Patricia Walker
Registered Dietitian, Certified Diabetes Educator, Certified Leap Therapist
B12 is a big one although Nutritional Yeast and some soy and fortified plant products may contain small amounts. Safer to supplement as B vitamins for consistent intake, I usually recommend 250 mcg/day. Calcium and iron are two other nutrients that may be low in a vegan diet, depending on choices. Adequate protein can be consumed through daily intake of legumes, beans, soy products, nuts and seeds.