Advocates of low-carbohydrate diets, such as the popular Atkins diet, claim that those diets may help prevent obesity and coronary heart disease (CHD). However, the long-term safety of those diets has been debated, particularly because they encourage the consumption of animal products, which are high in saturated fats and cholesterol and could potentially increase the risk of CHD. Prevailing dietary recommendations have advocated a contrary approach, recommending diets that are low in fat and high in carbohydrates as the best way to manage weight and reduce the risk of cardiovascular disease.
In the first study to look at the long-term effects of low-carbohydrate diets, researchers from the Harvard School of Public Health (HSPH) found no evidence of an association between low-carb diets and an increased risk of CHD in women. Their findings did suggest, however, an association between low-carb diets high in vegetable sources of fat and protein and a low risk of CHD.
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