They are stored in your liver and fatty tissue.They are soluble in lipids (fats). Storage and Longevity
Characteristics of Fat Soluble Vitamins. Fat-soluble vitamins have specific characteristics that help differentiate them from other vitamins. Storage: Fat-soluble vitamins are stored in your liver and fatty tissue. Longevity: Fat-soluble vitamins last longer in your body, because you do not need them every day. In summary, vitamins A, D, E, and K are classified as fat-soluble vitamins. Fat-soluble vitamins dissolve in fat and can be stored in your liver and fatty tissue until needed. They have a multitude of functions that range from keeping your heart working properly to allowing your blood to clot. Vitamins are natural substances found in plants and animals and known as Essential nutrients for human beings. The name vitamin is obtained from vital amines as it was originally thought that these substances were all amines. Human body uses these substances to stay healthy and support its many functions. Vitamins, one of the most essential nutrients required by the body and can be broadly classified into two main categories i.e., water-soluble vitamins and fat-soluble vitamins. Water-soluble vitamins cannot be stored in the body, so you need to get them from food every day. They can be destroyed by overcooking. Fat-soluble vitamins, which are A, D, K and E, absorb with the help of fat and are stored in fat deposits throughout your body, as well as in your liver. Vitamin A, from dairy, dark leafy greens and eggs, includes a series of carotenoids and phytochemicals that protect your eyes and vision. These vitamins do not stay in your body, rather your system uses what it needs in a short period of time and then excretes any excess through urine. Because water-soluble vitamins do not have a storage place in the body, you need to get them from your daily diet. body organs, and for various metabolic processes. People depend on nutrients in their diet because the human body is not able to produce many of these nutrients—or it cannot produce them in adequate amounts. Nutrients are essential to the human diet if they meet two characteristics. First, omitting the nutrient from the diet leads to a nutritional deficiency and a decline in some aspect of health In sum, to respond to your questions:  1 The difference (if any) between vitamins that are water soluble and those that are not -- There is a big difference between the water soluble vitamins and the fat soluble vitamins and this is absolutely a critical distinction.  2 Specifically Vitamin E -- Vitamin E is a fat soluble vitamin. Vitamins are classified as either fat soluble (vitamins A, D, E and K) or water soluble (vitamins B and C). This difference between the two groups is very important. It determines how each vitamin acts within the body. The fat soluble vitamins are soluble in lipids (fats) Doctor's Answer: Vitamins are classified as either fat soluble (vitamins A, D, E and K) or water soluble (vitamins B and C). This difference between the two groups is very important. It determines how each vitamin acts within the body. The fat soluble vitamins are soluble in lipids (fats). Nine of the water-soluble vitamins are known as the B-complex group: Thiamin (vitamin B1), Riboflavin (vitamin B2), Niacin, Vitamin B6, Folate, Vitamin B12, Biotin, Pantothenic acid and Vitamin C. These vitamins are widely distributed in foods. Vitamins, one of the most essential nutrients required by the body and can be broadly classified into two main categories i.e., water-soluble vitamins and fat-soluble vitamins. Water-soluble vitamins cannot be stored in the body, so you need to get them from food every day. They can be destroyed by overcooking. Vitamins fit into one of two categories: water-soluble or fat-soluble. They are classified based on how they dissolve in your body. Water-soluble vitamins dissolve in water, while fat-soluble vitamins dissolve in fat. These vitamins do not stay in your body, rather your system uses what it needs in a short period of time and then excretes any excess through urine. Because water-soluble vitamins do not have a storage place in the body, you need to get them from your daily diet.
http://study.com/academy/lesson/what-are-fat-soluble-vitamins-definition-functions-characteristics-examples.html http://www.whereincity.com/medical/vitamins/ http://healthyeating.sfgate.com/basic-two-classes-vitamins-5263.html http://www.diet.com/g/nutrients http://www.medicinenet.com/script/main/art.asp?articlekey=10736 http://www.medicinenet.com/script/main/art.asp?articlekey=10736 http://www.whereincity.com/medical/vitamins/ http://healthyeating.sfgate.com/basic-two-classes-vitamins-5263.html
what are two defining characteristics of vitamins