There's been a lot of talk about optimal macronutrient ratios. The consensus opinion seems to be that this varies between individuals. While I don't necessarily disagree, I'm curious about the source of this variability. If optimal ratios really do differ from person to person, is it mostly a result of differences in genetics? Athletic activity? Previous food choices? Health status? Something else?
My opinion is that it's mainly genetics, epigenetics, and gut bacteria. I'm a major booster for human biodiversity and I'm excited to see all the papers coming out elucidating differences in metabolism between populations.
I'd prolly go with the idea that our natural disposition is towards high fat, medium protein, and minimal carbohydrate. Just makes sense considering a lot of the time evolutionarily.
I don't fuel myself this way at all just so we're clear. I eat way more carbohydrate than fat, but then I have very modern goals, that are pretty much at odds with what our bodies seek: homeostasis.
I'm still looking for a source that lays claim to a probable HG's typical diet that shows the macros. IMO, a HG ate mostly grubs for protein with lots of plant life. Add an occasional mammal kill for bonus protein. How does the high fat diet come into play? Instead, I see a high protein diet. Just throwing this out there to see what stirs.
I focus more on the type of fat/protein/carb vs. the general category classifying each macronutrient.
For instance, for fat, eat a high amount of Omega 3 fats since early human beings congregated around sources of water for food. They ate a great deal of wild fish and seafood. Even wild game meat contained high amounts of Omega 3 fat from when animals grazed on weeds and grasses and diverse species of plant food.
Next, I would eat more saturated fat because early man ate more fatty organ meat. I like ground (grass-fed) beef and ground (grass fed) pork. You'll find that with our current food production methods, it's extremely challenging to increase saturated fat levels without consuming unnaturally high amounts of Omega-6 fats from the corn oil, soybean oil and other vegetable oils they put in farm animal feed. The most unhealthy and inflammatory fat is the polyunsaturated fats in packaged, processed foods and feedlot animals (99% of USDA livestock is feedlot, INCLUDING USDA certified organic).
For protein, early man was able to gather food easier and more readily than chasing it down with spears. Most of your protein intake should come from vegetables and fruits, nuts and berries. I eat raw veggies and fruits (obviously) and occasionally eat raw local eggs from grass-fed chickens (NEVER supermarket eggs, INCLUDING USDA certified organic). When you cook proteins, you lose a large amount of essential amino acids that the body requires in order to make vital hormones, neurotransmitters, enzymes, antibodies, etc.
Finally, for carbs, eat your carbs from veggies and fruits, nuts and berries. Don't eat any grains including rice. There is no wrong amount of fruits and veggies. Our bodies and our genetic code is engineered to handle extremely high levels of consumption of food sources that have been so integral to our survival because they have been so immediate and convenient. Fruits and veggies could never run from us.
It depends on many variables.
For example: Environment Role in tribe Time period Time of year
Hunters who made successful catches would probably eat the most food in general and probably eat the most carbs too since hunting is the most intense exercise a HG would have to do. The hunters would probably be the big muscled guy every guy wants to be. Which goes along good with modern paleos who eat enough carbs to refill glycogen to make good gains.
Gatherers would probably eat less carbs less calories and more fat. Which goes along with women's optimal BF percentage and lowered muscle mass which makes them be able to store less carbs.
Both hunter and gatherer would have times of fasted states. Probably fasted exercise for the hunters and fasted low intensity activities(like walking, squatting, etc) for gatherers.
Kinda funny how the prototype male is supposed to be lean/muscled and the prototype female is supposed to have some cushion for the pushin.