Yes there can be some variation. I am only asking for if the theory of evolution can tell us if we should be on a high fat low carb diet or a high carb low fat diet. Can they contribute to the discussion that science is having on this subject right now?
My son is in the marching band so of course they want to balance his electrolytes where they may not be an issue for people that do not exert themselves they way younger people do. That is more fine tuning then anything else. Although if a band director is worth anything then he should be able to recommend the best diet and how to keep people from dehydration.
Not very long ago they gave the sports team a high fat high protein diet before the big game. Now they are recommending a high carb diet. Perhaps we should be grateful that science is no longer giving out bad advise and they have come so far from where they were last Thursday. Although Dr Atkins still seems to still be popular even though the Wall Street Journal on gave details from Dr. Atkins's confidential medical report. The report concludes that Dr. Atkins, 72, had a history of heart attack and congestive heart failure and notes that he weighed 258 pounds at death.
Hunter gatherers ate tons of meat and they likely consumed the fat as well and especially so if they were in a cold climate, because fat is an insulator and keeps the body warm.
Eskimos consume a very high percentage of fat and have little heart disease.
Cultures around the world have shown us, you can consume a wide variety of diets and not have a major issue with heart disease, because the body can adapt to different diets and it is very much dependent on activity levels as well.
Sugar (table sugar) and highly processed foods, are something that appear to be the major problem and when you look at the variations of diet that can produce health, none of them consume much sugar or processed foods.
Marathon runners have a very high demand to store glycogen in their muscles and liver, because it is their fuel tank to sustain the exercise they perform, for long periods of time. The most efficient way to store glycogen, is with complex carbohydrates and a marathon runner will readily store carbohydrates as glycogen and NOT FAT. If a sedentary person consumes a high complex carb diet, they don't have the demand to store glycogen, so much of that carbohydrate, is stored as fat and hence, they have completely different dietary needs.
Athletes who are extremely active, burn fuel at a high rate, so less chance of anything getting stored as fat, or building up of fatty acids in the blood stream. Sedentary people need to be much more cautious in what they eat, because the fuel burn level is so much lower, the body is more prone to store fat and build up fatty acids in the blood. Also, high amounts of exercise increase insulin sensativity, which is a natural protective measure against diabetes.
The body has also shown, it can adapt to a high protein, high fat diet and still be very physically active, when ketosis is activated and the body turns into more of a fat burning machine, vs a glycogen burning machine.