For how we live.
"Superfood" is a marketing word, not a scientific one. Blueberries carry real evidence for the heart and, tentatively, the ageing brain — but most of it is observational or short-term markers, not hard outcomes.
The large trials built to confirm vitamin E's promise came back null, and a meta-analysis tied 400 IU a day or more to a small rise in all-cause mortality.
A 21,442-person trial of cocoa flavanol extract missed its main heart target. The blood-pressure effect is real but small — and nearly half of dark chocolate products exceeded a strict lead limit.
Cohort data link green tea drinking to lower cardiovascular death, but trials show only surrogate changes and concentrated extracts have caused liver injury at everyday catechin doses.
The warning that olive oil's low smoke point makes it unsafe to fry with is largely wrong. Oxidative stability, not smoke point, is what matters, and olive oil is among the more heat-resistant common oils.