The body makes it; supplementation is corrective in restricted diets.
What the evidence supports: blood pressure and glucose markers in small trials.
This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.
Not established. Often taken ongoing without clear justification.
Vegans and people with specific cardiac or metabolic conditions.
Other supplements:
Run your full list through the interaction check.