Vitamin D
One of the most important vitamins synthesized in the human skin is vitamin D. It is present in dietary sources and sunlight. Vitamin D is considered to be the most common nutrients deficiency in the world in adults, obese people, dark skin people. Vitamin D deficiency causes osteoporosis and increases susceptibility to infections.
Iron
Iron is the most important mineral nutrient, is the main component of red blood cells that carry oxygen. Heme-iron is well absorbed and present in meat and animal products. Non-heme iron is present in vegetables which is not bio-available. The deficiency of iron can cause anemia, breath shortness, pale skin, brittle nails and fatigue.
Calcium
Calcium is an essential mineral nutrient for bone metabolism and nerve signaling. It is found in dairy products, leafy vegetables, fruits and soft-boned fish. Calcium deficiency can cause a muscle spasm, low energy level, muscle weakness, cramps, osteoporosis and rickets.
