Supplement × Supplement·a caution·Insufficient evidence

5-HTP + Vitex (Chasteberry)

Caution Insufficient evidence

Both may affect mood-related symptoms and neurotransmitter pathways.

From the database

What the row says.

Every entry follows the same shape: what is happening, the mechanism, and the recommendation.

Pair type
Caution
Evidence
Insufficient
Source citations
1
Scope
Supplement × Supplement
Last verified
June 4, 2026
CautionInsufficient evidence

What is happening. Both may affect mood-related symptoms and neurotransmitter pathways.

Mechanism. Dopaminergic and serotonergic pathway overlap in mood symptoms.

Recommendation. Avoid adding both at once; monitor mood, sedation, and serotonergic medication context.

Stack Score

How it moves the number.

Effect on the composite score

If both 5-HTP and Vitex (Chasteberry) are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).

The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.

Sources

Sources, by evidence tier.

Every claim on this page is cited. PMIDs link straight to PubMed.

Reference material

1
  • 1van Die MD et al. Vitex systematic review. Planta Med. 2013.Needs sourceNo link

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