NutriStack
CautionModerate evidence
What is happening. Garlic extract may add to dong quai bleeding risk.
Mechanism. Additive platelet and coagulation effects.
Recommendation. Avoid unsupervised combination if bruising, surgery, or anticoagulants are present.
Supplement × Supplement·a caution·Moderate evidence
Dong Quai + Garlic Extract
Caution
Moderate evidence
Garlic extract may add to dong quai bleeding risk.
From the database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
Substances
Pair type
Caution
Evidence
Moderate
Source citations
1
Scope
Supplement × Supplement
Last verified
June 4, 2026
Stack Score
How it moves the number.
Effect on the composite score
If both Dong Quai and Garlic Extract 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- 1Chen XP et al. Angelica sinensis review. J Ethnopharmacol. 2013.Needs sourceNo link
Check your full routine
One pair was the worked example.
Drop your supplements and prescriptions into NutriStack and it runs every pair at once: every interaction, synergy, timing rule, and contraindication, each linked to its primary source.