Waardenburg syndrome. Waardenburg syndrome: Introduction. Waardenburg syndrome: The disease was named for Petrus Johannes Waardenburg, a Dutch ophthalmologist (1886-1979) who was the first to notice that people with two different colored eyes ... more about Waardenburg syndrome.
As a result, most of the fat-soluble vitamins (such as the vitamins A, D, E, and K) that contain amounts above the daily allowance are drug products. The daily dosage of a vitamin supplement for example cannot exceed 300% of the recommended daily allowance, and for vitamin A, this limit is even lower (200%).
The word âsolubleâ actually means âable to be dissolved.â Whether a vitamin is classified as 'fat-soluble' or 'water-soluble' has to do with how the vitamin is absorbed, stored and removed from the body. Water-Soluble Vitamins. All B vitamins and vitamin C are water-soluble.Water-soluble vitamins are easily dissolved in the body. The kidneys remove excess amounts of these vitamins so they can be excreted in the urine. Still, this doesn't mean that you can take vitamins B and C in unlimited quantities.at-Soluble Vitamins. The fat-soluble vitamins are A, D, E, and K. Fat-soluble vitamins are absorbed in the lymph, transported in the blood, and can be stored in the liver and fatty tissues for use as needed. The fat-soluble vitamins are the ones you really need to be careful about.