On April 24, the U.S. Food and Drug Administration (FDA) issued warning letters to 10 manufacturers and distributors of dietary supplements containing dimethylamylamine (DMAA). DMAA is commonly found in sports and weight-loss supplements.

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Laguna Beach, CA—Richard A. Passwater, Ph.D., scientific editor/author of WholeFoods’ Vitamin Connection column and well-known nutrition researcher, and fish oil authority Jorn Dyerberg, M.D., DMSc., have co-authored a new book about omega-3s that is due out this summer.

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Pittsburgh, PA—First-quarter sales for GNC Holdings Inc. better than expected. Revenues were $624.3 million, which was 23% higher than they were last year at this time.

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Washington, D.C.—A recent study commissioned by the Council for Responsible Nutrition (CRN) found that dietary supplement use for adults ages 18 and over is on the rise. Compared to 66% of adults in the U.S. in 2010, supplement usage is now at 69%.

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The 2012 Natural Products Expo West tradeshow was the largest in its 30-year history. Some 60,000 industry members attended the event, which ran March 8–11 at the Anaheim Convention Center. Show organizers said attendance of retail buyers grew 13% this year, which made for a good show, say many exhibitors.

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Bethesda, MDNational Institutes of Health researchers have identified how resveratrol may confer its health benefits. Resveratrol is a naturally occurring chemical found in plants like grapes. The researchers found that resveratrol does not directly activate sirtuin 1, a protein associated with aging. Instead, it inhibits phosphodiesterases (PDEs), proteins that help regulate cell energy. The chemical has gained some interest from pharmaceutical companies for its potential to fight diabetes, inflammation and cancer.

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The A.C. Grace Company, located in Big Sandy, TX, is celebrating its 50th anniversary this year. A.C. Grace got its start under unfortunate circumstances; founder Roy Erickson suffered three heart attacks in 1962, and was told by doctors after the third just to go home and wait for the next one. As a young man in his 50s, Erickson thought this advice was unacceptable, so, let down by his doctors, he set out to discover a heart healthy aid on his own.

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Stockholm, Sweden—Approximately 5.4 million Americans suffer from Alzheimer’s disease, according to the Alzheimer’s Association. A recent study conducted by the Aging Research Center at the Karolinska Institute links low plasma levels of mixed tocopherols and tocotrienols (full spectrum vitamin E) to an increased risk of developing Alzheimer’s disease and mild cognitive impairment in older individuals.

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Denver, CO—Impressive data were published in Carcinogenesis showing grape seed extract killed cancer cells in mice and left healthy ones alone.

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Silver Spring, MD—The U.S. Food and Drug Administration (FDA) is cracking down on companies selling over-the-counter (OTC) HCG as weight-loss aids by making the product illegal, citing that fads and diets promising fast weight-loss often do so with unsupported claims and potentially unhealthy ways.

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