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Dr. Justin Siegel at AG1

Dr. Justin Siegel

PhD — Chemistry, Biochemistry, & Molecular Medicine

Dr. Justin Siegel is a Professor of Chemistry, Biochemistry, and Molecular Medicine at the University of California, Davis, where he also serves as Faculty Director of the Innovation Institute for Food and Health. His research focuses on enzyme discovery and design for applications spanning human health, nutrition, and sustainable technologies. He is a co-inventor on more than 100 global patents, has published over 50 scholarly articles, and has co-founded multiple companies and research consortia. Dr. Siegel earned his PhD from the University of Washington and was elected a Fellow of the National Academy of Inventors in 2023.

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University of California

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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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