View clinical trials related to Dietary Modification.
Filter by:The primary aim is to promote healthy lifestyles among young people, through the design and implementation of health promotion activities carried out by adolescents (12-14 years old) to scholars of primary education (8-10 years old), using social marketing and peer-led strategy. The secondary aims are: 1) to increase fruit and vegetable consumption and physical activity practice in scholars and adolescents; 2) to reduce sedentary lifestyles, sugary drinks and fast-food in scholars and adolescents. The EYTO-kids program is a randomized, parallel, intervention program with control group, with a 2 academic courses, 2015-2016 to 2016-2017 (10 months in total), in Reus (Spain). To achieve the aims, social marketing and peer-led methodologies will be used at the intervention design and implementation. Adolescents from secondary education (1st /2nd ESO: Educación Secundaria Obligatoria-Obligatory Secondary Education) will design and implement activities to scholars from primary education (3rd/4th primary education). The adolescents from the intervention group will design and implement activities to implement them in to children, and the control group will not receive any kind of intervention (only the assessment). Participation will occur according to the randomized sample size, where a minimum of 208 adolescents (104 as intervention and 104 as control group), and 602 scholars (301 as intervention and 301 as control group) will be involved. The inclusion criteria are: to have signed informed consent (from mother/father/guardian of the participant), to provide basic demographic data, to assist participating schools and to answer a lifestyle questionnaire.
Leafy vegetables are a natural source of dietary nitrate, which may reduce systolic blood pressure (BP). However, the evidence has been obtained from studies using nitrate solutions (i.e., potassium or sodium nitrate) or beetroot juice supplementation which have a suitable placebo for the design of double-blind clinical trials. However, the design of food-based nutritional interventions is complicated by the fact that an appropriate placebo treatment is not available and, therefore, it is not possible to meet the criteria for proper double-blind randomised placebo-controlled intervention trials. In addition, the biological effects of processed products such as beetroot juice or solutions with a pharmacological grade may be different from that of fresh vegetables, e.g. due to conversion of nitrate to nitrite in the mouth during chewing. Objectives: to investigate whether two sets of lettuce specifically grown with different nitrate content but otherwise similar composition show different effects on nitrate uptake and bioavailability in humans. Additionally, the investigators also aim to design human intervention studies to investigate the effect of intake of lettuce with different nitrate content on vascular health. These objectives will be tested by growing lettuce with different fertiliser compositions resulting in high and low nitrate content and then investigating the bioavailability and short-term effect on BP in healthy young volunteers in a double-blind cross-over design. Eligible subjects will consume one meal each of either low or high nitrate lettuce. Urine, blood and saliva samples will be collected at baseline, for 6 hours after the ingestion and then again after 24hr. Blood Pressure BP will be measured continuously for 24 hours starting at baseline. The volunteers will repeat the intervention with the second treatment.
The aim of this project is to investigate the potential benefits of combining a new protein beef hydrolysates extract with a regular endurance training programme on (a) body composition (b) performance (c) muscle structure (d) blood markers of health in athletes. As a second objective the investigators will analyse potential differences obtained from the ingestion of the new hydrolysates beef protein extract compared to the ingestion of others commercially available protein sources such as whey and non protein only carbohydrate contrast nutrients.
Live Well, Viva Bien (LWVB) is an NCI-funded, cluster randomized controlled trial (RCT) that was conducted in 15 subsidized housing complexes to evaluate the efficacy of a multicomponent intervention comprised of a year-round, discount, mobile fresh F&V market -'Fresh To You' (FTY)- that was paired with a nutrition education component including included educational newsletters, campaigns, taste-testings and videos in both English and Spanish. The primary aim of the LWVB grant was to study the efficacy of FTY combined with a motivational/educational intervention to see if it increased F&V consumption compared to a Comparison intervention (attention placebo).
The USDA Healthy Incentives Pilot (HIP) evaluated the impact of a 30% financial incentive on fruit and vegetable intake among adult participants in the USDA Supplemental Nutrition and Assistance Program (SNAP).
Dietary factors during infancy, e.g. high intakes of protein, fast carbohydrates and saturated fat increase the risk of adult obesity, type 2 diabetes and hypertension. However, current dietary recommendations to infants are based on traditions and experiences whereas research is basically lacking. Towards the end of the first year of life the infant will normally become increasingly suspicious towards fruits and vegetables. However, these foods are an important part of healthy eating. When and how these food items should be introduced into the diet of young children is unclear. New Nordic Diet, an initiative from the Nordic Council of Ministers calls for a larger intake of fruits, vegetables, whole grain, fish and game. In adults such diet improves weight and biomarkers of insulin resistance and cardiovascular disease. Since dietary preferences are founded early in life it is logical to introduce such a diet already when the child is starting complementary foods. In a randomized controlled study from 6 mo of age, we want to explore if a Nordic complementary diet with lower protein intake, more vegetable fats and a systematic introduction of fruits and greens will improve body composition, metabolic biomarkers, the composition of faecal microbiota (associated with obesity), cognitive development and the consumption of foods that can lay the foundation for better long-term diet. If the study has the expected results, these will have a direct impact on the dietary habits of Swedish children during infancy and childhood and thus their long-term health.
The aim of this study is to investigate the acute effects of ingestion of carbohydrates - with different glycemic profiles - on cognitive function among preadolescent children (i.e., 9-10 years).
The objective of this research is to test the effectiveness of persuasive messages targeted at parents who have children who consume inadequate amounts of calcium. Specifically, the effectiveness of the intervention material on increase a) the purchase of calcium-rich products by parents, and b) the consumption of calcium-rich products in the parent and child will be examined in 400 families across Canada. Families will receive either the targeted intervention materials or standard of care generic nutrition materials retrieved from Health Canada's website. Materials will be delivered to parents during weeks 0, 8, 16, and 22 of the study. Monitoring of parents' calcium product purchases and consumption behaviour in both parents and children will occur at week 0,12, 24 weeks (immediately post-intervention) and at 52 weeks (i.e., 6-month follow-up). Purchases will be verified by grocery receipts made during the aforementioned weeks. Parents will self-report on their dietary consumption as well as their child's using a food frequency questionnaire. The study hypotheses are as follows: 1. Parents in the experimental condition will purchase more calcium-rich products as compared to parents in the control condition. 2. Parents and children in the experimental condition will consume more calcium rich products as compared to parents and children in the control condition. 3. Perceived outcome expectancies of consuming calcium-rich products will increase to a greater extent in parents in the experimental condition as compared to parents in the control condition. 4. Self-regulatory efficacy to consume calcium-rich products will increase to a greater extent in parents in the experimental condition as compared to parents in the control condition. 5. Perceived social support and role modelling behaviour will be highest in parents in the experimental condition as compared to parents in the control condition. 6. Self-regulatory efficacy and outcome expectancies will mediate the changes in calcium-rich product purchases and consumption.
A randomized controlled clinical trial comparing the effect of substitution of unsaturated fat from nuts and oils for saturated fat from meat and dairy foods on serum lipids in normal weight and obese subjects with elevated LDL cholesterol.
Over 35,000 Canadians, 65% of men and 72% of women aged 31-50 years fail to consume the recommended number of milk and milk product servings (≤2 servings per day). Given the wide range of health benefits associated with increased dietary intake of milk and milk products the objectives of this study were to conduct a prospective, 5-arm randomised controlled trial in order to test the effectiveness of a variety of messages for increasing milk and milk product consumption in men and women aged 30-50 years old. The five arms consisted of 4 messages that contained slightly different content specifically: 1) gain-framed message condition, 2) loss-framed message condition, 3) self-regulatory efficacy-enhancing message condition, 4) gain-framed and self-regulatory efficacy-enhancing message condition and 5) loss-framed plus self-regulatory efficacy-enhancing message condition. It was hypothesised that those who receive self-regulatory efficacy-enhancing information would consume more dairy than those who received messages without such information. Second, those who received gain-framed messages would consume more dairy as compared to those who received loss-framed messages. Third, those who received gain-framed messages that include self-regulatory efficacy-enhancing information would consume the most dairy in comparison to the other four conditions.