L-tryptophan is a moderate-risk supplementwith an RDA of 500 mg and a safe upper limit (UL) of 4500 mg per day according to EFSA standards. All 1 regional standards agree on these limits. Use NutriAudit to check if your supplement stack keeps this ingredient within safe limits.
L-tryptophan sits in the Other Supplements category. This page consolidates 1 regional standard, and the numbers are broadly aligned, so the bigger question is whether your total dose stays in range.
For this ingredient, the main task is usually not a binary yes/no question but checking the label dose, your total intake, and possible overlap with the rest of the stack.
| Region | Organization | RDA | Upper Limit (UL) | Unit |
|---|---|---|---|---|
| 🇪🇺 Europe | EFSA | 500 | 4500 | mg |
RDA = Recommended Daily Allowance (adequate intake for most adults). UL = Tolerable Upper Intake Level (maximum safe daily amount).
First match your product label against the dose table above, then check whether the known interaction list includes anything in your current stack.
If you are taking multiple supplements, the safest approach is usually to audit the whole stack instead of judging a single bottle in isolation.
The safe upper limit (UL) for L-tryptophan is 4500mg per day according to EFSA. Exceeding this amount regularly may increase the risk of adverse effects.
The RDA for L-tryptophan is 500mg per day for most adults. This amount is sufficient to meet the needs of 97-98% of healthy individuals.
Check if your supplement stack keeps L-tryptophan within safe limits.
Audit My SupplementsDisclaimer: NutriAudit is a decision-support tool designed to help you review your supplement stack for potential duplicate, conflicting, or excessive ingredients. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making changes to your supplement routine, especially if you are pregnant, nursing, taking medications, or have a medical condition.
Based on reference standards from FDA, EFSA, TGA, and MHLW.