Are Green Grapes Healthier Than Red Grapes?

Red grapes contain quercetin, a flavonoid that has anti-inflammatory and antihistamine properties and helps the immune system fight allergies. They also contain resveratrol, a flavonoid with similarities to synthetic estrogen that may be able to help ease the symptoms of menopause. The catechins, proanthocyanidins and stilbenes in red grapes may also have a preventative effect against breast cancer. Both red and green grapes contain high amounts of manganese, which strengthens bones and connective tissues.