
B12 deficiency takes a lot to develop, but vegans and vegetarian should not take it lightly, since is a bad disease.
When I was vegetarian I tried to eat a lot of eggs and milk product for that, besides spirulina (Arthrospira platensis).
How to get vitamin B12 without eating meat? Image result
A very low intake of vitamin B12 can cause anemia and damage to the nervous system. The only reliable vegan sources of B12 are B12-fortified foods (Including some non-dairy milks, some soy products, and some breakfast cereals) and B12 supplements.