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    How Diet Affects Gout

    Fatty Red Meats Are Bad; Dairy Found to Be Protective
    By
    WebMD Health News

    March 10, 2004 -- Ever since Ye Olden Days, gout was known as the "disease of kings" for a good reason: Besides such notable nobleman as Henry VIII, Sir Isaac Newton, and Benjamin Franklin, this type of inflammatory arthritis -- the most common in men -- usually afflicted only those who ate like royalty.

    Their diet was much like today's typical American diet, centered around hefty portions of fatty red meats and seafood, as well as vegetables such as peas, beans, mushrooms, and cauliflower.

    All of these foods are rich in purines, a chemical that breaks down into uric acid, the waste product that crystallizes and causes inflammation in joints, causing gout. As a result, those prone to or already with gout were long advised to avoid purine-rich foods.

    But a new study clarifies exactly which purine foods may cause harm while exonerating others. And for the first time, researchers find that low-fat dairy products can actually prevent gout from occurring.

    "Having more than two glasses of milk a day is associated with a 50% risk reduction," says lead investigator Hyon Choi, MD, DrPH, of Harvard Medical School and Massachusetts General Hospital. "We think it's because dairy products are low in purines, but also relatively high in protein. And protein most likely helps to reduce uric acid levels."

    But protein-rich meats and fish are especially high in purines and have long been linked to contributing to gout. And in Choi's 12-year study involving 47,150 men, gout risk increased 21% with each serving of beef, lamb, or pork per day, and 7% with each serving of seafood per week. Chicken and other "white" meats do not increase risk, he says.

    Yet purine-rich vegetables and grains such as oatmeal were not found to increase risk at all. His research, published in this week's New England Journal of Medicine, analyzed how eating habits affected gout occurrence in the men studied.

    Red Meat High in Purines

    Purines are found in many animal products with the exception of low-fat dairy foods and eggs. Organ meats (liver, heart, kidneys), herring, mackerel, anchovies, and trout are particularly rich sources. Beans and peas contain a moderate amount of purine.

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