Why is it so important?
How much healthier might you be if you had a more plant-based diet?
Yes, lots of beans and grains (soy, quinoa, chia, nuts and more) are considered complete proteins and many plant sources have more protein than a lot of meat and dairy sources but as I've pointed out elsewhere it's about getting the amino acids we don't make ourselves so we can make our own protein. There is no food not artificially supplemented that we get complete nutrition from. Further, we break down protein we consume so we can digest it.
Plus, the RDA is considered high and that we don't need nearly as much and more is not better:
"New York Times nutritionist Jane Brody writes in her Good Food Book, "There's no need for an ordinary, healthy person to eat more than the RDA suggests." Further, she writes that many Americans eat twice as much protein as needed. Excess protein can't be stored, and its elimination puts a strain on the kidneys and liver. Too-high protein consumption is linked to kidney disease, cancers of the colon, breast, prostate and pancreas, and even osteoporosis."
"In addition, Brody suggests, too much protein can make you fat since most of the typical protein sources in the American diet (70 percent of which comes from animal and dairy foods) are high in fat and calories."
These are simple things to find on the web.
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"Americans are downing close to 200 pounds of meat, poultry and fish per capita per year (dairy and eggs are separate, and hardly insignificant), an increase of 50 pounds per person from 50 years ago. We each consume something like 110 grams of protein a day, about twice the federal government’s recommended allowance; of that, about 75 grams come from animal protein. (The recommended level is itself considered by many dietary experts to be higher than it needs to be.) It’s likely that most of us would do just fine on around 30 grams of protein a day, virtually all of it from plant sources."
And here's another athlete doing just fine on a vegetarian diet:
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Not to mention there's quite a few vegan body builders who are doing quite well:
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I think it's possible that tajuha isn't a troll, just has other things to do and doesn't even know people are all het up about the idea of eating plants.