Medical Test

Essential for vision Lycopene may lower prostate cancer risk. Keeps tissues and skin healthy. Plays an important role in bone growth and in the immune system. Diets rich in the [...]

Foods rich in vitamin C may lower the risk for some cancers, including those of the mouth, esophagus, stomach, and breast. Long-term use of supplemental vitamin C may protect against [...]

Helps convert food into energy. Needed for healthy skin, hair, muscles, and brain and is critical for nerve function.

Helps convert food into energy. Needed for healthy skin, hair, blood, and brain

Helps convert food into energy. Essential for healthy skin, blood cells, brain, and nervous system

Helps convert food into energy. Helps make lipids (fats), neurotransmitters, steroid hormones, and hemoglobin

Aids in lowering homocysteine levels and may reduce the risk of heart diseaseHelps convert tryptophan to niacin and serotonin, a neurotransmitter that plays key roles in sleep, appetite, and moods. [...]

(vitamin B12) Aids in lowering homocysteine levels and may lower the risk of heart disease. Assists in making new cells and breaking down some fatty acids and amino acids. Protects [...]

Helps convert food into energy and synthesize glucose. Helps make and break down some fatty acids. Needed for healthy bones and hair

Helps make and release the neurotransmitter acetylcholine, which aids in many nerve and brain activities. Plays a role in metabolizing and transporting fats

Helps maintain normal blood levels of calcium and phosphorus, which strengthen bones. Helps form teeth and bones. Supplements can reduce the number of non-spinal fractures

Acts as an antioxidant, neutralizing unstable molecules that can damage cells. Protects vitamin A and certain lipids from damage. Diets rich in vitamin E may help prevent Alzheimer's disease.

Vital for new cell creation. Helps prevent brain and spine birth defects when taken early in pregnancy; it should be taken regularly by all women of child-bearing age since women [...]

Activates proteins and calcium essential to blood clotting. May help prevent hip fractures

Builds and protects bones and teeth. Helps with muscle contractions and relaxation, blood clotting, and nerve impulse transmission. Plays a role in hormone secretion and enzyme activation. Helps maintain healthy [...]

Balances fluids in the body. A component of stomach acid, essential to digestion

Enhances the activity of insulin, helps maintain normal blood glucose levels, and is needed to free energy from glucose

Plays an important role in iron metabolism and immune system. Helps make red blood cells

Encourages strong bone formation. Keeps dental cavities from starting or worsening

Part of thyroid hormone, which helps set body temperature and influences nerve and muscle function, reproduction, and growth. Prevents goiter and a congenital thyroid disorder

Helps hemoglobin in red blood cells and myoglobin in muscle cells ferry oxygen throughout the body. Needed for chemical reactions in the body and for making amino acids, collagen, neurotransmitters, [...]

Needed for many chemical reactions in the body Works with calcium in muscle contraction, blood clotting, and regulation of blood pressure. Helps build bones and teeth

Helps form bones. Helps metabolize amino acids, cholesterol, and carbohydrates

Part of several enzymes, one of which helps ward off a form of severe neurological damage in infants that can lead to early death

Helps build and protect bones and teeth. Part of DNA and RNA. Helps convert food into energy. Part of phospholipids, which carry lipids in blood and help shuttle nutrients into [...]

Balances fluids in the body. Helps maintain steady heartbeat and send nerve impulses. Needed for muscle contractions. A diet rich in potassium seems to lower blood pressure. Getting enough potassium [...]

Acts as an antioxidant, neutralizing unstable molecules that can damage cells. Helps regulate thyroid hormone activity

Balances fluids in the body. Helps send nerve impulses. Needed for muscle contractions. Impacts blood pressure; even modest reductions in salt consumption can lower blood pressure

Helps form bridges that shape and stabilize some protein structures. Needed for healthy hair, skin, and nails

Helps form many enzymes and proteins and create new cells. Frees vitamin A from storage in the liver. Needed for immune system, taste, smell, and wound healing. When taken with [...]