Two years later those who ate the Mediterranean diet had half the risk of heart attack and sudden cardiac death compared with those who stayed on the regular low-fat diet, even though their cholesterol declined only a modest 14%.

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For more than two months, researchers at Rockefeller University in New York and Harvard tested several different types of low fat diets on 18 people with normal cholesterol levels, including a diet containing more than half a pound of steamed shrimp a day.

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But in each one of those coprolites, there was, on average, half an anchovy - that is not your diet, that is a condiment.

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Over 70% of the women were currently trying to lose weight, and over 35% had spent over half of the last five years on a diet.

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Half the women were put onto the high-protein diet while the rest had a high-carbohydrate eating plan.

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The low protein-diet group gained about seven pounds, about half the 13.3 pounds added on by the normal protein participants and 14.4 pounds put on by the high protein group.

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Ms Cazau said the comedian had cut down his prescription of the steroid prednisone "by half" and had embarked on "very rigorous exercise routine and a carefully planned diet" to take his weight down from 242 pounds (110kg) .

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In the Diet session that ended on Wednesday he managed to win approval for only one-and-a-half of the four big initiatives he hoped to pass.

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