Veganism is a way of living, at least dietary, without the consumption of animal flesh or products. Because animals are routinely enslaved and killed for our use and greed. The word vegan is a contraction of vegetarian and was coined in the UK in 1944 by the pioneers of the first Vegan Society in the world.
Plant protein is as easily absorbed and as useful to the body as animal protein.
A varied and balanced vegan diet provides all the minerals you need. There should be no worries with a varied diet providing sufficient calories but, the evidence on whether vegans can obtain a sufficient supply of B12 without supplements is inconclusive, so the Vegan Society recommends that new vegans eat some foods fortified with B12 eg soya milk or yeast extract. Also the vegan families list and a comprehensive range of factsheets such as pregnancy are available on this website or directly from the vegan society office.