Similarly, raisins were not able to acutely improve artery function,6972 but a cup and a quarter of various fresh grapes, including red and blue-black ones, can even blunt the arterial dysfunction caused by a McDonald’s Sausage McMuffin with Egg meal.6973 Chronic improvement in artery function was also demonstrated in a randomized, double-blind, placebo-controlled trial (using powdered red grapes).
