What are Fat-Soluble Vitamins?
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Posted by Jennifer Murray Aug 18, 2008 |
Unlike water-soluble vitamins, fat-soluble vitamins do not dissolve in water and are actually stored in the fat in our body and in the liver. Since fat-soluble vitamins do not dissolve in water, the body actually stores them, which can lead to a buildup and vitamin toxicity.
The fat-soluble vitamins are:
- Vitamin A
- Vitamin D
- Vitamin E
- Vitamin K
Even though these vitamins are stored in the body, it's still next to impossible to eat enough food to actually overdose on fat-soluble vitamins. The most likely way for vitamin toxicity occurs in regards to these vitamins is through supplementation.
Why Do We Need Fat-Soluble Vitamins?
Both vitamins A and D both play a role in building and maintaining strong bones and teeth. Vitamin A also helps our vision and skin. Vitamin D also plays a key role in our bodies absorbing and using calcium.
Vitamin E helps the body form red blood cells and muscles, while Vitamin K is essential for blood clotting. Some research has suggested that vitamin K may also help maintain strong bones in the elderly.
While eating a healthy diet is the best way to ensure adequate intake of fat-soluble vitamins, researchers also recommend taking a daily multivitamin that contains 400 to 800 IU of vitamin D.