Is the vegan diet sustainable without supplements?

I'm thinking to dwell in veganism. but not pseudoveganism with vegan cookies, pastas, pizzas, muffins and whatever. i'm talking about 100% raw living foods. Is such a diet healthy? Is it sustainable without supplements? I want answers only from people with at least 5+ years experience in this diet.
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+1 y
if its a relative of yours, then his/her opinion would still be something
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especially if you work out. anyone with experience?
Is the vegan diet sustainable without supplements?
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