Health

Vitamins and Minerals

20 essential vitamins and minerals with recommended daily values, primary functions, top food sources, and deficiency symptoms.

20 rows6 columns0 views0 downloadsSource: NIH Office of Dietary SupplementsUpdated: 2/18/2026
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20 of 20 rows
Nutrient
Type
Daily Value
Primary Function
Food Sources
Deficiency Symptom
Vitamin Avitamin900 mcg RAEVision, immune function, skin healthSweet potato, carrots, spinach, liverNight blindness, dry skin
Vitamin B1 (Thiamine)vitamin1.2 mgEnergy metabolism, nerve functionWhole grains, pork, legumesBeriberi, fatigue, nerve damage
Vitamin B2 (Riboflavin)vitamin1.3 mgEnergy production, cell growthMilk, eggs, almonds, spinachCracked lips, sore throat, skin rashes
Vitamin B3 (Niacin)vitamin16 mg NEDNA repair, energy metabolismChicken, tuna, mushrooms, peanutsPellagra (dermatitis, diarrhea, dementia)
Vitamin B6vitamin1.7 mgProtein metabolism, neurotransmitter synthesisPoultry, fish, potatoes, bananasAnemia, confusion, weakened immunity
Vitamin B12vitamin2.4 mcgRed blood cell formation, neurological functionMeat, fish, eggs, dairyMegaloblastic anemia, nerve damage, fatigue
Vitamin Cvitamin90 mgCollagen synthesis, antioxidant, immune supportOranges, strawberries, bell peppers, broccoliScurvy (bleeding gums, fatigue, joint pain)
Vitamin Dvitamin20 mcg (800 IU)Calcium absorption, bone health, immunitySunlight, fatty fish, fortified milk, eggsRickets (children), osteomalacia (adults)
Vitamin Evitamin15 mgAntioxidant, protects cell membranesSunflower seeds, almonds, spinach, avocadoNerve and muscle damage, vision problems
Vitamin Kvitamin120 mcgBlood clotting, bone metabolismKale, spinach, broccoli, Brussels sproutsExcessive bleeding, easy bruising
Folate (Vitamin B9)vitamin400 mcg DFEDNA synthesis, cell division, fetal developmentLeafy greens, legumes, fortified grainsMegaloblastic anemia, neural tube defects
Calciummineral1300 mgBone and teeth structure, muscle contractionDairy, fortified plant milks, kale, sardinesOsteoporosis, muscle cramps, brittle nails
Ironmineral18 mgOxygen transport in blood (hemoglobin)Red meat, spinach, lentils, fortified cerealsIron-deficiency anemia, fatigue, pale skin
Magnesiummineral420 mgMuscle and nerve function, blood sugar regulationNuts, seeds, whole grains, dark chocolateMuscle cramps, fatigue, irregular heartbeat
Zincmineral11 mgImmune function, wound healing, taste/smellOysters, beef, pumpkin seeds, chickpeasImpaired immunity, hair loss, delayed wound healing
Potassiummineral2600 mgFluid balance, nerve signals, muscle contractionsBananas, potatoes, beans, avocadosMuscle weakness, fatigue, irregular heartbeat
Sodiummineral2300 mg (max)Fluid balance, nerve impulses, muscle functionTable salt, processed foods, breadHyponatremia (confusion, nausea, seizures)
Phosphorusmineral1250 mgBone and teeth formation, energy metabolism (ATP)Meat, dairy, nuts, beansBone pain, weakness, loss of appetite
Seleniummineral55 mcgAntioxidant defense, thyroid hormone metabolismBrazil nuts, seafood, eggs, sunflower seedsKeshan disease (heart), weakened immunity
Iodinemineral150 mcgThyroid hormone production, metabolic regulationIodized salt, seaweed, fish, dairyGoiter, hypothyroidism, developmental delays
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