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Tropical fruit juices such as MonaVie, XanGo, Noni, Goji, and Pom Wonderful are making a big splash. They're promoted for everything from longevity to infections and cancer. The promotions are so convincing that they sometimes can even make well read clinicians wonder if the claims are valid. Most of the claims come back to the fact that these juices contain antioxidants...but they often sell for over $40/bottle Acai (A-sigh-EE) is the main ingredient in MonaVie. Acai is sometimes called a "superfood" because it contains more antioxidants than blueberries or cranberries. But there's no proof that it's more beneficial than other foods. Market forecasters predict that you'll hear a LOT about superfoods. They'll be one of the new big things in 2007...aimed mainly at aging men. Mangosteen is often called "Xango" juice. It is high in antioxidants called xanthones. Morinda is also known as "Noni" juice. It MIGHT be associated with a few cases of liver toxicity. Warn patients on ACEs, ARBs, and spironolactone that morinda is high in potassium...almost 15 mEq per 8 ounces. Goji contains sterols that prevent cholesterol absorption... but there's no proof that drinking Goji helps lower cholesterol. To be safe, caution warfarin patients to stay away from Goji... it might inhibit warfarin metabolism. Pomegranate juice (Pom Wonderful) has preliminary evidence that it might have some cardiovascular benefits. But there's concern about possible drug interactions...similar to grapefruit juice. Tell people they're basically fruit juices and it's okay to drink them in modest amounts. But despite the hype, there is no proof they cure any disease, and people shouldn't expect miracles. Source – Prescriber’s Letter: www.prescribersletter.com