Do a blood test. All vegetarians should do blood tests every now and then. As an aside; I ate a vegan diet for 2-3 years and my B12 was fine. That’s not to say

Do a blood test. All vegetarians should do blood tests every now and then. As an aside; I ate a vegan diet for 2-3 years and my B12 was fine. That’s not to say it would’ve been fine 2-3 years later, though.