Eating Too Much Protein in Middle-Age Could be Harmful.

A new study suggests that a high protein diet (>1.2g protein per kg of body weight consumed per day) increases the risk of cancer, diabetes, and death among middle-aged adults. Lead author Dr. Valter Longo writes, “We studied simple organisms, mice, and humans, and provide convincing evidence that a high-protein diet – particularly if the proteins are derived from animals – is nearly as bad as smoking for your health.”
Cell Metabolism, March 2014