Fat Soluble Vitamins

Fat soluble vitamins require special fat molecules called chylomicrons to be absorbed with them into the lymphatic system prior to entering the blood. Once they do enter the bloodstream, proteins are needed to carry them through the blood vessels. Because excess amounts are stored in the fatty tissue, it is possible to accumulate such large doses that these fat soluble vitamins can become toxic. They do not need to be consumed each day due to the fact that they are stored in the body.


Dudek, Susan G. Nutrition Essentials for Nursing Practice 4th Edition. Lippincott, Williams and Wilkins. Philadelphia: 2001. p107-109.

Daily RequirementsFunctionSources
Vitamin A1000 mcg for men, 800 mcg for womenProper development of teeth and bones, proper working of immune system, proper development and functioning of vision especially in dim light, maintenance of healthy skin, hair and gumsCarrots, liver, dairy products (such as milk, cheese), butter, leafy greens (such as spinach, kale, collards), red peppers, pumpkin, yams
Vitamin D5 mcg (up to age 50)Maintain calcium levels in the blood (this vitamin is extremely important in conjunction with calcium to prevent bone loss)Sunlight, liver, egg yolks, milk
Vitamin E15 mgKey in functioning and protection of membranes around cells in the bodyMargarine, salad dressing, vegetable oils, nuts and seeds
Vitamin K90 mcg for women, 120 mcg for menPlays a major role in creation of proteins necessary for blood clottingGreen leafy vegetables, liver, cabbage, milk

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