23 micronutrients

1. Vitamin A

Vitamin A is a fat-soluble micronutrient essential for various bodily functions, including vision, immune function, and skin health. It exists in two primary forms: preformed vitamin A (retinol) found in animal products and provitamin A carotenoids found in plant foods. Adequate intake of vitamin A is crucial for maintaining healthy eyesight, particularly in low-light conditions, and plays a vital role in the functioning of the immune system by supporting the production of white blood cells.

2. Vitamin B1 (Thiamine)

Vitamin B1, also known as thiamine, is a water-soluble micronutrient that plays a critical role in energy metabolism. It helps convert carbohydrates into energy and is essential for the proper functioning of the nervous system. Thiamine deficiency can lead to serious health issues, including beriberi and Wernicke-Korsakoff syndrome, which affects memory and coordination. Foods rich in thiamine include whole grains, legumes, and pork.

3. Vitamin B2 (Riboflavin)

Riboflavin, or vitamin B2, is another water-soluble micronutrient that is vital for energy production and the metabolism of fats, drugs, and steroids. It also plays a key role in maintaining healthy skin, eyes, and nerve functions. Riboflavin can be found in dairy products, eggs, green leafy vegetables, and fortified cereals. A deficiency in riboflavin can lead to symptoms such as sore throat, redness, and swelling of the lining of the mouth and throat.

4. Vitamin B3 (Niacin)

Vitamin B3, commonly known as niacin, is essential for converting food into energy and is involved in DNA repair and the production of stress and sex hormones. It can be synthesized in the body from the amino acid tryptophan, making it somewhat unique among the B vitamins. Niacin is found in meat, fish, poultry, and whole grains. A deficiency can lead to pellagra, characterized by dermatitis, diarrhea, and dementia.

5. Vitamin B5 (Pantothenic Acid)

Pantothenic acid, or vitamin B5, is crucial for synthesizing coenzyme A, which is involved in fatty acid metabolism and the synthesis of steroid hormones. This micronutrient is widely available in both plant and animal foods, including avocados, eggs, and whole grains. While deficiencies are rare, they can lead to symptoms such as fatigue, irritability, and digestive issues.

6. Vitamin B6 (Pyridoxine)

Vitamin B6, or pyridoxine, is a water-soluble micronutrient that plays a significant role in amino acid metabolism, neurotransmitter synthesis, and the production of hemoglobin. It is vital for maintaining healthy brain function and regulating mood. Foods rich in vitamin B6 include fish, potatoes, chickpeas, and bananas. A deficiency can lead to anemia, depression, and a weakened immune response.

7. Vitamin B7 (Biotin)

Biotin, also known as vitamin B7, is essential for the metabolism of carbohydrates, fats, and proteins. It plays a crucial role in maintaining healthy skin, hair, and nails. Biotin is found in a variety of foods, including eggs, nuts, and whole grains. While biotin deficiency is rare, it can lead to hair loss, skin rashes, and neurological symptoms.

8. Vitamin B9 (Folate)

Folate, or vitamin B9, is vital for DNA synthesis and repair, making it particularly important during periods of rapid growth, such as pregnancy and infancy. It helps prevent neural tube defects in developing fetuses and supports overall cellular function. Folate is abundant in leafy greens, legumes, and fortified cereals. A deficiency can lead to megaloblastic anemia and increased homocysteine levels, which are linked to cardiovascular diseases.

9. Vitamin B12 (Cobalamin)

Vitamin B12, or cobalamin, is crucial for red blood cell formation, neurological function, and DNA synthesis. It is primarily found in animal products, making it a concern for vegetarians and vegans. B12 deficiency can lead to pernicious anemia and neurological issues, including memory loss and cognitive decline. Foods rich in vitamin B12 include meat, fish, dairy, and fortified plant-based alternatives.

10. Vitamin C

Vitamin C, or ascorbic acid, is a powerful antioxidant that supports the immune system, promotes collagen production, and aids in the absorption of iron from plant-based foods. It is essential for maintaining healthy skin, blood vessels, and cartilage. Citrus fruits, strawberries, bell peppers, and broccoli are excellent sources of vitamin C. A deficiency can lead to scurvy, characterized by fatigue, gum disease, and skin issues.

11. Vitamin D

Vitamin D is a fat-soluble micronutrient that plays a crucial role in calcium absorption and bone health. It can be synthesized by the body when exposed to sunlight, but many people do not get enough sun exposure. Dietary sources include fatty fish, fortified dairy products, and egg yolks. A deficiency in vitamin D can lead to rickets in children and osteomalacia in adults, both of which affect bone strength and health.

12. Vitamin E

Vitamin E is a fat-soluble antioxidant that protects cells from oxidative damage and supports immune function. It plays a role in skin health and may help prevent chronic diseases. Sources of vitamin E include nuts, seeds, and green leafy vegetables. A deficiency is rare but can lead to neurological problems and weakened immune response.

13. Vitamin K

Vitamin K is essential for blood clotting and bone health. It exists in two main forms: K1 (phylloquinone) found in green leafy vegetables and K2 (menaquinone) found in fermented foods and animal products. Adequate vitamin K intake is crucial for preventing excessive bleeding and maintaining bone density. A deficiency can lead to increased bleeding and fractures.

14. Calcium

Calcium is a vital mineral that plays a key role in building and maintaining strong bones and teeth. It is also essential for muscle function, nerve signaling, and blood clotting. Dairy products, leafy greens, and fortified foods are excellent sources of calcium. Insufficient calcium intake can lead to osteoporosis and increased risk of fractures.

15. Iron

Iron is a crucial micronutrient that is essential for the production of hemoglobin, which carries oxygen in the blood. It is found in two forms: heme iron from animal sources and non-heme iron from plant sources. Foods rich in iron include red meat, beans, and fortified cereals. A deficiency can lead to iron-deficiency anemia, characterized by fatigue and weakness.

16. Magnesium

Magnesium is an essential mineral involved in over 300 biochemical reactions in the body, including energy production, muscle contraction, and nerve function. It is found in nuts, seeds, whole grains, and green leafy vegetables. A deficiency in magnesium can lead to muscle cramps, mental disorders, and osteoporosis.

17. Potassium

Potassium is a vital mineral that helps regulate fluid balance, muscle contractions, and nerve signals. It is crucial for maintaining healthy blood pressure levels and overall cardiovascular health. Foods rich in potassium include bananas, oranges, potatoes, and spinach. A deficiency can lead to muscle weakness, cramps, and irregular heart rhythms.

18. Zinc

Zinc is an essential trace mineral that supports immune function, wound healing, and DNA synthesis. It plays a role in taste and smell and is important for growth and development during pregnancy, childhood, and adolescence. Foods high in zinc include meat, shellfish, legumes, and seeds. A deficiency can lead to impaired immune response and delayed wound healing.

19. Selenium

Selenium is a trace mineral that acts as an antioxidant and plays a crucial role in thyroid function and immune system health. It is found in Brazil nuts, seafood, and organ meats. Adequate selenium intake is important for reducing inflammation and supporting overall health. A deficiency can lead to thyroid dysfunction and increased risk of certain diseases.

20. Copper

Copper is an essential trace mineral that is involved in iron metabolism, the formation of connective tissue, and the functioning of the nervous system. It can be found in shellfish, nuts, seeds, and whole grains. A deficiency in copper can lead to anemia, bone abnormalities, and cardiovascular issues.

21. Manganese

Manganese is a trace mineral that plays a role in bone formation, blood sugar regulation, and antioxidant defense. It is found in whole grains, nuts, and leafy vegetables. While deficiencies are rare, they can lead to bone malformation and impaired glucose tolerance.

22. Iodine

Iodine is a crucial micronutrient for the production of thyroid hormones, which regulate metabolism and support growth and development. It is primarily found in iodized salt, seafood, and dairy products. A deficiency in iodine can lead to goiter and developmental issues in children.

23. Chromium

Chromium is a trace mineral that enhances insulin sensitivity and plays a role in carbohydrate, fat, and protein metabolism. It is found in meats, whole grains, fruits, and vegetables. A deficiency in chromium can lead to impaired glucose tolerance and increased risk of type 2 diabetes.