Supplements
What the human studies show for common supplements, with doses and study lengths stated plainly.
Psyllium husk: powder, granules or capsules?
Powder, granules and capsules compared by husk amount, serving size and water instructions.
NMN supplements: what the human trials show
Oral NMN raised blood NAD in several trials. What the human trials found for insulin, walking speed and fitness, and what they did not.