How big of a dose of Vitamin B6 should I take?

Your Vitamin B6 dose depends on age, sex, and needs, but stick to the RDA of 1.3-1.7 mg daily from food or low-dose supplements unless tested deficient. Exceeding 100 mg/day risks nerve damage, so never self-dose high amounts without medical guidance.

RDA by Age and Life Stage

The Recommended Dietary Allowance (RDA) meets most needs via diet (chicken, fish, bananas, chickpeas).

Group	RDA (mg/day)
Adults 19-50	1.3 (men), 1.3 (women)
Adults 51+	1.7 (men), 1.5 (women)
Pregnant	1.9
Lactating	2.0
Children 9-13	1.0

Upper Limits: Don't Cross These

US Tolerable Upper Intake Level (UL) is 100 mg/day for adults from all sources (food + supplements), based on neuropathy risks from long-term high doses. EFSA sets a stricter 12 mg/day for adults; some countries cap supplements at 21 mg. Doses over 200-500 mg often cause issues like numbness, tingling, or ataxia.

When Higher Doses Are Used

Prescribed for deficiency, nausea (pregnancy), or neuropathy (under doctor supervision, often 50-100 mg short-term). Test levels first—most Indians get enough from diet but deficiencies hit vegetarians or those with gut issues.

Risks of Overdosing

Even "natural" B6 supplements can harm: peripheral neuropathy (numbness, pain) from >100 mg chronic use, sometimes irreversible. Other side effects: nausea, sensitivity to light, heartburn.