Rubenov said:
Just had a tense argument with a Vegan... I did not want to get into it but the fucker started criticizing the low-carb diet so I had to shoot back. Man, I really don't get vegans; this guy is cool though.
The Vegan diet is very easy to break down even from a high level in that it's in conflict with evolution by natural selection. We can compare our digestive system to herbivores, carnivores, and omnivores and clearly see that we're omnivores. Humans, especially those before the agricultural revolution, needed caloric dense and nutrient dense food like meat in order to supply enough nutrition to the brain. I mean just look at the nutrition of organ meat like liver:
http://whfoods.com/genpage.php?tname=foodspice&dbid=129
And unlike spinach it's loaded in calories. You can't get those sorts of B vitamins from plants.
We thrive on long chain omega 3 fats found from wild fish and wild game, and we don't have a proficient ability to make long chain from short chain omega3s (plant sources). Plant protein is severely deficient in amino acids like Methionine. In many parts of the world outside of Africa, man only could survive from meat. In fact, we have analyzed teeth of homo sapiens and Neanderthals and found that we were nearly heavy meat eating omnivores in ice age Europe while Neanderthals were nearly carnivores.
Looking further at the human digestive system we find that even with processed foods that make the Vegan diet possible, we don't have the phytase needed to digest things like grains and soy without complications with mineral absorption due to phytic acid.
Much of the evolutionary biology of humans shows that we have adapted to both meat and vegetables. In order for the Vegan diet to be superior, there would be a Darwinian advantage to some sort of tribal people in history. I can't think of any.
Low carb diets were part of human history. During the warm seasons things like fruit were part of a larger diet that was already significantly lower in carbohydrate than the modern diet. Tribal people didn't collect seeds and grind them up to make bread. There was no natural selection favoring grain eaters or sugar extract eaters for 99.99% of human history. There were however famines, dry seasons, and after migration from Africa cold seasons (winter). The human body has a perfectly healthy mechanism of converting fat and protein into alternative fuel for the brain/heart called ketones. The ketogenic diet is studied on several disorders like Epilepsy. What conditions is the Vegan diet applied to in scientific research?
If you want more fuel in an argument against a scientific basis to eat a Vegan diet and evidence supporting health of a low carb diet (at least in brief periods), I'd read:
Debunking of the China Study:
http://rawfoodsos.com/the-china-study/
Evolutionary Biology/Nutrition:
Stuff by Richard Dawkins if you don't get Evolution
Loren Cordain's work on the traditional human diet/paleo diet
Scientific evidence supporting low carbohydrate diet and health:
Good Calories, Bad Calories by Gary Taubes
Vegans I know if real life are thin...but not a healthy thin. They lose both lean and fat mass. Look real saggy skinned/bony for their age.
betweenthewheels said:
Where should I begin with P90X? Should I initially stick with one of the routines or cycle through them all weekly?
Sorry if this has been covered before.
People in the thread will tell you to stick to the program or something. From a fat loss perspective and assuming you're out of shape, I'd do something like phase 1 of P90X but at 1/2 to 1/3 of the rate starting out. Those workouts will injure a coach potato at the normal rate.
Stridone said:
Vegans are morons. A vegan diet isn't even healthy despite what they claim.
To be fair, if you take the food pyramid to the extreme and literally believe all of the bullshit about red meat, saturated fats, and cholesterol, and you replace the animal products in the food pyramid with sugar, hummus, and lentils....you have the vegan diet.