sources. The RDA is 1.4mg. Vitamin B2 (riboflavin) is a co-enzyme found in dairy products, green leafy vegetables and whole grain cereals. The RDA is 1.6mg.

Medically reviewed by Suzanne Fisher, RD Vitamin B12 is a powerhouse nutrient crucial for maintaining overall health and ...

However, all men and women over 51 years only have an RDA of 8 mg of iron per day. Therefore, the iron amount may be more than these groups need. Most multivitamins contain B12 at a lower dose than ...