Coffee咖啡
Signature ingredient: Caffeine — B-grade evidence (Cognitive Function, ~95% of the studied dose per serving)
Standard nutrients per USDA FoodData Central · phytochemicals (lutein / K2 / sulforaphane etc.) are literature estimates, varying by variety and processing
S / A … ingredient evidence tier (tap for the claim) | bar = how much of the studied dose one serving of Coffee gives you
Meaningful intake one serving delivers a real fraction of the studied dose
Caffeine
95mg · One cup roughly reaches the alertness dose
B Cognitive Function →
＋ Endurance B・Headache B
≈ 95% of studied dose
Why this page doesn't claim "Coffee works"
Whole foods almost never have RCTs — the evidence sits on the ingredients. So this page does one honest thing: it lists which graded ingredients Coffee contains, how much, and how far that is from the studied dose. It makes no efficacy claim about Coffee itself.
Bottom line: Coffee's star is caffeine - one cup roughly reaches the alertness studied dose, with B-grade evidence for cognition and endurance. Its other components are minor. Watch your individual tolerance and the effect on sleep.
Every tier links to its full evidence page · Methodology →