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Vitamins and Minerals
Vitamin/Mineral Functions, Toxicities and Deficiencies, and RDA
116
Nutrition
Undergraduate 2
06/02/2021

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Cards

Term
Vitamin A Function
Definition
Vision, immunity, reproduction and growth
Term
Vitamin A Sources
Definition
Yellow/orange vegetables, eggs, full fat dairy, liver, dark leafy greens
Term
Vitamin A Toxicity
Definition
Osteoporosis(inhibits Vitamin D uptake); birth defects; yellow skin (liver damage).
Term
Vitamin A Deficiency
Definition
Skin becomes dry and scaly; risk of infectious disease; Blindness.
Term
Vitamin D Function
Definition
Bone formation and bone maintenance; Absorption of Calcium and Phosphorus, immunity
Term
Vitamin D Sources
Definition
Sun, sun baked mushrooms
Term
Vitamin D Toxicity
Definition
Hypercalcaemia, atherosclerosis
Term
Vitamin D Deficiency
Definition
Osteoporosis in adults and Rickets in children.
Term
Vitamin E Function
Definition
Antioxidant that protects Vitamin A and fatty acids from oxidation; Helps maintain cell membranes; red blood cell integrity.
Term
Vitamin E Sources
Definition
Nuts, seeds
Term
Vitamin E Toxicity
Definition
Interference with Vitamin K absorption leading to hemorrhaging (anti blood clotting).
Term
Vitamin E Deficiency
Definition
Red blood cell lysis, nerve damage, muscle weakness
Term
Vitamin K Function
Definition
Blood clotting.
Term
Vitamin K Sources
Definition
Green leafy veg
Term
Vitamin K Toxicity
Definition
Reduce effectiveness of anticoagulant drugs like Warfarin.
Term
Vitamin K Deficiency
Definition
Hemorrhaging can occur; Fat malabsorption.
Term
Vitamin B1 (Thiamin) Function
Definition
Energy metabolism (Glycolysis and TCA cycle)
Term
Vitamin B1 (Thiamin) Sources
Definition
Wholegrains, Legumes, nuts, seeds, pork, tuna
Term
Vitamin B1 (Thiamin) Toxicity
Definition
No adverse effects
Term
Vitamin B1 (Thiamin) Deficiency
Definition
Wernicke-Korsakoff syndrome (Alcoholics)
Beriberi: Wet- Cardiovascular Problems, Dry - muscle weakness
Term
Vitamin B2 (Riboflavin) Function
Definition
Serves as a coenzyme in energy metabolism (FAD2 electron carrier).
Term
Vitamin B2 (Riboflavin) Sources
Definition
Milk, wholegrains
Term
Vitamin B2 (Riboflavin) Toxicity
Definition
No adverse effects
Term
Vitamin B2 (Riboflavin) Deficiency
Definition
Inflammation of membranes (eyes, skin, mouth, GI tract).
Term
Vitamin B3 (Niacin) Function
Definition
Serves as a coenzyme in energy metabolism (NADH electron carrier).
Term
Vitamin B3 (Niacin) Sources
Definition
Wholegrains, protein foods
Term
Vitamin B3 (Niacin) Toxicity
Definition
Naturally occurring niacin= No harm
Supplementation= Niacin flush can occur
Term
Vitamin B3 (Niacin) Deficiency
Definition
Pellagra- 3 D's
Dermatitis, Diarrhea, Dementia
Term
Pantothenic Acid Function
Definition
Part of Coenzyme A (COA). Energy metabolism, lipid synthesis, steroid hormones
Term
Pantothenic Acid (Vitamin B5) Sources
Definition
Almost all foods
Term
Pantothenic Acid (Vitamin B5) Toxicity
Definition
No known toxicity. Only adverse effect was diarrhea after extremely high doses (10-20g).
Term
Pantothenic Acid (Vitamin B5) Deficiency
Definition
Very rare, burning feet syndrome
Term
Vitamin B6 (Pyridoxine) Function
Definition
Energy, protein & urea metabolism, amino acid & nucleic acid synthesis
Term
Vitamin B6 (Pyridoxine) Sources
Definition
Protein foods, starchy veg, non-citrus fruits
Term
Vitamin B6 (Pyridoxine) Toxicity
Definition
Irreversible nerve damage
Term
Vitamin B6 (Pyridoxine) Deficiency
Definition
Scaly dermatitis, anemia. Alcohol contributes to the destruction of B6.
Term
Folic Acid (Vitamin B9) Function
Definition
Helps make DNA for new cells, B12 activation
Term
Folic Acid (Vitamin B9) Sources
Definition
Plant foods
Term
Folic Acid (Vitamin B9) Toxicity
Definition
Masks B12 deficiency
Term
Folic Acid (Vitamin B9) Deficiency
Definition
Anaemia, birth defects
Term
Vitamin B12 (Cobalamin) Function
Definition
Helps make DNA for new cells, activates folate, protects nerve cells
Term
Vitamin B12 (Cobalamin) Sources
Definition
Animal products
Term
Vitamin B12 (Cobalamin) Toxicity
Definition
No known Toxicity and UL
Term
Vitamin B12 (Cobalamin) Deficiency
Definition
Anaemia, irreversible nerve damage and paralysis
Term
Vitamin C (Ascorbic Acid) Function
Definition
Antioxidant that protects against free radicals; Protects tissues from oxidative stress (disease prevention); enhances iron absorption.
Term
Vitamin C (Ascorbic Acid) Sources
Definition
Fruit and veg
Term
Vitamin C (Ascorbic Acid) Toxicity
Definition
Diarrhea, GI distress
Term
Vitamin C (Ascorbic Acid) Deficiency
Definition
Scurvy
Term
Sodium Function
Definition
Nerve impulse transmission; muscle contractions; Electrolyte balance
Term
Sodium Sources
Definition
Table salt, soy sauce
Term
Sodium Toxicity
Definition
Oedema, hypertension, calcium excretion
Term
Sodium Deficiency
Definition
Muscle cramps, loss of appetite, mental apathy
Term
Chloride Function
Definition
Helps maintain electrolyte balance; major part of hydrochloric acid (HCl).
Term
Chloride Sources
Definition
Table salt, Animal products
Term
Chloride Toxicity
Definition
Acidosis, toxicity
Term
Chloride Deficiency
Definition
Rare. Alkalosis, dehydration.
Term
Potassium Function
Definition
Principal ion of intracellular fluid; nerve impulse transmission, muscle contractions.
Term
Potassium Sources
Definition
Almost all foods
Term
Potassium Toxicity
Definition
Unlikely. Hyperkalemia- muscular weakness, vommiting.
Term
Potassium Deficiency
Definition
Hypokalemia- fatigue, muscle weakness, cardiac arrhytmias, hypertension, glucose intolerance
Term
Calcium Function
Definition
Bone formation; muscle contraction; neurotransmitter release; blood pressure
Term
Calcium Sources
Definition
Dairy, fortified foods, green leafy veg
Term
Calcium Toxicity
Definition
Hypercalcemia- constipation, kidney dysfunction, interfere with mineral (iron )absorption, urinary stones
Term
Calcium Deficiency
Definition
Hypocalcemia- osteomalacia leading to osteoporosis, muscle spasms
Term
Phosphorus Function
Definition
Bone and teeth, DNA & RNA component, Energy ATP, phospholipids
Term
Phosphorus Sources
Definition
Animal products, green veg
Term
Phosphorus Toxicity
Definition
Calcification of non-skeletal tissues (kidneys)
Term
Phosphorus Deficiency
Definition
Osteoporosis, anxiety, irratibility, irregular breathing. In children, poor bone and teeth development can occur.
Term
Magnesium Function
Definition
Mineralisation of bone and teeth, enzyme function, muscle contraction
Term
Magnesium Sources
Definition
Plant foods (nuts, legumes, grains, green leafy veg, dark choc), seafood
Term
Magnesium Toxicity
Definition
Diarrhoea, nausea, dehydration
Term
Magnesium Deficiency
Definition
Muscle weakness, cramps, confusion, convulsions
Term
Iron Function
Definition
Oxygen transport (haemoglobin), energy metabolism (ETC), oxidation-reduction reactions, DNA function, brain function
Term
Iron Sources
Definition
Meats, soy products, dried apricots , legumes
Term
Iron Toxicity
Definition
Diarrhoea, rapid heartbeat, fatigue, liver damage
Term
Iron Deficiency
Definition
Anaemia, impaired energy metabolism, behavioural changes (Pica), low cold tolerance
Term
Zinc Function
Definition
Part of insulin, enzyme function, DNA repair
Term
Zinc Sources
Definition
Oysters, cheese, protein foods, some grains and veg
Term
Zinc Toxicity
Definition
Loss of appetite, impaired immunity, low HDL, copper & iron deficiencies
Term
Zinc Deficiency
Definition
Poor wound healing, impaired growth, fatigue
Term
Iodine Function
Definition
Thyroid hormone synthesis
Term
Iodine Sources
Definition
Iodised salt, seafood
Term
Iodine Toxicity
Definition
Hyperthyroidism
Term
Iodine Deficiency
Definition
Hypopthyroidism, brain damage (Cretinism), goitre
Term
Selenium Function
Definition
Antioxidant, regulate thyroid production
Term
Selenium Sources
Definition
Brazil nuts, seafood
Term
Selenium Toxicity
Definition
Loss and brittleness of hair, fatigue
Term
Selenium Deficiency
Definition
Heart Disease (Keshan Disease).
Term
Copper Function
Definition
Haemoglobin formation, enzymes
Term
Copper RDA
Definition
900 ug/day for adults
Term
Copper Toxicity
Definition
Liver Damage.
Term
Copper Deficiency
Definition
Anaemia, bone abnormalities
Term
Manganese Function
Definition
Cofactor of enzymes that facilitate metabolism; bone formation; Conversion of pyruvate to a TCA cycle compound.
Term
Manganese Sources
Definition
Nuts, wholegrains, leafy veg
Term
Manganese Toxicity
Definition
Neurological Dysfunction
Term
Manganese Deficiency
Definition
Rare
Term
Fluoride Function
Definition
Found in bones and teeth and prevents dental decay.
Term
Fluoride Sources
Definition
Drinking water, tea, seafood
Term
Fluoride Toxicity
Definition
Fluorosis (pitting and discolourisation) of teeth
Term
Fluoride Deficiency
Definition
Dental decay.
Term
Chromium Function
Definition
Enhances insulin, improves glucose tolerance
Term
Chromium Sources
Definition
Meats, wholegrains
Term
Chromium Toxicity
Definition
None
Term
Chromium Deficiency
Definition
Diabetes-like symptoms - impaired glucose tolerance
Term
Sulphur Function
Definition
Stabilise proteins (disuplhide bridges), part of biotin, thiamin and insulin
Term
Sulphur Sources
Definition
Protein foods
Term
Sulphur Deficiency
Definition
None
Term
Sulphur Toxicity
Definition
Suppress growth
Term
Molybdenum Function
Definition
Cofactor for several enzymes
Term
Molybdenum Sources
Definition
Legumes, cereals, nuts
Term
Molybdenum Deficiency
Definition
None
Term
Molybdenum Toxicity
Definition
None
Term
Manganese Functions
Definition
Bone formation, co-factor for several enzymes
Term
Manganese Sources
Definition
Nuts, wholegrains, leafy greens, tea
Term
Manganese Deficiency
Definition
Rare
Term
Manganese Toxicity
Definition
Non dietary
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