7 Foods Often Described as “Blood-Thinning” — What You Should Know
Some foods contain compounds that can affect platelet activity or blood clotting, but they aren’t equivalent to prescription blood thinners. Their effects are generally much less predictable than medications.
- Garlic 🧄
Garlic contains compounds that may affect platelet aggregation. Large amounts, particularly concentrated garlic supplements, may increase bleeding risk in some people. - Ginger 🫚
Ginger may have mild effects on platelet activity. Normal amounts used in food are generally different from taking concentrated supplements. - Turmeric
Curcumin, a compound in turmeric, has been studied for possible effects on platelet function. Culinary amounts are not a substitute for anticoagulant medication. - Fatty fish 🐟
Fish such as salmon, sardines, and mackerel provide omega-3 fatty acids, which can have effects on platelet function and cardiovascular health. - Flaxseeds
Flaxseeds provide omega-3 fatty acids and other compounds that may influence cardiovascular health and clotting. - Cinnamon
Cinnamon contains compounds that have been investigated for effects on platelet function, although evidence that ordinary dietary amounts meaningfully “thin the blood” is limited. - Dark leafy greens 🥬
Spinach, kale, and other leafy greens are rich in vitamin K, which is actually important for normal blood clotting. They are therefore not blood thinners. If you’re taking warfarin, however, keeping your vitamin-K intake consistent is important rather than suddenly eating much more or much less.
An important warning
If you take warfarin, apixaban, rivaroxaban, dabigatran, clopidogrel, aspirin, or another blood-thinning medicine, don’t deliberately add large quantities of these foods or supplements without discussing it with your healthcare professional.
And don’t replace a prescribed blood thinner with food. No food has the predictable anticoagulant effect of a prescribed medication.
If you’re concerned about blood clots, bleeding, or your diet while taking a particular blood thinner, tell me the name of the medication, and I can explain which foods and supplements deserve particular attention.
