke more (P < 0·001) and be less physically active (P < 0·001). CONCLUSIONS: ECI scores correlated with nutrient profiles consistent with a healthy diet. It provides a simple method to rank diet healthiness in large observational studies.


Subject(s)
Breakfast , Choice Behavior , Diet/standards , Feeding Behavior , Food , Health Behavior , Adult , Animals , Bread , Diet Surveys , Dietary Fiber/administration & dosage , Female , Fruit , Humans , Male , Middle Aged , Milk , Obesity/etiology , Sex Factors , Social Class , Surveys and Questionnaires
2.
Am J Clin Nutr ; 99(2): 361-8, 2014 Feb.
Article in English | MEDLINE | ID: mdl-24284440

ABSTRACT

BACKGROUND: The association between breakfast consumption and physical activity (PA) is inconclusive. OBJECTIVE: We aimed to investigate daily associations and hourly patterns of PA and breakfast consumption in British adolescents. DESIGN: Daily PA [accelerometry-derived moderate and vigorous physical activity (MVPA)] and breakfast consumption (diet diary) were measured simultaneously over 4 d in 860 adolescents (boys: 43.4%; mean ± SD age: 14.5 ± 0.5 y). Associations between MVPA and breakfast consumption were assessed by using a multilevel mixed-effects logistic regression separately by sex and for weekends and weekdays. Hourly patterns of MVPA by breakfast consumption status were displayed graphically, and differences were tested by using ANOVA. Multilevel linear regression was used to investigate differences in log MVPA on days when 570 inconsistent breakfast consumers ate or skipped breakfast. RESULTS: On weekends, boys and girls with higher MVPA were more likely to eat breakfast [OR (95% CI): boys, 1.78 (1.30, 2.45) (P < 0.001); girls, 2.30 (1.66, 3.08) (P < 0.001)] when adjusted for socioeconomic status, percentage of body fat, and total energy intake. Peak hourly MVPA differed for breakfast consumers compared with nonconsumers on weekends (P < 0.001). Inconsistent breakfast consumers did more MVPA on days when they ate breakfast [exponentiated ß coefficients (95% CIs): 1.2 (1.0, 1.5) on weekdays and 1.4 (1.1, 1.8) on weekends for boys and 1.6 (1.3, 2.1) on weekends for girls; all P < 0.03]. CONCLUSIONS: Eating breakfast was associated with higher MVPA on weekends. The time of peak MVPA differed between breakfast consumers and nonconsumers on weekends. Breakfast consumption at weekends is worth additional investigation to potentially inform PA promotion in adolescents.


Subject(s)
Breakfast , Feeding Behavior , Motor Activity , Accelerometry , Adolescent , Body Mass Index , Cross-Sectional Studies , Energy Intake , Female , Health Behavior , Humans , Logistic Models , Longitudinal Studies , Male , Multilevel Analysis , Nutrition Assessment , Socioeconomic Factors
3.
Public Health Nutr ; 16(11): 1912-23, 2013 Nov.
Article in English | MEDLINE | ID: mdl-23920151

ABSTRACT

OBJECTIVE: Few studies have considered the combined effects of home-related determinants on children's diet. The present study investigated independent associations between sociodemographic and food practice (SFP) characteristics and fruit and vegetable consumption in U.K. children and the combined effects of SFP on consumption using pattern analysis. DESIGN: Diet was assessed using 4 d food diaries, SFP were collected using computer-assisted personal interview. Linear regressions were used to test associations; principal component analysis was used to identify patterns of SFP characteristics. Regression of fruit (g/d) and vegetables (g/d) v. component scores of each pattern were performed. SETTING: U.K. National Diet and Nutrition Survey Rolling Programme (2008­2010). SUBJECTS: Children aged 1.5­10 years (n 642). RESULTS: Significant associations were found between fruit and vegetable consumption and household socio-economic status. Pattern 1, which was positively correlated with household structure characteristics, was associated with increased fruit consumption (P < 0.001). Pattern 2, characterised by positive correlations for socio-economic status, fruit availability and organic food purchase, and negatively correlated with household size and the number of children per household, was associated with higher fruit and vegetable consumption (both P < 0.001). Pattern 3, characterised by high frequency of eating out and eating takeaway, was associated with a lower consumption of both fruit (P < 0.012) and vegetables (P < 0.023). CONCLUSIONS: Patterns of SFP determinants may be more informative than individual characteristics in relation to dietary outcomes. Results have public health implications on the healthfulness of meals eaten out of home and in takeaways, as well as the need to reduce diet inequality in larger households with lower socio-economic status.


Subject(s)
Diet/standards , Family Characteristics , Feeding Behavior , Fruit , Health Behavior , Social Class , Vegetables , Child , Child, Preschool , Diet Records , Diet Surveys , Fast Foods , Female , Food, Organic , Humans , Infant , Linear Models , Male , United Kingdom
4.
J Hypertens ; 31(5): 882-92, 2013 May.
Article in English | MEDLINE | ID: mdl-23385650

ABSTRACT

OBJECTIVES: The role of circadian rhythm of energy and macronutrient intake in influencing cardiometabolic risk factors is increasingly recognized. However, little is known of the association between time of energy intake and blood pressure. We examined the association between time-of-day of energy intake and subsequent hypertension and change in blood pressure. METHODS: The analysis included 517 men and 635 women from the 1946 British birth cohort. Diet was assessed using 5-day estimated diaries. Diaries were divided into seven meal slots: breakfast, mid-morning, lunch, mid-afternoon, dinner, late evening and extras. Time-of-day of energy intake at age 43 years was related to hypertension prevalence at 43 years and incidence at age 53 years and 10-year changes in SBP and DBP using logistic regression and censored regression controlling for medication use. RESULTS: Cohort members in the highest quintile of energy intake at breakfast at age 43 years had 30% lower odds of hypertension prevalence compared with those in the lowest. Cohort members in the highest quintile of energy intake at late evening had higher odds of incident hypertension at age 53 years [odds ratio = 1.55; 95% confidence interval (CI) 0.93-2.61; P for linear trend = 0.052]. Compared to the lowest quintile, the highest quintile of energy intake late in the evening was related to a greater rise in SBP (ß = 5.09; 95% CI 1.25-8.93) and DBP (43-53 years) (ß = 2.08; 95%CI 0.27-5.32). CONCLUSION: Higher energy intake at breakfast is associated with lower hypertension prevalence. Greater energy intake late in the evening is associated with higher hypertension prevalence, incidence and greater increases in blood pressure.


Subject(s)
Blood Pressure , Energy Intake , Hypertension/epidemiology , Adult , Blood Pressure Monitoring, Ambulatory , Chronotherapy , Cohort Studies , England/epidemiology , Female , Humans , Incidence , Male , Middle Aged , Suprachiasmatic Nucleus/physiology , Time Factors
5.
Public Health Nutr ; 16(6): 1118-25, 2013 Jun.
Article in English | MEDLINE | ID: mdl-21899789

ABSTRACT

OBJECTIVE: To compare food and nutrient intakes from midday meals provided by schools with those from packed lunches and to estimate the contribution from food eaten at midday to the total daily energy and nutrient intakes of teenagers. DESIGN: Dietary data were recorded in 4 d estimated diaries of which 2 d were school days. The school day data were analysed for total and midday energy and nutrient intakes. The latter were compared with the recommendations of the Caroline Walker Trust (CWT). SETTING: Cambridgeshire, UK, 2006. SUBJECTS: Teenagers (n 757) aged 14-15 years, from eighteen secondary schools, who reported food eaten at school. RESULTS: The contribution to total daily energy intake from all lunches eaten at school was 29 % (boys) and 28 % (girls). School meals provided greater quantities of protein, starch, carotene and folate but also more saturated fats and Na than packed lunches. Intakes of energy and several nutrients fell below the CWT recommendations for both types of lunch. School meals and packed lunches provided different types of foods; greater quantities of rice, pasta and vegetables in school meals; more yoghurt, cheese, fruit and juices but also more confectionery and soft drinks in packed lunches. CONCLUSIONS: There has been concern that schoolchildren who are not opting for lunch provided by schools are compromising the overall quality of their diet, but the present study showed small differences in nutrient content between packed and school lunches. These data were collected in 2005­2007 before the government programme of improvements reached secondary schools.


Subject(s)
Diet/standards , Energy Intake , Food Preferences , Food Services , Lunch , Micronutrients/administration & dosage , Schools , Adolescent , Female , Health Behavior , Humans , Male , Nutritive Value , United Kingdom
6.
Int J Behav Nutr Phys Act ; 9: 126, 2012 Oct 18.
Article in English | MEDLINE | ID: mdl-23078656

ABSTRACT

BACKGROUND: Eating context is the immediate environment of each eating occasion (EO). There is limited knowledge on the effects of the eating context on food consumption in children, due to the difficulty in measuring the multiple eating contexts children experience throughout the day. This study applied ecological momentary assessment using food diaries to explore the relationships between eating context and fruit and vegetable consumption in UK children. METHODS: Using 4 d unweighed food diaries, data were collected for 642 children aged 1.5-10y in two years of the UK National Diet and Nutrition Survey (2008-2010). Participants recorded all foods and drinks consumed at each EO, where and with whom the food was consumed, whether the TV was on and if eaten at a table. Mixed logistic regression and mixed multinomial logistic regression were used to calculate associations between eating contexts and fruit and vegetables (FV) consumed by quartiles. RESULTS: Of 16,840 EOs, 73% took place at home and 31% with parents only. Frequency of eating alone and with friends increased with age. Compared to eating at home, children aged 1.5-3y were more likely to consume fruit at care outside home (>10-50g OR:2.39; >50-100g OR:2.12); children aged 4-6y were more likely to consume fruit (>50-100g OR:3.53; >100g OR:1.88) and vegetables at school (>30-60g OR:3.56). Compared to eating with parents only, children aged 1.5-3y were more likely to consume fruit with friends (>10-50g OR:2.69; >50-100g OR:3.49), and with carer and other children/others (>10-50g OR:2.25); children aged 4-6y were more likely to consume fruit (>50-100g OR:1.96) and vegetables with friends (>30-60g OR:3.56). Children of all ages were more likely to eat vegetables when the TV was off than on and at a table than not at table. CONCLUSIONS: The use of food diaries to capture multiple eating contexts and detailed fruit and vegetable consumption data was demonstrated at a population level. Higher odds of FV consumption were seen from structured settings such as school and care outside home than at home, as well as when eating at a table and the TV off. This study highlights eating contexts where provision of fruit and vegetables could be improved, especially at home. Future research should take eating context into consideration when planning interventions to target children's food consumption and eating behaviour.


Subject(s)
Diet Records , Feeding Behavior , Nutrition Surveys , Child , Child, Preschool , Diet , Female , Fruit , Humans , Infant , Logistic Models , Male , Meals , Nutrition Assessment , Odds Ratio , Parents , Schools , Surveys and Questionnaires , Television , United Kingdom , Vegetables
7.
Eur J Nutr ; 51(5): 583-91, 2012 Aug.
Article in English | MEDLINE | ID: mdl-21877233

ABSTRACT

PURPOSE: We aimed to examine the association between intake of different subgroups of dairy products and blood pressure and incident hypertension 10 years later, adjusting for confounding factors. METHODS: We studied 1,750 British men and women from the 1946 British birth cohort from 1989 to 1999 (age 43 and 53 years, respectively). Diet was assessed by 5-day food diaries using photographs in the estimation of portion size. Systolic (sbp) and diastolic (dbp) blood pressure and prevalent hypertension were assessed at age 43 and 53 years. Linear regression and logistic regression were used to examine 10-year blood pressure levels and incident hypertension by baseline dairy intake. RESULTS: There was a weak non-significant trend of a protective effect of total dairy intake on blood pressure and incident hypertension, but no evidence for a dose-response relationship (OR for incident hypertension: 0.88 (95% CI 0.68;1.14) 2nd vs. 1st tertile and 0.93 (95% CI 0.72;1.18) 3rd vs. 1st tertile). Higher intake of low-fat and fermented dairy was linked to a higher sbp but in a nonlinear manner. Adjustment for other dietary factors, health behaviours and BMI attenuated these associations. CONCLUSIONS: Total dairy intake and specific dairy subgroups were not associated with blood pressure and incident hypertension among a representative sample of British adults after adjustment for confounding factors.


Subject(s)
Blood Pressure , Dairy Products/adverse effects , Hypertension/epidemiology , Adult , Blood Pressure Determination/statistics & numerical data , Cohort Studies , Diet , Female , Humans , Incidence , Linear Models , Logistic Models , Male , Middle Aged , Multivariate Analysis , Nutrition Assessment , Risk Factors , Socioeconomic Factors , United Kingdom/epidemiology , White People
8.
Br J Nutr ; 107(3): 405-15, 2012 Feb.
Article in English | MEDLINE | ID: mdl-21767448

ABSTRACT

High saturated fat intake is an established risk factor for several chronic diseases. The objective of the present study is to report dietary intakes and main food sources of fat and fatty acids (FA) from the first year of the National Diet and Nutrition Survey (NDNS) rolling programme in the UK. Dietary data were collected using 4 d estimated food diaries (n 896) and compared with dietary reference values (DRV) and previous NDNS results. Total fat provided 34-36 % food energy (FE) across all age groups, which was similar to previous surveys for adults. Men (19-64 years) and older girls (11-18 years) had mean intakes just above the DRV, while all other groups had mean total fat intakes of < 35 % FE. SFA intakes were lower compared with previous surveys, ranging from 13 to 15 % FE, but still above the DRV. Mean MUFA intakes were 12·5 % FE for adults and children aged 4-18 years and all were below the DRV. Mean n-3 PUFA intake represented 0·7-1·1 % FE. Compared with previous survey data, the direction of change for n-3 PUFA was upwards for all age groups, although the differences in absolute terms were very small. Trans-FA intakes were lower than in previous NDNS and were less than 2 g/d for all age groups, representing 0·8 % FE and lower than the DRV in all age groups. In conclusion, dietary intake of fat and FA is moving towards recommended levels for the UK population. However, there remains room for considerable further improvement.


Subject(s)
Dietary Fats/administration & dosage , Fatty Acids/administration & dosage , Adolescent , Adult , Age Factors , Aged , Child , Cross-Sectional Studies , Diet Records , Energy Intake , Fatty Acids, Monounsaturated/administration & dosage , Fatty Acids, Omega-3/administration & dosage , Female , Health Promotion , Health Surveys/methods , Humans , Infant , Male , Nutrition Policy , Trans Fatty Acids/administration & dosage , United Kingdom
9.
Br J Nutr ; 106(12): 1899-914, 2011 Dec.
Article in English | MEDLINE | ID: mdl-21736781

ABSTRACT

The National Diet and Nutrition Survey (NDNS) is a cross-sectional survey designed to gather data representative of the UK population on food consumption, nutrient intakes and nutritional status. The objectives of the present paper were to identify and describe food consumption and nutrient intakes in the UK from the first year of the NDNS rolling programme (2008-09) and compare these with the 2000-01 NDNS of adults aged 19-64 years and the 1997 NDNS of young people aged 4-18 years. Differences in median daily food consumption and nutrient intakes between the surveys were compared by sex and age group (4-10 years, 11-18 years and 19-64 years). There were no changes in energy, total fat or carbohydrate intakes between the surveys. Children aged 4-10 years had significantly lower consumption of soft drinks (not low calorie), crisps and savoury snacks and chocolate confectionery in 2008-09 than in 1997 (all P < 0·0001). The percentage contribution of non-milk extrinsic sugars to food energy was also significantly lower than in 1997 in children aged 4-10 years (P < 0·0001), contributing 13·7-14·6 % in 2008-09 compared with 16·8 % in 1997. These changes were not as marked in older children and there were no changes in these foods and nutrients in adults. There was still a substantial proportion (46 %) of girls aged 11-18 years and women aged 19-64 years (21 %) with mean daily Fe intakes below the lower reference nutrient intake. Since previous surveys there have been some positive changes in intakes especially in younger children. However, further attention is required in other groups, in particular adolescent girls.


Subject(s)
Diet Surveys , Nutrition Surveys , Adolescent , Adult , Child , Child, Preschool , Cross-Sectional Studies , Eating , Female , Humans , Male , Middle Aged , Nutritional Status , United Kingdom , Young Adult
10.
Am J Clin Nutr ; 92(4): 776-83, 2010 Oct.
Article in English | MEDLINE | ID: mdl-20739425

ABSTRACT

BACKGROUND: Ischemic heart disease (IHD) rates are lower in UK black Africans and black Caribbeans and higher in South Asians when compared with white Europeans. Ethnic differences in lipid concentrations may play a part in these differences. OBJECTIVE: The objective was to investigate blood lipid and dietary patterns in UK children from different ethnic groups. DESIGN: This was a cross-sectional study in 2026 UK children (including 285 black Africans, 188 black Caribbeans, 534 South Asians, and 512 white Europeans) attending primary schools in London, Birmingham, and Leicester. We measured fasting blood lipid concentrations and collected 24-h dietary recalls. RESULTS: In comparison with white Europeans, black African children had lower total cholesterol (-0.14 mmol/L; 95% CI: -0.25, -0.04 mmol/L), LDL-cholesterol (-0.10 mmol/L; 95% CI: -0.20, -0.01 mmol/L), and triglyceride concentrations (proportional difference: -0.11 mmol/L; 95% CI: -0.16, -0.06 mmol/L); HDL-cholesterol concentrations were similar. Lower saturated fat intakes (-1.4%; 95% CI: -1.9%, -0.9%) explained the differences between total and LDL cholesterol. Black Caribbean children had total, LDL-cholesterol, HDL-cholesterol, and triglyceride concentrations similar to those for white Europeans, with slightly lower saturated fat intakes. South Asian children had total and LDL-cholesterol concentrations similar to those for white Europeans, lower HDL-cholesterol concentrations (-0.7 mmol/L; 95% CI: -0.11, -0.03 mmol/L), and elevated triglyceride concentrations (proportional difference: 0.14 mmol/L; 95% CI: 0.09, 0.20 mmol/L); higher polyunsaturated and monounsaturated fat intakes did not explain these lipid differences. CONCLUSIONS: Only black African children had a blood lipid profile and associated dietary pattern likely to protect against future IHD. The loss of historically lower LDL-cholesterol concentrations among UK black Caribbeans and South Asians may have important adverse consequences for future IHD risk in these groups.


Subject(s)
Asian People , Black People , Lipids/blood , White People , Body Height , Body Weight , Child , Cholesterol/blood , Cholesterol, LDL/blood , Energy Intake , England , Ethnicity , Humans , Myocardial Ischemia/blood , Myocardial Ischemia/epidemiology , Skinfold Thickness , Social Class , Triglycerides/blood , United Kingdom
11.
Br J Nutr ; 103(2): 274-80, 2010 Jan.
Article in English | MEDLINE | ID: mdl-19825206

ABSTRACT

An investigation was carried out to determine whether there were significant changes in the intake of dietary fibre (NSP) and phytate of adult men and women in the UK from 1982 (aged 36 years) to 1999 (aged 53 years). The 1253 subjects studied were members of the Medical Research Council National Survey of Health and Development; a longitudinal study of a nationally representative cohort of births in 1946. Food intake was recorded in a 5 d diary at age 36 years in 1982, 43 years in 1989 and 53 years in 1999. The food composition database was amended with revised values for phytate. Outcome measures were mean intakes of total NSP and phytate by year, sex and food source. There were significant changes in total NSP and phytate intake over the three time points. Intakes of NSP rose significantly between 1982 and 1999 for men and women but phytate intakes rose significantly only between 1989 and 1999. Cereal foods were the most important source of both NSP and phytate. Between 1989 and 1999 there was a significant increase in the contribution from pasta, rice and other grains. The present study shows that an increase in dietary fibre that is in accordance with dietary guidelines would almost inevitably be accompanied by a rise in phytate. The increased dietary phytate is discussed in relation to its recognised inhibition of mineral absorption and its merits with regard to protection against some cancers and other diseases of an ageing population.


Subject(s)
Diet Records , Diet Surveys , Dietary Fiber , Edible Grain , Phytic Acid , Adult , Bread , Cohort Studies , Female , Fruit , Humans , Male , Middle Aged , Oryza , Solanum tuberosum , United Kingdom
12.
Br J Nutr ; 102(8): 1195-202, 2009 Oct.
Article in English | MEDLINE | ID: mdl-19538810

ABSTRACT

Few studies have investigated the absorption of phylloquinone (vitamin K1). We recruited twelve healthy, non-obese adults. On each study day, fasted subjects took a capsule containing 20 microg of 13C-labelled phylloquinone with one of three meals, defined as convenience, cosmopolitan and animal-oriented, in a three-way crossover design. The meals were formulated from the characteristics of clusters identified in dietary pattern analysis of data from the National Diet and Nutrition Survey conducted in 2000-1. Plasma phylloquinone concentration and isotopic enrichment were measured over 8 h. Significantly more phylloquinone tracer was absorbed when consumed with the cosmopolitan and animal-oriented meals than with the convenience meal (P = 0.001 and 0.035, respectively). Estimates of the relative availability of phylloquinone from the meals were: convenience meal = 1.00; cosmopolitan meal = 0.31; animal-oriented meal = 0.23. Combining the tracer data with availability estimates for phylloquinone from the meals provides overall relative bioavailability values of convenience = 1.00, cosmopolitan = 0.46 and animal-oriented = 0.29. Stable isotopes provide a useful tool to investigate further the bioavailability of low doses of phylloquinone. Different meals can affect the absorption of free phylloquinone. The meal-based study design used in the present work provides an approach that reflects more closely the way foods are eaten in a free-living population.


Subject(s)
Vitamin K 1/blood , Vitamins/blood , Adult , Biological Availability , Carbon Isotopes , Cross-Over Studies , Diet , Female , Food Analysis/methods , Humans , Male , Middle Aged , Vitamin K 1/analysis , Vitamins/analysis , Young Adult
13.
Public Health Nutr ; 12(2): 166-74, 2009 Feb.
Article in English | MEDLINE | ID: mdl-18503720

ABSTRACT

BACKGROUND: Lower levels of B vitamins (particularly folate, vitamin B12 and vitamin B6) may be associated with psychological distress. Little is known about the impact of childhood nutrition on psychological distress in adult life. OBJECTIVE: We investigated whether prospectively measured childhood and adult dietary intakes of thiamin, riboflavin, niacin, folate, vitamin B6 and vitamin B12 were related to the psychological distress of women in mid-age, taking into account socio-economic, behavioural and lifestyle factors. DESIGN: Prospective data were collected from a cohort of 636 British women followed up since their birth in 1946. Participants completed a 28-item, scaled version of the General Health Questionnaire (GHQ-28) to measure psychological distress at age 53 years. Dietary intakes in childhood (at age four) were determined by 24h recall and in adulthood (at age 36, 43 and 53 years) by a 5d food record. RESULTS: Low dietary vitamin B12 intake at age 53 was associated with higher psychological distress at that age. Women in the lowest third of vitamin B12 intake in adulthood had a higher GHQ-28 score compared with those in the highest third (percentage change, adjusted regression coefficient, 21 (95% CI 3, 39)). There were no other significant associations between dietary B vitamin intake in childhood or adulthood and psychological distress in the cohort. CONCLUSIONS: Overall, there is evidence that intake of vitamin B12 at age 53 is related to adult psychological distress but there is no evidence for the effects of other adult B vitamin intakes or childhood intakes on psychological distress.


Subject(s)
Child Nutritional Physiological Phenomena/physiology , Diet/psychology , Diet/standards , Nutritional Status , Stress, Psychological/epidemiology , Vitamin B Complex/administration & dosage , Adolescent , Adult , Child , Child, Preschool , Cohort Studies , Female , Folic Acid/administration & dosage , Humans , Life Style , Longitudinal Studies , Male , Mental Health , Middle Aged , Niacin/administration & dosage , Nutrition Surveys , Prospective Studies , Riboflavin/administration & dosage , Socioeconomic Factors , Surveys and Questionnaires , Thiamine/administration & dosage , United Kingdom , Vitamin B 12/administration & dosage , Vitamin B 6/administration & dosage , Young Adult
14.
J Bone Miner Res ; 22(4): 509-19, 2007 Apr.
Article in English | MEDLINE | ID: mdl-17243866

ABSTRACT

UNLABELLED: Dietary supplementation with vitamin K(1), with vitamin D(3) and calcium or their combination, was examined in healthy older women during a 2-year, double-blind, placebo-controlled trial. Combined vitamin K with vitamin D plus calcium was associated with a modest but significant increase in BMC at the ultradistal radius but not at other sites in the hip or radius. INTRODUCTION: The putative beneficial role of high dietary vitamin K(1) (phylloquinone) on BMD and the possibility of interactive benefits with vitamin D were studied in a 2-year double-blind, placebo-controlled trial in healthy Scottish women > or =60 years of age. MATERIALS AND METHODS: Healthy, nonosteoporotic women (n = 244) were randomized to receive either (1) placebo, (2) 200 microg/day vitamin K(1), (3) 10 microg (400 IU) vitamin D(3) plus 1000 mg calcium/day, or (4) combined vitamins K(1) and D(3) plus calcium. Baseline and 6-month measurements included DXA bone mineral scans of the hip and wrist, markers of bone turnover, and vitamin status. Supplementation effects were tested using multivariate general linear modeling, with full adjustment for baseline and potential confounding variables. RESULTS: Significant bone mineral loss was seen only at the mid-distal radius but with no significant difference between groups. However, women who took combined vitamin K and vitamin D plus calcium showed a significant and sustained increase in both BMD and BMC at the site of the ultradistal radius. Serum status indicators responded significantly to respective supplementation with vitamins K and D. Over 2 years, serum vitamin K(1) increased by 157% (p < 0.001), the percentage of undercarboxylated osteocalcin (%GluOC) decreased by 51% (p < 0.001), serum 25-hydroxyvitamin D [25(OH)D] increased by 17% (p < 0.001), and PTH decreased by 11% (p = 0.049). CONCLUSIONS: These results provide evidence of a modest synergy in healthy older women from nutritionally relevant intakes of vitamin K(1) together with supplements of calcium plus moderate vitamin D(3) to enhance BMC at the ultradistal radius, a site consisting of principally trabecular bone. The substantial increase in gamma-carboxylation of osteocalcin by vitamin K may have long-term benefits and is potentially achievable by increased dietary intakes of vitamin K rather than by supplementation.


Subject(s)
Bone Density/drug effects , Calcium, Dietary/administration & dosage , Cholecalciferol/administration & dosage , Vitamin K 1/administration & dosage , Absorptiometry, Photon , Aged , Calcifediol/blood , Double-Blind Method , Drug Synergism , Drug Therapy, Combination , Female , Humans , Middle Aged , Osteocalcin/chemistry , Osteocalcin/metabolism , Pelvic Bones/drug effects , Pelvic Bones/metabolism , Radius/drug effects , Radius/metabolism , Vitamin K 1/blood
15.
Am J Clin Nutr ; 83(6): 1420-8, 2006 Jun.
Article in English | MEDLINE | ID: mdl-16789345

ABSTRACT

BACKGROUND: Evidence is increasing for positive effects of fruit and vegetable intakes on bone health. However, most of the studies to date were conducted in adults, and few reports included adolescents. OBJECTIVE: We explored the association between bone mineral status and fruit and vegetable intakes in adolescent boys and girls (aged 16-18 y), young women (aged 23-37 y), and older men and women (aged 60-83 y). DESIGN: Bone mineral measurements of the whole body, hip, and spine were made in all subjects by using dual-energy X-ray absorptiometry. Information on health and lifestyle and physical activity was obtained by questionnaire. Fruit, vegetable, and nutrient intakes were ascertained from 7-d food diaries. RESULTS: In adolescent boys and girls and older women, significant positive associations were observed between spine size-adjusted bone mineral content (SA-BMC) and fruit intake. In boys only, femoral neck SA-BMC was also significantly and positively associated with the intakes of both fruit and dietary vitamin C. No significant associations were found in the young women or older men, or between bone measurements and intake of vegetables alone (after adjustments) in any of the groups. CONCLUSIONS: Higher fruit and vegetable intakes may have positive effects on bone mineral status in both younger and older age groups, especially at the spine and femoral neck. The specific mechanisms remain to be ascertained, but vitamin C, other fruit-specific antioxidants, and lifestyle may play a role.


Subject(s)
Antioxidants/pharmacology , Ascorbic Acid/pharmacology , Bone Density/drug effects , Diet , Fruit , Vegetables , Adolescent , Adult , Age Distribution , Aged , Cross-Sectional Studies , Diet Surveys , Energy Intake , Female , Humans , Life Style , Male , Middle Aged , Multicenter Studies as Topic , Sex Distribution
16.
J Nutr ; 135(7): 1782-9, 2005 Jul.
Article in English | MEDLINE | ID: mdl-15987865

ABSTRACT

Use of dietary supplements may be one of a number of health-related behaviors that cluster together. The current study investigated the underlying diet, health-related characteristics, and behaviors of users and nonusers of dietary supplements in a longitudinal study of health. Participants (n = 1776) completed a 5-d food diary including information on dietary supplement use (vitamins, minerals, and nutraceuticals) at age 53 y. Sociodemographic information and data on smoking, alcohol, and physical activity were obtained along with anthropometric measurements, blood pressure, and a blood sample (nonfasting subjects). A significantly greater percentage of women reported supplement use compared with men (45.1 vs. 25.2%). Supplement use was associated with lower BMI, lower waist circumference, higher plasma folate and plasma vitamin B-12 concentrations, nonsmoking, participation in physical activity, and nonmanual social class in women and with plasma folate concentrations and participation in physical activity in men. Nonsupplement users tended to be nonconsumers of breakfast cereals, fruit, fruit juice, yogurt, oily fish, and olive oil and had lower dietary intakes of potassium, magnesium, phosphorus, iron, and vitamin C even after adjustment for sociodemographic and behavioral factors. Overall, supplement users tended to differ from nonsupplement users on a range of health-related behaviors and health status indicators, although there were fewer significant associations in men. Similarly, dietary supplements users tended to have underlying diets that, were healthier and those taking supplements may be the least likely to need them. These results support the notion of a clustering of healthy behaviors and cardiovascular risk factors, particularly for women.


Subject(s)
Diet Records , Dietary Supplements , Health Behavior , Health Status , Cohort Studies , Demography , England , Female , Humans , Longitudinal Studies , Male , Middle Aged , Random Allocation , Sex Characteristics , Smoking , Social Class , Socioeconomic Factors , Trace Elements
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