causal
Analysis v1
Your hair gets its color from special cells that need specific nutrients like copper, zinc, and vitamins B12 and folate to work properly. If you don't get enough of these nutrients through your diet, those cells can't make melanin, which is what gives your hair its color.
Evidence from Studies
No evidence studies found yet.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.