^^^argentina maybe, I dont know. Your b12 will be fine even if you don't supplement specific b12 as long as you eat balanced. Best b12 is injected or sublingual if you want.
I am vegetarian and been that way for 34 years so biased but do not think you need me3at to get big, but you got to eat variety. If I were to eat meat would do the grass fed only, no corn fed and no big company stuff. Watch food inc and or food matters