Vitamin B12 and Folate - Vitamin B12 is a nutrient that helps keep the body's nerve and blood cells healthy and helps make your DNA. It also helps prevent a type of anemia called megaloblastic anemia, a condition where red blood cells are larger than normal reducing the amount of oxygen that can be carried to the body’s tissues. This will normally makes people tired and weak. When Vitamin B12 levels are low people are often fatigued and have decreased energy levels.
Vitamin D – Vitamin D is not only essential to help build strong bones but helps regulate the immune system and the neuromuscular system as well as plays a major role in the life cycle of human cells. Vitamin D is very important that your body make by itself as low levels can contribute to soft bones and skeletal deformities. It also affects mood; when levels are low they can often result in depression and anxiety. Until those levels are normalized psychiatric problems can be difficult to treat.
Deficiencies in Vitamin D have now been linked to breast cancer, colon cancer, prostate cancer, heart disease, depression, weight gain, and other conditions. Studies show that people with higher levels of Vitamin D have a lower risk of disease, although they do not definitively prove that the lack of Vitamin D causes the disease.