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Vitamins & Minerals
Vitamins and minerals are some of the smallest molecules in our bodies, yet they play a huge role in our health.
Why They’re Important
One of their main functions in our bodies is the facilitation of chemical reactions. These reactions are crucial for:
- Tissue growth, maintenance, and repair
- Energy utilization from carbohydrates, protein, and fat
- Muscle contraction
- Nerve transmission
- Oxygen transportation in blood
- Free radical scavenging (antioxidant properties)
Optimal vitamin and mineral status is also crucial for peak performance in most day-to-day activities, but especially in athletics. Deficiencies occur when one’s vitamin, mineral, or electrolyte status is low, and is often caused by an illness or condition. Toxicities occur when one’s vitamin or mineral level is too high. Toxicity is often caused by taking vitamins or mineral supplements that contain 100% or greater of a vitamin or mineral’s daily requirement.
Vitamin/Mineral
Status and Body Function

Body
Function


Vitamin/Mineral Intake
Sources & Requirements
There are several steps one must take to achieve optimal vitamin, mineral, and electrolyte status. One of the most important steps to take is to go for nutrient dense foods. These foods, as I explained before, offer the most nutrients for the calories they provide. Some of the most nutrient dense foods are fruits, vegetables, monounsaturated fats, whole grains, and lean proteins. I have included a chart below, outlining sources, requirements, and other tidbits for each vitamin, and mineral essential to our bodies.
Supplements
Though it isn’t the best way to obtain nutrients, optimal nutritional status can be achieved by taking supplements. For some people supplements are necessary due to low calorie diets, diet restrictions (vegan diet, religious affliction), food allergies or intolerances, pregnancy, traveling frequently, or a disease or condition that affects vitamin or mineral status. The best way to obtain these nutrients, however, is through food. Vitamins and minerals are absorbed more efficiently through foods and their biological value is higher when they come from foods. If you do take supplements try to avoid taking any supplement that provides 100% or greater of a given nutrient’s daily requirement as this can cause toxicity.
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Vitamin/Mineral
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Function
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Requirement
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Food Sources
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Deficiency Symptoms
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Toxicity Symptoms
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Vitamin A
(Carotenoids)
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Teeth, skin, eye health
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M=900 mcg/D
F=700 mcg/D
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Eggs, meat, dairy, orange colored fruits and vegetables
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Poor night vision
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Birth defects, orange-colored skin
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Vitamin B1
(Thiamine)
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Conversion of food to energy
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M= 1.2 mg/D
F= 1.1 mg/D
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Whole grain pastas, breads, and cereals, lean meats, dried beans
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Weakness, fatigue, extreme deficiency results in Beriberi, Korsakoff, and Wernicke’s Syndrome
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None
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Vitamin B2
(Riboflavin)
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Cell growth, red blood cell production, convert food to energy
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M=1.3 mg/D
F=1.1 mg/D
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Lean meats, dairy, nuts, legumes, green leafy vegetables
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Anemia, sores in mouth, lips and throat
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None
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Vitamin B3
(Niacin)
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Digestive skin and nerve function, convert food to energy
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M= 16 mg/D
F= 14 mg/D
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Dairy, poultry, fish, nuts, eggs
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Pellagra, inflamed skin and nerves, digestive issues
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Liver damage, peptic ulcers, rashes
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Vitamin B5
(Pantothenic acid)
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Convert food to energy, hormone production
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Both M + F= 5 mg/D
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Meats, legumes, yeast, eggs, milk, whole grains
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Rare
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Rare
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Vitamin B6
(Pyridoxine)
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Immune system, red blood cell production, nerve function, protein breakdown
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M (14-50)= 1.3 mg/D, (51+)=1.7 mg/D
F (19-50)=1.3 mg/D, (51+)= 1.5 mg/D
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Beans, nuts, eggs, meats, whole grains
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Mouth and tongue sores, altered mental status
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Neurologic issues
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Vitamin B7
(Biotin)
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Convert food to energy
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Both M + F=30 mg/D
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Eggs, green leafy vegetables, whole grains
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Rare
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None
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Vitamin B9
(Folic acid, Folate)
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Cell production
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M=400 mcg/D
F (14-50)= 800 mcg/D, (51+)= 400 mcg/D
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Green leafy vegetables, fruits, legumes, nuts, peas
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Birth defects if mother is deficient, anemia, diarrhea
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None
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Vitamin B12
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Metabolism, red blood cell formation, nervous system maintenance
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Both M + F= 2.4 mcg/D
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Meat, dairy, shellfish, poultry
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Pernicious anemia, numbness and tingling in arms and legs, weakness
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None
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Vitamin C
(Ascorbic acid)
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Cell growth, collagen production in tissues, antioxidant
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M=90mg/D
F=75mg/D
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Fruits and vegetables, green peppers, citrus fruits, strawberries, tomatoes
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Dry skin and hair, bleeding nose and gums, extreme deficiency results in scurvy
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Diarrhea, upset stomach
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Vitamin D
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Calcium absorption
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Both M + F (14-50)=5 mcg/D, (51-70)=10mcg/D, (71+)=15 mcg/D
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Dairy products, fish, fortified cereals
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Osteoporosis (adults), rickets (children)
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Kidney stones, vomiting
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Vitamin E
(Tocopheral)
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Antioxidant, red blood cell growth, vitamin K function
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Both M+F= 15mg/D
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Wheat germ, corn, nuts, olives, vegetable oils, spinach
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Hemolytic anemia
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None
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Vitamin K
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Blood clotting
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Both M + F= 90 mcg/D
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Cabbage, cauliflower, green leafy vegetables, cereals
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Bruising, nose and gums bleeding
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Rare
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Potassium
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Acid/base regulation, protein synthesis, neuromuscular function
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Both M+F= 4.7 g/D
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All fruits and vegetables, meats
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Muscle cramping, weakness, constipation, heart palpitations
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Nausea, weak and irregular heart beat
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Sodium
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Blood pressure regulation, neuromuscular function
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Both M+F= 1500 mg/D
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Processed foods, table salt, milk, beets
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Confusion, muscle cramping, weakness
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High blood pressure
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Chloride
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Acid/base regulation, digestion, fluid balance
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Both M+F= (14-51)2.3g/D
(50-71)2.0g/D
(71+) 1.8g/D
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Table salt, vegetables
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Low blood pressure, weakness
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None
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Phosphorus
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Bone and teeth health, conversion of food to energy
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Both M+F= 700 mg/D
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Meats, dairy products, nuts
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Bone weakness
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None
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Magnesium
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Muscle function, enzyme function, energy utilization
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M= 400-420 mg/D
F= 300-320 mg/D
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Nuts, whole grains, soy products
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Weakness, drowsiness
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None
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Zinc
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Immune function, cell growth, Sperm development
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M=11mg/D
F=8mg/D
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Beef, pork, lamb, peanuts, legumes
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Hair loss, decrease in appetite, skin lesions
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Diarrhea, nausea, vomiting
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Iron
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Red blood cell development, protein element
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M=8mg/D
F=(19-51) 18mg/D, (51+) 8mg/D
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Beans, dried fruit, eggs, red meats, tuna, salmon, spinach
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Anemia, weakness, shortness of breath, dizziness, headache
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Fatigue, dizziness, nausea, vomiting
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Manganese
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Enzyme function, conversion of food to energy
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M=2.3 mg/D
F=1.8 mg/D
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Green leafy vegetables, nuts, whole grains
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Rare
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Rare
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Copper
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Red blood cells maintains blood vessels, bone, nerve and immune tissues
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Both M+F= 900 mcg/D
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Oysters, shellfish, whole grains, beans, nuts, potatoes
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Anemia, osteoporosis
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Brain disorders, kidney failure
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Calcium
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Bone health, muscle contraction, blood clotting, nerve impulses
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Both M+F
(19-50) =1000mg/D
(51+)=1200mg/D
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Dairy, green leafy vegetables, shellfish, fortified products
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Osteoporosis/ osteopenia, hypertension, irregular heart beat
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Kidney stones
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Iodine
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Metabolism, conversion of food to energy, thyroid function
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Both M+F= 150 mcg/D
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Iodized salt, seafood, dairy products, plants grown in iodine rich soil
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Goiter, hypothyroidism, decreased thyroid function
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Rare
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Selenium
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Antioxidant properties, possible prevention of cancer
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Both M+F= 55mcg/D
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Vegetables, seafood, red meat, whole grains, poultry, garlic
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Dashan disease, abnormalities in heart muscle
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Hair loss, nausea, irritability, fatigue
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Molybdenum
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Antioxidant properties, DNA production, metabolism
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Both M+F= 45 mcg/D
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Milk, spinach, peas, grains
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Metabolic disorders
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Joint pain, diarrhea, anemia
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Back to Nutrients homepage
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Why They’re Important
Sources & Requirements
Supplements

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