Which type of vitamins are A, D, E, and K classified as?

A, D, E, and K are classified as fat-soluble vitamins. This classification is based on their solubility in fats and oils, allowing them to be absorbed along with dietary fat in the intestines. Unlike water-soluble vitamins, which dissolve in water and are excreted through urine, fat-soluble vitamins can be stored in the body's fatty tissues and liver, which means they do not need to be consumed as frequently.

These vitamins play critical roles in various bodily functions; for example, vitamin A is essential for vision and immune function; vitamin D is crucial for calcium absorption and bone health; vitamin E acts as an antioxidant; and vitamin K is necessary for blood clotting and bone metabolism. Understanding these classifications helps in recognizing how the body processes different nutrients and the impact on overall health.