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[–] itssomatic 0 points 1 point (+1|-0) ago 

It definitely is possible. The difficulty seems to be that vegetable protein is either bound up with a large amount of carbs or a large amount of fats. I subsisted off peanut butter and split peas for a long time, not that I was trying to be vegetarian/vegan, and it worked for my endurance training & bodyweight strength training. Although, I was able to fill-out easier and retain muscle mass once I added cottage cheese, yoghurt, and eggs.

With plant fats it is easy to get enough Vit E, but the main problem is with Vit D - especially in winter. I don't seem to get the same results taking Vit D supplements as I do with fatty fish and quality eggs.

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[–] BW-414 0 points 1 point (+1|-0) ago  (edited ago)

you're right. 2 winters ago, i had a blood test for nutrition. vitamin d was low. protein was good. i take a supplement with vitamin d, magnesium, and calcium, now.

vitamin d deficiency can cause permanent nerve damage. there are a lot of vegan websites about animals' rights, recipes, etc. but there aren't enough about the need for vitamin and mineral supplements. i read about vitamin d deficiency at veganhealth.org.

i don't know if there have been many long term studies of vegan nutrition. you mentioned fatty fish. 1 nutrient i think is important is omega 3. i haven't taken it. and i guess i'm low on it.