Best Form of Each Supplement
Research-backed rankings of the optimal form for 240+ supplement ingredients
Clinical Guides
Which magnesium form absorbs best? We compare glycinate, malate, citrate, threonate, and oxide by bioavailability. Our clinical pick: Magnesium Glycinate.
Read guide →Our Pick: Vitamin D3 (Cholecalciferol)Best Form of Vitamin D: A Clinical GuideD3 vs D2, and whether to add K2 — we break down which vitamin D form raises serum levels most effectively. Our pick: Vitamin D3 (Cholecalciferol).
Read guide →Our Pick: Creatine MonohydrateBest Form of Creatine: A Clinical GuideMonohydrate vs HCl vs buffered creatine — 500+ studies point to one clear winner. Our pick: Creatine Monohydrate.
Read guide →Our Pick: UbiquinolBest Form of CoQ10: A Clinical GuideUbiquinol vs ubiquinone — which CoQ10 form is worth the premium? Our pick: Ubiquinol, especially for adults over 40.
Read guide →Our Pick: Re-esterified Triglyceride (rTG)Best Form of Omega-3: A Clinical GuiderTG vs ethyl ester vs krill — we compare omega-3 forms by EPA/DHA bioavailability. Our pick: Re-esterified Triglyceride (rTG) form.
Read guide →Our Pick: KSM-66 or Sensoril ExtractBest Form of Ashwagandha: A Clinical GuideKSM-66 vs Sensoril vs root powder — which ashwagandha extract has the most clinical evidence? Our pick: KSM-66 or Sensoril, depending on your goal.
Read guide →Our Pick: MethylcobalaminBest Form of Vitamin B12: A Clinical GuideMethylcobalamin vs cyanocobalamin — which B12 form is most bioavailable? Our pick: Methylcobalamin for most people.
Read guide →Our Pick: Zinc Bisglycinate or Zinc PicolinateBest Form of Zinc: A Clinical GuideZinc bisglycinate vs picolinate vs oxide — we compare every major zinc form by absorption rate. Our picks: Bisglycinate and Picolinate.
Read guide →