These can be divided into two categories: fat-soluble and water-soluble. The difference comes down to how they act within the body. Fat-soluble vitamins are soluble in fats. They are absorbed by fat globules that travel through the small intestines and into the general blood circulation within the body.
Unlike water-soluble vitamins, fat-soluble vitamins are stored in the body when they are not in use. Typically, they are stored in the liver and fat tissues. Although only small amounts of these vitamins are necessary to maintain good health, Vitamin D deficiency has been reported as a growing public health concern. It has been associated with an increased risk of certain diseases.
Shop Tespo Vitamins. Examples include vitamin C and B-complex. On the other hand, fat-soluble vitamins are dissolved in the bloodstream in the form of fats. These vitamins travel through the small intestines, and the bloodstream plays the role of catalyst in distributing it throughout the body. Examples include vitamin A, D, E and K. Health benefits: Water-soluble vitamins such as vitamin B1 helps maintain nervous system function. Other B-complex variants of water-soluble vitamins, like B2 and B3, help promote good vision, healthy skin, and aids in digestion.
Fat-soluble vitamins such as vitamin A and D play an important role in bone and tooth formation, and vision. How are fat-soluble vitamins absorbed by the body? Dariush Mozaffarian, MD. Rather than slipping easily into the bloodstream like most water-soluble vitamins, fat-soluble vitam What is the right amount of a vitamin supplement to take? Bryce B. The daily tolerable upper intake level for vitamin A supplements according to age are:. The easiest way is to memorize the fat-soluble ones, as there are only four: vitamins A, D , E , and K.
All others are water-soluble. Because water-soluble vitamins dissolve in water right away. Once the body has as much of one as it needs, the rest gets flushed out of the body by the kidneys.
Excess fat-soluble vitamins, on the other hand, wind up stored in the liver , where they can build up to the point of causing damage. Several have upper limits for consumption, meaning that even though they aren't stored, they could cause problems if too much is circulating in the body. For example, a high level of vitamin B6 for an extended period of time is associated with nerve damage that cannot be reversed.
Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Water-soluble vitamins. Current Sports Medicine Reports. Fat-soluble vitamins: Clinical indications and current challenges for chromatographic measurement. Clin Biochem Rev. Colorado State University.
University of Michigan Health. Vitamins: Their functions and sources. Updated Dec 17,
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