10 foods to increase your vitamin B12 and your energy

Clams are small, chewy shellfish that are packed with nutrients.This mollusk is a lean source of protein and contains very high concentrations of vitamin B12. You can get more than 7,000% of the DV in just 20 small clams.Clams, especially whole baby clams, also provide great amounts of iron, with almost 200% of the DV in a 100-gram (3.5-ounce) serving of small clam.