The purpose of this study is to determine the effect of a nutritional program which combines two different supplements (a yerba mate extract supplement and a fiber-based, vitamin-rich nutritional supplement) and intermittent fasting on glycemic variability and glycemic control in men and women with risk factors for impaired fasting glucose.~This study will be an exploratory pilot study with one screening visit, one baseline visit followed by a baseline phase, two intervention phases, and one follow-up visit. During the baseline phase, subjects will follow their regular dietary routines. During the 4-day Phase 1, subjects will take the yerba mate supplement once per day and the fiber supplement twice per day. During the 4-day Phase 2, subjects will continue the supplement regimen from Phase 1, while incorporating daily intermittent fasting for approximately 16 hours and eating for 8 hours. A continuous glucose monitor will be worn by each subject to continuously measure glucose throughout the study period.
The purpose of this study is to determine the short-term effect of a nutritional program consisting of a yerba mate supplement, fiber supplement, and intermittent fasting on glycemic variability in men and women with risk factors for impaired fasting glucose.