Originally Posted by callmemama
Its my understanding that its the carbs that gives us energy, not the fats or proteins...
Well, I've only got about two years of biochem classes under my belt (switched majors), but from a conventional biochemistry perspective, carbohydrates give short bursts of energy, and proteins longer more level energy. They all have different functions. Carbohydrates are made up of different types of simple sugars which break down and essentially power the body functions. Proteins are made up of amino acids, which are the building blocks of DNA and RNA, and are essential for continued function and reproduction of the cells. Fats are the building blocks of cell membranes which regulate the fluids into and out of the cells. Many vitamins are fat soluble and many are water soluble. The fat soluble vitamins can only be obtained by ingesting fats. How much or how little of each macronutrient, its role in connection/synergy with the other macronutrients and the effects that these all have from the cellular level up to the level of the organism are issues that will probably continue to be debated for a long time in scientific as well as holistic circles. My personal belief is that people should do their own research, not based on what other people's conclusions in research papers have been, but drawing their own conclusions based on variables present and missed in certain research and the actual data obtained in the study.
I'll definitely have to read The China Study, I'm even more curious now. I do have a question for you though (although I'll probably read it anyway): do the studies in question take into account variables such as where the animal was raised (outside or in a pen/cage), whether it was routinely given vaccines, hormones and antibiotics, what it ate (grains or its natural diet), etc or is all milk protein, for example, considered equal? Even organic milk is a far cry from biodynamic. What about preparation - whether it was pasteurized or unpasteurized, whole or lowfat, processed in some other way, habitually eaten with something containing some additive or other (like MSG), etc? Or, in the case of eating meat, is it taken into account how the animal was slaughtered and what fear hormones may be present in the muscle meat given the circumstances? And what about the physiological differences in the study subjects themselves, their general health and wellbeing in relation to other factors occuring in their lives, their constitution at the beginning of the study, etc?