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Dr. Grant Tinsley at AG1

Dr. Grant Tinsley

PhD — Energy Balance & Body Composition

Dr. Grant Tinsley is an Associate Professor and Director of the Energy Balance & Body Composition Laboratory at Texas Tech University. His research focuses on how nutrition, exercise, and energy balance influence body composition, metabolic health, and physical performance across diverse populations. He has published more than 160 peer-reviewed articles and led over 20 externally funded research projects. Dr. Tinsley holds a PhD in Kinesiology, Exercise Nutrition, and Health Promotion from Baylor University and is a Fellow of the American College of Sports Medicine.

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Baylor University

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  1. In a triple-blind, randomized, placebo-controlled parallel-designed clinical trial evaluating nutrient biomarkers and microbiome shifts in 105 healthy adults ages 20-59 over the course of 12 weeks.
  2. In a double-blind, randomized, placebo-controlled 2-week crossover clinical trial assessing nutrient gaps and microbiome shifts in 20 active adults ages 19-37.
  3. In a double-blind, randomized, placebo-controlled 2-week crossover clinical trial assessing nutrient gaps and microbiome assessments of 24 healthy adults with occasional GI distress ages 26-59 over the course of 4 weeks.
  4. In a double-blind, randomized, placebo-controlled crossover clinical trial assessing nutrient gaps and bioavailability in 16 healthy adults ages 18-42 over the course of 8 hours.
  5. In a third-party, single-arm, closed label interventional study of 104 healthy adults ages 25-59 assessing self-perceived efficacy of AG1 Next Gen over 3 months.

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