6 Top Reasons to Try Grape Seed Extract Grape Seed Extract: 6 Top Reasons to Try It Among other things, this potent substance can enhance mood, weight loss, and heart health. Proanthocyanidins, polyphony that give grapes their intense red and purple hues, are found in high concentrations in grape seed extract, which is created by crushing grape seeds. Grape seed extract has become more well-known as a functional food because of its potent antioxidant properties. The global market for grape seed extracts reached $135 million in 2020, and by 2027...