Impact of JuicePlus+ on the Health Status of an Overweight Stressed Population

Completed · Not applicable · Has a placebo group

Conditions studied: Inflammation

In brief

The purpose of this study is to determine if a dried fruit and vegetable supplement (Juice Plus+) can alter the gut microbiome and improve gut permeability and inflammatory levels in an obese, stressed population. The microbiome and its component genes are long known as critical determinants of the nutritional value of the food we eat. Recently, it has become clear that the composition of this microbiome and its metabolites influences the host immune system, thereby altering host physiology. Both obesity and chronic stress have been shown to have an altered gut microbiome; both these conditions also lead to increased systemic inflammatory molecules that can lead to an increased risk for type 2 diabetes and other diseases caused by chronic inflammation. Juice Plus+ consumed by an overweight population combined with an eight week exercise regime showed decreased markers of protein/lipid oxidation (ox-LDL), total lipid oxidation (TOS) and lowered systemic concentrations of the inflammatory cytokine, TNF-α. As systemic cytokines are altered by the composition of the gut microbiome, this study proposes to determine if this decrease in inflammation by Juice Plus+ is due to a change in the species composition and metabolism of the microbiome. This question is particularly relevant for populations with high inflammatory loads resulting from excess weight in addition to increased psychological stress. The investigators propose to determine 1) how Juice Plus+ consumption alters the microbiome species composition and metabolism, 2) if there is an alteration in intestinal permeability with the consumption of Juice Plus+ and 3) do these alterations coincide with lower systemic markers of inflammation and oxidative stress among individuals who are psychologically stressed and overweight. The investigators will use a randomized, placebo-controlled design with a cohort of overweight, female, critical care health care professionals. Subjects will receive the supplements or placebo for sixteen weeks. At the end of 16 weeks, the cohort receiving the supplement will be randomized to also receive a meal replacement component or follow their normal diet for an additional 4 weeks. Stool and a fasting blood sample will be collected at the beginning of the study (baseline) and 8, 16 and 20 weeks later. At each time point, subjects will also consume a cocktail of glucose, mannitol and lactulose and a second blood draw performed to look at absorption of these molecules.

Key facts

Study ID
NCT02512107
Run by
University of Memphis
People needed
57
Starts
2015-01-01
Expected to finish
2019-04-27
Last updated by the study team
2022-05-17

Who can join

Age: 25 and older, up to 50. Sex: female. Healthy volunteers: accepted.

You may qualify if…

You may not qualify if…

Where it is running

Full record on ClinicalTrials.gov

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