Unfiltered coffee raises cholesterol levels, BUT filtered coffee does not affect cholesterol. Whew! Caffeinated coffee reduces elasticity of blood vessels (ability to dilate), BUT decaf coffee had no effect on vessel elasticity. These were based on 1 cup. BUT two cups of decaf had a beneficial effect on vessel elasticity.

Green and black tea boosts arterial elasticity. Caffeine in coffee impairs coronary artery flow during exercise, BUT caffeine in tea improved coronary blood flow during exercise. BUT addition of milk will undermine the benefit.

One commentor said the chemical in tea is not caffeine molecule. Need to confirm.