blood-pressure
3 interactions related to blood-pressure
hawthorn + coq10
Hawthorn (Crataegus) flavonoids and oligomeric procyanidins act on the mechanical and vascular side of heart function, while CoQ10 supports the heart's energy metabolism in the electron transport chain. The two are sometimes combined as low-risk cardiovascular adjuncts, but the supportive human evidence is for each ingredient separately, not for the pair, so any "synergy" is extrapolated rather than demonstrated.
l-arginine + l-citrulline
L-arginine is the direct precursor to nitric oxide, but a large share of an oral dose is degraded by intestinal arginase and first-pass liver metabolism, so plasma levels peak quickly and fall within an hour or two. L-citrulline largely bypasses that metabolism and is converted to L-arginine in the kidneys, sustaining the rise for longer. Taken together they raise plasma arginine higher and for longer than either alone, supporting nitric-oxide-dependent effects.
garlic + hawthorn
Garlic and hawthorn each modestly lower blood pressure on their own, and both have mild blood-thinning activity, so taking them together can add up to a slightly larger drop in blood pressure and a small increase in bleeding tendency. There is no human trial of the two taken together, so any true 'synergy' beyond simple additive effects is unproven. The practical concern is layering them on top of antihypertensive, antiplatelet, or anticoagulant medication.