l carnitine comes from L-Carnitine | Linus Pauling Institute Designs for Health Carnitine Synergy

Because this combination bypasses the first (and rate-limiting) step to produce glutathione in your cells, it is vital in supporting higher glutathione levels through diet

Davis R, Schulman J, Delehanty A

The effects of berberine on blood lipids: a systemic review and meta-analysis of randomized controlled trials

Among vitamin B12 deficient older people, high folate levels are associated with worse cognitive function: combined data from three cohorts

Nutrient Absorption: Ensures 100% absorption of essential vitamins and minerals

I go into some detail about the prevalence of B12 deficiency in various populations: omnivores, vegans, vegetarians