4 Clinical Trials for Various Conditions
Recent epidemiological studies show that egg consumption is associated with insulin resistance and altered glycemic control. For this study, the investigators hypothesize that this association is due to dietary patterns associated with egg consumption, such as saturated fat, and not the consumption of eggs per se. This study will be conducted in two parts that will be conducted simultaneously. Part I will utilize an ecological momentary assessment approach in which dietary patterns associated with egg intake will be determined using an objective measurement of food intake called remote food photography method. In Part II, a randomized partial crossover study will be conducted on the same sample of subjects to test the effects of egg consumption, saturated fat consumption, and consumption of the combination of eggs and saturated fat on glucose, insulin, and hunger and satiety hormone levels.
The purpose of this study is to determine if digital photography on a Smartphone and the Remote Food Photography Method (RFPM) can estimate infant formula intake. This is a validation study; there is no hypothesis.
The primary aim of this small study is to test the validity of the Remote Food Photography Method and an updated SmartIntake app in a sample of adolescents. The investigators will test the validity (accuracy) of the method/app at estimating energy intake in free-living conditions over approximately three days compared to doubly labeled water. This is a small study that has low statistical power, but will provide important data nonetheless and inform future research.
"The goal of this study is to evaluate whether the addition of spices and herbs to the vegetables served to military personnel on a large military base can increase vegetable intake as compared to typical vegetable offerings without spices and herbs. A two-phase intervention will be conducted on base at Naval Station Activity Bethesda (NSAB) to evaluate whether the addition of spices and herbs to vegetable dishes can increase vegetable intake amongst military service members. Phase I will involve extensive engagement with key stakeholders involved in current vegetable consumption at NSAB, including military service members, staff dietitians, the health promotion specialist on base, barracks managers, military culinary specialist, unit leaders, morale welfare and recreations/single sailor program leaders, base senior enlisted leaders, and the base commander. Questionnaires will be administered evaluating current barriers to vegetable intake at NSAB, familiarity with and liking of a variety of spices and herbs, and sensory testing of several vegetables with and without spices and herbs. The recipes in the vegetable sensory testing comparisons will be identical other than spices and herbs content. Phase II will involve will focus upon the direct measurement of vegetable intake (primary outcome) and vegetable linking (secondary outcome) among active-duty service members with spices and herbs and without spices and herbs. The vegetables will be provided as part of an entire meal on a "grab and go" plate. The other foods in the meal (proteins, starches, etc.) accompanying the vegetables will be kept consistently paired to vegetable recipes to minimize confounding. Vegetable intake will be assessed via cell phone pictures and liking will be assessed by a single 5-point Likert scale question."