Micronutrients Explorer

Discover the essential vitamins and minerals your body needs, their functions, food sources, and signs of deficiency.

Vitamin Profiles

Vitamins are organic compounds that your body needs in small amounts for normal growth and function.

Select a Vitamin

Vitamin C
Vitamin D
Vitamin B12
Vitamin A
Vitamin K
Vitamin E
Vitamin B6
Folate (B9)

Vitamin C (Ascorbic Acid)

Primary Functions: Antioxidant protection, immune function, collagen production, wound healing, iron absorption

Daily Value: 90mg for adults

Type
Water-soluble
Stability
Heat-sensitive
Storage
60-90 days

Food Sources

Bell Peppers
Oranges
Kiwi
Broccoli
Strawberries
Tomatoes
Brussels Sprouts
Papaya
Absorption Tip: Vitamin C enhances iron absorption - pair with iron-rich foods! Cooking destroys vitamin C, so eat raw or lightly steamed.

Deficiency Signs

  • Fatigue and weakness
  • Bleeding gums
  • Slow wound healing
  • Dry, splitting hair
  • Rough, dry skin
  • Weakened immune system
  • Joint pain

Vitamin D (The Sunshine Vitamin)

Primary Functions: Calcium absorption, bone health, immune function, cell growth regulation, mood regulation

Daily Value: 20mcg (800 IU) for adults

Type
Fat-soluble
Source
Sunlight + Food
Storage
Months in fat

Food Sources

Fatty Fish
Cod Liver Oil
Egg Yolks
Fortified Milk
Mushrooms
Fortified Cereals
Beef Liver
Cheese
Absorption Tip: Get 15-30 minutes of sunlight daily and pair with healthy fats for better absorption. People with darker skin may need more sun exposure.
Toxicity Risk: High doses from supplements can cause calcium buildup in blood, nausea, and kidney problems. Stick to recommended doses.

Deficiency Signs

  • Bone pain and tenderness
  • Muscle weakness
  • Frequent infections
  • Fatigue and tiredness
  • Depression or mood changes
  • Hair loss
  • Back pain

Vitamin B12 (Cobalamin)

Primary Functions: Red blood cell formation, DNA synthesis, nerve function, energy production, brain health

Daily Value: 2.4mcg for adults

Type
Water-soluble
Storage
3-5 years in liver
Special Need
Stomach acid required

Food Sources

Shellfish
Liver
Red Meat
Eggs
Dairy Products
Fortified Foods
Nutritional Yeast
Fish
Absorption Tip: Vegans and older adults may need supplements due to limited plant sources and reduced stomach acid. B12 absorption decreases with age.

Deficiency Signs

  • Fatigue and weakness
  • Pale or jaundiced skin
  • Shortness of breath
  • Numbness or tingling in hands/feet
  • Vision problems
  • Mental confusion or memory issues
  • Difficulty walking

Vitamin A (Retinol & Carotenoids)

Primary Functions: Vision health, immune function, cell growth, skin health, reproduction, bone health

Daily Value: 900mcg for men, 700mcg for women

Type
Fat-soluble
Forms
Preformed & Provitamin
Storage
Liver storage

Food Sources

Sweet Potatoes
Carrots
Liver
Spinach
Kale
Eggs
Mangoes
Red Peppers
Absorption Tip: Cook vegetables and pair with healthy fats to enhance absorption of provitamin A carotenoids. Beta-carotene converts to active vitamin A as needed.
Toxicity Risk: Preformed vitamin A from supplements or liver can be toxic in high doses, causing liver damage and birth defects. Beta-carotene from plants is safe.

Deficiency Signs

  • Night blindness
  • Dry eyes and skin
  • Frequent infections
  • Delayed growth in children
  • Infertility issues
  • Poor wound healing
  • Acne and skin problems

Vitamin K (Phylloquinone & Menaquinone)

Primary Functions: Blood clotting, bone metabolism, heart health, calcium regulation

Daily Value: 120mcg for men, 90mcg for women

Type
Fat-soluble
Forms
K1 (plants) & K2 (fermented)
Storage
Limited storage

Food Sources

Leafy Greens
Broccoli
Brussels Sprouts
Fermented Foods
Meat
Cheese
Eggs
Natto
Absorption Tip: Pair with healthy fats for better absorption. Gut bacteria produce vitamin K2 - support gut health with probiotics and fiber.

Deficiency Signs

  • Easy bruising
  • Excessive bleeding
  • Heavy menstrual periods
  • Bleeding gums
  • Osteoporosis risk
  • Blood in urine/stool

Vitamin E (Tocopherols)

Primary Functions: Antioxidant protection, immune function, skin health, vision protection, cell communication

Daily Value: 15mg for adults

Type
Fat-soluble
Forms
8 different forms
Stability
Destroyed by heat

Food Sources

Sunflower Seeds
Almonds
Wheat Germ Oil
Spinach
Avocado
Broccoli
Shrimp
Olive Oil
Absorption Tip: Natural vitamin E (d-alpha-tocopherol) is better absorbed than synthetic forms. Store nuts and oils properly to prevent rancidity.
Toxicity Risk: High doses from supplements can interfere with blood clotting. Stick to food sources when possible.

Deficiency Signs

  • Muscle weakness
  • Vision problems
  • Immune system issues
  • Numbness and tingling
  • Difficulty walking
  • Dry, damaged skin

Vitamin B6 (Pyridoxine)

Primary Functions: Protein metabolism, red blood cell production, neurotransmitter synthesis, immune function, hormone regulation

Daily Value: 1.3-1.7mg for adults

Type
Water-soluble
Forms
Multiple active forms
Storage
Limited storage

Food Sources

Chickpeas
Tuna
Salmon
Potatoes
Bananas
Chicken
Fortified Cereals
Sunflower Seeds
Absorption Tip: Alcohol consumption increases B6 requirements. Cooking can destroy up to 50% of B6 in foods.
Toxicity Risk: Very high doses from supplements can cause nerve damage. Stick to recommended amounts.

Deficiency Signs

  • Anemia
  • Skin rashes
  • Depression
  • Confusion
  • Weakened immune function
  • Cracks around mouth
  • Numbness in hands/feet

Folate (Vitamin B9)

Primary Functions: DNA synthesis, cell growth, red blood cell formation, neural tube development in pregnancy

Daily Value: 400mcg for adults (600mcg for pregnancy)

Type
Water-soluble
Forms
Folate & Folic Acid
Stability
Heat-sensitive

Food Sources

Lentils
Leafy Greens
Asparagus
Avocado
Citrus Fruits
Beans
Fortified Grains
Beets
Absorption Tip: Natural folate from foods is better utilized than synthetic folic acid. Alcohol interferes with folate absorption and metabolism.

Deficiency Signs

  • Megaloblastic anemia
  • Fatigue
  • Gray hair
  • Mouth sores
  • Tongue swelling
  • Growth problems
  • Neural tube defects in pregnancy

Mineral Charts

Minerals are inorganic elements that play critical roles in bone health, fluid balance, and many other bodily functions.

Select a Mineral

Iron
Calcium
Magnesium
Zinc
Potassium
Selenium
Iodine

Iron

Primary Functions: Oxygen transport in blood, energy production, immune function, cognitive development, DNA synthesis

Daily Value: 18mg for women, 8mg for men

Types
Heme & Non-heme
Absorption
Vitamin C enhances
Storage
Ferritin in liver

Food Sources

Red Meat
Spinach
Lentils
Tofu
Pumpkin Seeds
Fortified Cereals
Dark Chocolate
Quinoa
Absorption Tip: Pair plant-based iron sources with vitamin C-rich foods and avoid tea/coffee with meals as tannins inhibit absorption.
Toxicity Risk: Iron overload can damage organs. Never take iron supplements without medical supervision.

Deficiency Signs

  • Fatigue and weakness
  • Pale skin
  • Shortness of breath
  • Headaches and dizziness
  • Cold hands and feet
  • Brittle nails
  • Poor appetite

Calcium

Primary Functions: Bone and teeth formation, muscle contraction, nerve signaling, blood clotting, hormone secretion

Daily Value: 1000-1300mg depending on age

Storage
99% in bones
Partner
Vitamin D required
Balance
Needs magnesium

Food Sources

Dairy Products
Sardines
Fortified Tofu
Leafy Greens
Almonds
Fortified Plant Milks
Broccoli
Oranges
Absorption Tip: Ensure adequate vitamin D levels and spread calcium intake throughout the day for better absorption. High sodium intake increases calcium loss.

Deficiency Signs

  • Muscle cramps and spasms
  • Numbness and tingling
  • Poor dental health
  • Brittle nails
  • Osteoporosis risk
  • Abnormal heart rhythm
  • Confusion and memory loss

Magnesium

Primary Functions: Energy production, muscle and nerve function, blood sugar control, blood pressure regulation, bone development

Daily Value: 400-420mg for men, 310-320mg for women

Distribution
50% in bones
Cofactor
300+ enzymes
Absorption
Decreases with age

Food Sources

Pumpkin Seeds
Almonds
Spinach
Dark Chocolate
Avocado
Bananas
Legumes
Whole Grains
Absorption Tip: Soak nuts and legumes to reduce phytates that inhibit absorption. Vitamin D enhances magnesium absorption.

Deficiency Signs

  • Muscle twitches and cramps
  • Mental disorders
  • Osteoporosis
  • Fatigue and weakness
  • High blood pressure
  • Asthma
  • Irregular heartbeat

Supplement Guidance

While food should be your primary source of nutrients, supplements can help fill nutritional gaps in certain situations.

When to Consider Supplements

  • Diagnosed deficiency by a healthcare provider
  • Restricted diets (vegan, vegetarian, food allergies)
  • Certain life stages (pregnancy, elderly)
  • Medical conditions affecting nutrient absorption
  • Limited sun exposure (Vitamin D)
  • Heavy menstrual bleeding (Iron)
  • Medications that deplete nutrients
  • Poor dietary intake despite efforts

Supplement Safety Tips

  • Consult with a healthcare provider before starting any supplement
  • Choose third-party tested brands for quality assurance
  • Follow recommended dosages - more is not always better
  • Be aware of potential interactions with medications
  • Monitor for side effects and discontinue if adverse reactions occur
  • Store supplements properly away from heat and moisture
  • Check expiration dates regularly
  • Start with one new supplement at a time to monitor effects
Back to Nutrition Guides

Complete Nutrient Reference

If the interactive explorer isn't working, here's a complete reference of essential micronutrients:

Key Vitamins

Essential Minerals