The American Heart Association (AHA), for example, points out that most Americans already eat more protein than their bodies need. It warns that high-protein animal foods (recommended by low carb diets) are usually also high in saturated fat, and their consumption for a sustained period "raises the risk of coronary heart disease, diabetes, stroke and several types of cancer." ("High Protein Diets," 2001) The AHA also points out that a high-protein diet puts a large number of people who can't use excess protein effectively at higher risk of kidney and liver disorders, and osteoporosis. (Ibid)

Coronary heart disease and stroke are the result of a high-fat diet while increased risk of cancer is due to the restrictions on consumption of fruits and vegetables that contain a number of cancer-fighting antioxidants and phytochemicals. A high-protein diet could be particularly damaging for the kidneys. This is because increased protein intake leads to...
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