grapes, peel off the skin and you will see that the flesh is almost colourless. Red wine gets its colour from a pigment known as anthocyanin that is found in grape skins. Hence it is possible to ...

White wines also contain the same amount of sulfites as red wines. Your body also produces about 700 milligrams of sulfites daily as you metabolize the protein in your food and excrete it as sulfate .

But there are many other phenolic compounds in grapes’ skin and seeds besides tannin that make it into red wines from the winemaking process, and are not present in white, so any of them could be a ...