View clinical trials related to Eating Behavior.
Filter by:Although there is evidence that low calorie sweeteners (LCS) do not stimulate hunger or appetite, divergent opinions appear regularly both in the scientific literature and in the popular press. The goal of this study is to examine the effects of LCS containing beverages on appetite and intake in healthy individuals.
A randomized double-blind placebo controlled intervention study with pregnant obese women (n=440) will be conducted. The intervention will involve consumption of fish oil and/or probiotic capsules from early pregnancy until 6 months after delivery. The aim of the study is firstly to investigate the effects of the supplements on the risk of gestational diabetes mellitus and obesity in the women and secondly to modify the risk markers of allergy and obesity in children of the women. Also the underlying metabolic mechanisms will be investigated. Follow up visits at child's age of 5 to 6 years will be conducted to evalute long-term effects on maternal and child health. The aim is to investigate the impact of dietary intervention, diet, maternal overweight/obesity and gestational diabetes status as well as gut microbiota and metabolism during pregnancy on maternal and child's health, allergy and child neuropsychological development.
In order to investigate if individuals, carrying genetic variants predisposing to obesity, respond differently to visual presented food images than non-carriers the investigators aim to screen 500 people for a common risk variant in the FTO gene. From those 500 screened 40 subjects, 20 homozygous for the risk allele and 20 homozygous for a non risk allele will be selected for the second step in the study. This part involves the fMRI technique to visualize the brain response, focus on reward system activation, when food images are visually presented in the scanner. Factors regarding eating behavior, sleep, physical exercise and relation to food are investigated in the first part of the study as well as clinical parameters such as BMI.
With the abundance of energy-dense foods that are designed for ease of consumption in the current environment, it is of importance to better understand the factors that may undermine the control of energy intake at healthy levels. One of the factors that is potentially important in response inhibition is caffeine. The aim is to assess the direct effects of caffeine on response inhibition, using a No Go/Go-task. We will also assess whether the presentation of food cues, i.e. as words or as pictures, modulate response inhibition different in restrained vs. non-restrained eaters.
In this study the investigators will examine the Feeding Dynamic Intervention (FDI) as a tool to prevent obesity in young children. The purpose of the intervention is to improving caregiver feeding practices, child eating behaviors, and child self-regulation of energy intake in the short term.
Exciting advances have led to the concept that hormones can modulate appetite and food intake. Oxytocin is a peptide hormone that is released in regions throughout the brain, including areas involved in food motivation. Animal studies suggest that oxytocin may reduce food intake. The effects of oxytocin administration on eating behavior in humans, which could have important implications in eating-related disorders ranging from obesity to anorexia nervosa, have not been investigated. This double-blind placebo-controlled cross-over study of single-dose oxytocin administration investigates whether: 1. Caloric intake will decrease following administration of oxytocin versus placebo 2. Appetite will decrease following administration of oxytocin versus placebo 3. Resting energy expenditure will increase following administration of oxytocin versus placebo
This study is exploring the relationship between food intake behavior and the hypothalamic-pituitary axis (HPA) in women who regularly skip breakfast compared to women who regularly eat breakfast.
to study the dietary intake and eating behaviors of adolescents who undergo bariatric surgery
This study will explore the eating habits of adolescents and determine if eating behavior is linked to genetics. Healthy adolescents between 13 and 17 years of age may be eligible for this study. Candidates come to the NIH Clinical Center at 8:00 AM to be screened with the following: - Medical history and brief physical examination, including height, weight, and body fat measurements. Body fat is measured using a device called a Bod Pod. The adolescent sits inside the device for about 5 minutes and the machine determines body fat by measuring air movement. The adolescent must wear a tight-fitting swimsuit for this test. - Urine test to look for sugar or protein in the urine and to test for pregnancy in females. - Blood tests for routine chemistries and for gene studies related to eating behaviors. - Questionnaires and interviews about the adolescent s general health and eating habits. - Acclimatization to test meal conditions for the study. The adolescent is given a breakfast shake to drink. Participants come to the NIH Clinical Center at 10:30 AM for laboratory meal testing. At this visit, the adolescent does the following: - Eats food from a buffet of everyday foods that most kids eat. - Fills out questionnaires. - Tastes and rates the flavor of a variety of snack foods.
Specific Aims: Environmental factors contributing to overconsumption, such as larger food portion sizes, may be contributing to the obesity epidemic. The objective of the proposed study is to examine the independent and combined effects of portion size and quantity of food on intake in normal weight males and females. Participants will be randomly assigned to one of four conditions varying in the portion size and quantity of junk food provided: small quantity of food packaged in small portions (SSP), small quantity of food packaged in large portions (SLP), large quantity of food packaged in small portions (LSP), and large quantity of food packaged in large portions (LLP). A box containing four different junk foods, packaged according to one of the four conditions, will be given to participants to take home for three days. The total amount of food consumed from the box over the three days will be measured. It is anticipated that portion size and quantity of food, both independently and combined, will influence intake, such that larger portion sizes and quantity of food provided to participants will produce greater intake.Subject Population: We propose to recruit 60 healthy men and women, aged 18-50 years, with a body mass index (BMI) of less than or equal to 28. Participants will be non-smokers, unrestrained eaters, and have no known food allergies to the foods used in the investigation.Methods/Design: Participants will be randomly assigned to one of four conditions, varying in portion size (small versus large) and quantity of food provided (small versus large). A box containing four junk foods, packaged according to one of the conditions, will be provided to participants. They will be encouraged to eat as much or as little of the food as they want, but to at least taste each of the four foods over the three-day period. During this time, they will be instructed to not eat any other junk foods. At the end of the three-day period, participants will return the box with any remaining uneaten junk food.Data Analyses: The dependent variables, the amount of grams and kcals consumed from the provided junk foods, will be examined between the four different conditions.Significance: If portion size and quantity are related to intake, subsequent studies will develop clinical interventions related to reducing portion size and/or quantity of food available in the household.