Tuesday, January 11, 2011

Facts About Vitamins

We all know that vitamins and minerals are important but what do they do and how much do we need?  Let's take a closer look!



NAME

MAIN FUNCTIONS

SOURCES

DEFICIENCY SYMPTOMS

RDA/

DRI/

AI







VITAMIN A

Helps skin and eyes remain healthy; promotes growth
Dark green leafy vegetables, cantaloupe, fish, liver carrots and sweet potatoes
Night blindness
Dry scaly skin
M: 1000 ug RE
F: 800 ug RE
VITAMIN D

Helps with calcium and phosphorus metabolism; maintains optimal calcification of bone
Sunlight, egg yolks, fortified milk and cereal
Soft bones or rickets
Osteomalacia
AI 5-10 ug
VITAMIN E

Antioxidant, helps resist hemolysis of red blood cells
Vegetable oils, whole grains and green vegetables
Hemolysis of red blood cells; nerve destruction
M: 10 mg
F: 8 mg
VITAMIN K

Forms prothrombin in the liver; aids in blood clotting
Spinach, kale, dark green leafy vegetables
Hemorrhage

Affected by mineral oil, antibiotics & anticoagulants
M: 80 ug
F:  65 ug

VITAMIN B1

(THIAMIN)
Oxidation of carbohydrates; nerve functions
Whole grains, wheat germ, pork and liver
Muscle weakness, Beri Beri, memory loss
M:  1.2 mg
F:  1.1 mg
VITAMIN B 2
(RIBOFLAVIN)
Helps release energy from protein
Liver, kidney, meat and milk
Growth failure, cheilosis (cracked lips), eye disorders
M: 1.3 mg
F: 1.1 mg
NIACIN

Helps with carbohydrate, fat and protein metabolism
Protein foods, peanuts, mushrooms, bran, enriched grains
Pellagra, dermatitis, diarrhea
M:  16 NE
F:  14 NE
FOLATE

DNA synthesis, forms red blood cells in the bone marrow
Liver, kidney, citrus fruits, green leafy vegetables
Megaloblastic anemia; inflammation of the tongue, diarrhea, mental disorders
400 ug
(800 ug for pregnant women)
B 6

Co-enzyme in amino acid metabolism, deamination & transamination
Meat, wheat, corn, yeast, pork, liver
Seizures, anemia, headaches, nausea, vomiting, flaky skin
M: 1.3 - 1.7 mg
F:  1.3 – 1.5 mg
B 12

Co-enzyme in protein synthesis; helps form red blood cells
Liver, meat, milk; very few non-animal sources
Macrocytic or pernicious anemia
2.4 ug
PANTOTEHNIC ACID
Co-enzyme A; energy synthesis of fatty acids
Animal foods, grains, legumes
Decreased appetite; tingling in hands and feet, nausea
AI 5 mg
ASCORBIC ACID

(VITAMIN C)

Strengthens inter cellular structures, wound healing, aids in iron absorption
Citrus fruits, potatoes, dark green leafy vegetables, yellow vegetables
Scurvy, poor wound healing, increased susceptibility to colds/flu
60 mg

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