Vitamin B12 is a water-soluble B-complex nutrient that the body needs in small amounts to function properly. Vitamin B12 benefits your energy levels, mood, memory, heart, hair, skin, digestion and is also essential to produce DNA and red blood cells.

Vitamin B12 deficiency can lead to several health problems, including chronic fatigue, nerve damage, mood disorders, neurodegenerative disorders, heart problems, anemia, and neural tube defects in babies. To reverse vitamin B12 deficiency, aim to consume more natural sources of vitamin B12, including beef liver, organic meats, and wild salmon.