Pennington Biomedical Research Center

This study planned to test whether a virtual weight control program (WW, formerly Weight Watchers) could help adults with type 2 diabetes and obesity lower their blood sugar levels. Participants would have used the WW SmartPoints system and attended weekly online workshops. Howev…

This pilot study will compare two diets—one high in ultra-processed foods and one typical American diet—in 6 adults with overweight or obesity. Participants will try each diet for two weeks in random order. The goal is not to prove which diet is better, but to see if a larger stu…

This pilot study looks at why military personnel often have low iron levels during training. Six physically active adults will receive either erythropoietin or a placebo and then do a 90-minute loaded march. The goal is to find the best way to measure iron absorption after exerci…

This pilot study looks at how well young children absorb iron from special nutrient supplements. Researchers will give 30 children in Kenya (ages 1-3) a supplement with a harmless iron tracer, then measure iron levels in their blood two weeks later. Half the children are healthy,…

This study looks at how moderate aerobic exercise (like brisk walking) might help prevent colorectal cancer from coming back. Researchers will measure changes in inflammation and other blood markers in 60 people who have finished cancer treatment. Participants either walk on a tr…