What kind of interaction is it?

Caution: an interaction that may reduce efficacy or raise side-effect risk and warrants monitoring.

Is this interaction backed by published research?

Yes. NutriStack lists 2 citation rows for the Aspirin Low-Dose + Garlic Extract pair, each linking to PubMed by PMID where available. Full sourcing methodology at https://nutristackapp.com/methodology/interactions.

Interaction databaseSupplement × PrescriptionReviewed May 2026

Aspirin Low-Dose and Garlic Extract, a caution.

Q: Can I take Aspirin Low-Dose and Garlic Extract together?

Possibly, but with caution. Aspirin Low-Dose and Garlic Extract have a documented caution-tier interaction. Garlic supplements inhibit platelet aggregation and have been compared head-to-head with aspirin and clopidogrel in clinical studies showing measurable antiplatelet effects. Combined with low-dose aspirin, garlic supplements stack antiplatelet activity and can increase bleeding risk, particularly perioperatively.

Q: How does this affect a NutriStack Stack Score?

-5 to your Stack Score per scored caution row.

Garlic supplements inhibit platelet aggregation and have been compared head-to-head with aspirin and clopidogrel in clinical studies showing measurable antiplatelet effects. Combined with low-dose aspirin, garlic supplements stack antiplatelet activity and can increase bleeding risk, particularly perioperatively.

2 primary source citations. Moderate evidence. Last verified May 30, 2026.

Open the interaction checker →Read the methodology

One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.

Sourcing standards·Evidence tiers

From the interaction database

What the row says.

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

At a glance

Substances: Aspirin Low-Dose and Garlic Extract
Pair type: Caution
Evidence (highest tier): Moderate
Source citations: 2 sources
Stack Score effect: −5 to your Stack Score (per scored caution row).
Scope: Supplement × Prescription
Last verified: May 30, 2026

Caution · Moderate evidence

Caution

What is happening. Garlic supplements inhibit platelet aggregation and have been compared head-to-head with aspirin and clopidogrel in clinical studies showing measurable antiplatelet effects. Combined with low-dose aspirin, garlic supplements stack antiplatelet activity and can increase bleeding risk, particularly perioperatively.

Mechanism. Allicin and related organosulfur compounds inhibit platelet COX and thromboxane synthesis, modify platelet membrane properties, and reduce calcium-mediated activation. These mechanisms overlap with and add to aspirin's irreversible COX-1 inhibition.

Recommendation. Avoid concentrated garlic supplements while on aspirin, and stop garlic supplements at least 7 days before any planned surgery. Cooking with garlic is fine.

Sources (2)

Stack Score

How this pair moves the number.

Effect on the composite score

If both Aspirin Low-Dose 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 documented at /methodology/stack-score.

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