You can believe what you like, but normal food sources for humans have a large proportion of carbohydrates. Heck, even reasonably fresh muscle tissue has carbohydrates, so carbohydrate intake of even pure carnivores is not zero, much less natural omnivores like genus Homo.
I can’t find a cite on line and don’t have my nutritional biochemistry text here at the office, but I believe that fresh beef muscle tissue has about 80 mg/kg of L-ascorbate (Vitamin C), which puts it on par with non-citrus fruits, and the liver has about 300 mg/kg, about the same as grapefruit or lime. These are uncooked, of course; the decomposition temperature of ascorbic acid is around 190°C, so if you have your steak cooked more the medium rare you’ll have little or no Vitamin C left, and it will also naturally decompose fairly quickly with exposure to oxygen, so ground beef that isn’t very fresh won’t have much to speak of, and aged beef probably won’t have any measureable amount. Being water soluable, vegetables that are boiled or canned will also lose a goodly amount of ascrobate to their cooking medium; steamed or grilled vegetables, on the other hand, retain most of the nutrional benefit.)
[thread=365432]How long could a massively overweight person survive without food?[/thread]
Conclusion: not long. However, with a carefully monitored diet restricted to a minimum necessary proteins and a limited amount of essential fatty acids, along with supplemental micronutrients, an obese person could survive a quite a while consuming significantly less than the minimum caloric intake for a healthy, active person. In fact, high protein Atkins-type diets were originally developed and continue to be used to treat people who are dangerously obese and not capable of significant anaerobic exercise to use body stores of subcutaneous fat. This requires careful monitoring of blood sugar and insulin production levels, but it’s a case of the detriment of a near term high protein diet being far less than the health impact of obesity.
I could have sworn cecil had a column were he said that a significant percentage of the earth’s population subsists on beans and rice. Can’t find it in my search… maybe it was an unsupported assertion made in one of the half dozen “people kibble” threads.