Harmful To Your Health

Not only are the high-protein/high-fat diets based on half-truths, they also may be detrimental to your health. Carbohydrates (which are broken down by the body into the most basic form of sugar, glucose), are the main source of energy for the brain and nervous system. When carbohydrates are significantly restricted, the body alters its metabolism by breaking down proteins and fats to produce alternative “fuels.”

The loss of protein can cause muscle loss. In the absence of carbohydrates, the burning of fat for energy becomes inefficient, producing substances called ‘ketones’, which serve as a glucose substitute. The kidneys attempt to rid the body of these ketones and protein by-products by passing them in the urine, causing significant water loss.

Thus, the initial weight loss experienced by people on low-carbohydrate diets reflects water loss, not the loss of fat. This loss is quickly regained when carbohydrates are added back into the diet.

In addition, a high level of ketones significantly alters the blood chemistry, causing its acidity to rise. This can contribute to bone loss, nausea and fatigue. Too, a higher intake of protein is often accompanied by an increase in saturated fat, which predisposes the body to heart disease, stroke and cancer.

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