The human body requires a variety of minerals to function optimally. These minerals are categorized into two groups: macrominerals (needed in larger amounts) and trace minerals (needed in smaller amounts). Below is a list of the essential minerals, their roles, and the recommended daily intake for adults, based on guidelines from organizations like the National Institutes of Health (NIH) and the World Health Organization (WHO).
Macrominerals (Required in larger amounts)
- Calcium
- Role: Bone and teeth health, muscle function, nerve signaling, blood clotting.
- Daily Requirement:
- Adults (19–50 years): 1,000 mg
- Women over 50 and men over 70: 1,200 mg
- Phosphorus
- Role: Bone and teeth formation, energy production, DNA/RNA synthesis.
- Daily Requirement: 700 mg for adults.
- Magnesium
- Role: Muscle and nerve function, blood sugar control, bone health, energy production.
- Daily Requirement:
- Men: 400–420 mg
- Women: 310–320 mg
- Sodium
- Role: Fluid balance, nerve transmission, muscle contraction.
- Daily Requirement: Less than 2,300 mg (ideally 1,500 mg for heart health).
- Potassium
- Role: Fluid balance, muscle contractions, nerve signals, heart health.
- Daily Requirement: 2,600–3,400 mg for adults.
- Chloride
- Role: Fluid balance, digestion (stomach acid).
- Daily Requirement: 2,300 mg (often consumed as sodium chloride, or salt).
- Sulfur
- Role: Protein synthesis, enzyme function, detoxification.
- Daily Requirement: No specific RDA, but typically obtained through protein-rich foods.
Trace Minerals (Required in smaller amounts)
- Iron
- Role: Oxygen transport (hemoglobin), energy production, immune function.
- Daily Requirement:
- Men: 8 mg
- Women (19–50 years): 18 mg
- Women over 50: 8 mg
- Zinc
- Role: Immune function, wound healing, DNA synthesis, taste/smell.
- Daily Requirement:
- Men: 11 mg
- Women: 8 mg
- Copper
- Role: Iron metabolism, connective tissue formation, antioxidant defense.
- Daily Requirement: 900 mcg for adults.
- Iodine
- Role: Thyroid hormone production, metabolism regulation.
- Daily Requirement: 150 mcg for adults.
- Selenium
- Role: Antioxidant defense, thyroid function, DNA synthesis.
- Daily Requirement: 55 mcg for adults.
- Manganese
- Role: Bone formation, metabolism, antioxidant defense.
- Daily Requirement:
- Men: 2.3 mg
- Women: 1.8 mg
- Fluoride
- Role: Bone and teeth health, cavity prevention.
- Daily Requirement:
- Men: 4 mg
- Women: 3 mg
- Chromium
- Role: Blood sugar regulation, macronutrient metabolism.
- Daily Requirement:
- Men: 30–35 mcg
- Women: 20–25 mcg
- Molybdenum
- Role: Enzyme function, detoxification.
- Daily Requirement: 45 mcg for adults.
Important Notes:
- These values are general recommendations for healthy adults. Individual needs may vary based on age, sex, pregnancy, lactation, or medical conditions.
- Excessive intake of certain minerals (e.g., sodium, iron) can be harmful, so balance is key.
- A varied diet rich in whole foods (vegetables, fruits, nuts, seeds, whole grains, lean proteins) typically provides adequate minerals. Supplements should only be used if there is a deficiency or under medical supervision.