What caution must individuals taking blood thinners or blood pressure medications observe regarding the consumption of black currants?

They may slow blood clotting or cause blood pressure to drop too low.

Due to the documented effects blackcurrants have on vascular health, specifically concerning circulation and the body's clotting mechanisms, certain individuals must exercise caution. People prescribed blood thinners (anticoagulants) or medications intended to manage high blood pressure should consult their healthcare providers before significantly increasing their intake. This precaution is necessary because the compounds in black currants might possess inherent properties that slow down the rate of blood clotting, potentially enhancing the effect of anticoagulant drugs, or conversely, they might contribute to a drop in blood pressure that is already being managed medically.