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Vitamin D

What it’s good for
Vitamin D helps to promote the body’s absorption of calcium and phosphorus, so it’s important in maintaining bone health. It prevents rickets in children and osteomalacia in adults, two forms of bone-weakening diseases. This vitamin also helps to protect your overall immunity.

Where to find it
Commonly coined the “sunshine” vitamin, it can be absorbed through UV rays on the skin. Vitamin D-rich foods include salmon, cod liver oil, tuna, mackerel, fortified milk and cereal.

How to take it
Recommended dosage for adults: 200 IU daily.

Too much vitamin D leads to nausea, vomiting, poor appetite, constipation, weakness, and weight loss.