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 High-protein diets are becoming more and more popular. But are they safe? According to an 11-year study of 1,624 women, diets high in protein may strain a woman’s kidneys. Participants who began the study with healthy kidneys and ate up to 5.7 ounces of protein a day experienced no kidney problems. But women who started out with minor kidney abnormalities saw their condition worsen more quickly on a diet high in protein, particularly protein from meat. Protein from vegetables and dairy products, on the other hand, was not linked to a worsening of kidney problems.
Annals of Internal Medicine
Men who need to keep their cholesterol levels in check may want to load up on rye bread. In one study, Finnish men with moderately high cholesterol levels ate about eight to 10 slices a day of rye, rather than wheat, bread. With this simple dietary change, they lowered their total cholesterol levels by 14%. In addition, they reduced their LDL—or “bad”—cholesterol levels by 12%.
Journal of Nutrition
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