The Surprising Skin Shield in Every Bottle of Grapes Research published by Western New England University suggests that consuming grapes daily can alter gene expression in the skin, providing powerful protection against sun damage at a genetic level.
A study involving participants who ate three servings of whole grapes per day for two weeks found significant changes in gene activity, both between individuals and within the same person over time.
While the study focused on skin health, it's possible that this effect is not limited to the largest organ in our body.