Quote:
Originally Posted by VALEWIS
No argument from me on what you say above..
However, I do think it is important every once in a while to question the whole emphasis on looking for ONE factor for something that is possibly muti-factorial. Our paleolithic ancestors probably ate whatever came to hand and also did not live in a universe of chemicals and plastics, they exercised at least half the day on average searching for food, and in all probability did not live as long as we do for CHD to be a huge problem anyway. We are organic systemic beings, not made of titanium, and there are a huge number of variables that impinge on our cardiovascular and other systems. Our sedentary lifestyles may be just as important as what food we eat when it comes to inflammation/insulin resistance/whatever for one example.
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I think it's always instructive to look at the people like me and Anthony Colpo who have never needed to lose bodyfat, have never been sedentary, and have cared and been obsessive enough about our health that we never eat junk food, to see just how critical the influence of macronutrient ratio is promoting optimum health. Anthony's book is the best account I've read (and it mirrors my own experience) of following all the prevailing recommendations about diet and lifestyle and still only even beginning to discover what good health was when he adopted a low carb/highfat/mod prot diet. Note we're not talking about the relative efficacy or otherwise of various bodyfat loss protocols. Just health indicators (although obviously bodyfat levels are usually considered a health indicator). I think it's unhelpful to argue that diet is
more or
less important in being as healthy as you can be.
I think it's far more important to recognize that stress diet sleep and activity llevels are equally important in attaining optimum health. Nevertheless once you have recognized that if you don't get the diet right, you'll never be as healthy as you can be, you have to ask the question what that ideal diet is.
My take on the supremacy of low carb/high fat/ mod protein diets for human health is based on the reading I have done that clearly establishes that for all but a tiny fraction of our evolution, there just wasn't much carbohydrate around, and the stuff that was regularly available (leafy greens) was completely off even the low end of the contempory glycemic index scale, and thus represented an almost infinitesimal glycemic load. So often, people get stuck debating the furphy about wether or not we have a vegetarian or carnivorous digestive tract, when it is beyond all shadow of a doubt omnivorous. Of far more signifigance to me is the size of our carbohydrate processing machinery. The relative size of the human pancreas is the clearest indication that carbohydrate was not a big part of the human energy equation. Wild fruits are demonstrably low in carbs. Wild tubers are mostly fibre and low in carbohydrate anyway. Fat is the most energy dense macronutrient and easily digestible without any processing. Even tubers had to be cooked. Even when hunting for game was poor, high fat insects were always around, and are still a primary part of hunter gatherer diets. I've eaten bogong moths and witchety grubs (indigenous insect fare for all you non Australians) and theyre primarily fat. There was always some insect species going through its fat rich stage of development. The reason we became human at all is that we got clever at finding lots of fat and protein and kissed our gorilla like vegetation munching cousins goodbye for ever.
And we don't store energy as carbohydrate (glycogen stores are not a big part of our energy storage design and we only there at all for the initial sprint away from the pursuing predator or invader), we store both excess carbohydrate
and and fat as .... FAT (predominantly saturated)
This macronutrient availability was reinforced over the millenia of our evolution in the structure of our metabolic machinery.
So saying that health (and longevity for that matter) are multifactorial and therefore singling diet out for special attention is unwise is missing the point IMHO. Optimizing health includes optimizing dietary macronutrient ratio. In my experience, in the experience of this forum (a few dissenters notwithstanding
) and increasingly in the considered opinion of the researchers who are busy reviewing the methods and conclusions of the architects of the recommended Food Pyramid paradigm, that optimum macronutrient ratio is high fat/ low carb/ mod protein.
And the apparent fact that departing from that evolutionarily determined low carb diet certainly makes it more likely that we'll have to at some stage sample the wares of the pill pushers, is simply grist for the commercial mill. Why not make a pharmaceutical mega industry out of transgressing our low carb evolutionary blueprint. Creates jobs, after all
I've no doubt that human health is not
just about sticking to a low carb diet. But if you don't get that right, you're starting the race with a huge handicap. There are so many ways of dealing with that handicap. You might decide to become a stick insect like Matt, or try to take up the slack with massive amounts of exercise, or trying to minimize the damage done by spending a fortune on supplements.
In my experience, getting the diet right makes the potential benefit of getting everything else right (low stress, positive attitude [which sort of negates stress anyway] sleep , activity levels , clean air .....etc.) that much more wonderful