Sir Heneage Ogilvie, former vice president of the Royal College of Surgeons, England.
The earliest and primary proponent of an all animal-based diet was Vilhjalmur Stefansson, a Canadian explorer who lived with the Inuit for some time, and who witnessed their diet as essentially consisting of meat and fish, with very few carbohydrates - berries during the summer. Stefansson and a friend later volunteered for a one year experiment at Bellevue Hospital in New York to prove he could thrive on a diet of nothing but meat, meat fat and internal organs of animals.
His progress was closely monitored and experiments were done on his health throughout the year. At the end of the year, he did not show any symptoms of ill health; he did not develop scurvy , which many scientists had expected to manifest itself only a few months into the diet due to the lack of vitamin C in muscle meat. However, Stefansson and his partner did not eat just muscle meat - they ate fat, raw brain, raw liver (a significant source of vitamin C and others), and other varieties of offal. The no-carbohydrate and low carb diet often reverses type two diabetes.
We do not advocate a no carb diet, although this has been proved to be safe, it would be a very boring way to live. Some of us think of our way of life as being meat eating vegetarians. No, we are not trying to wind up vegetarians, but we base our food on fresh vegetables, then add high quality protein, then good fats. If you are consuming around 30-50 carbs per day, all from non starchy vegetables, you have a very large range to choose from. By eating the colours of the rainbow, and eating small portions, of many different types, you can get all the nutrients you need to stay healthy.