For other uses of the word, see discursive. Discursive Psychology (DP) is a form of discourse analysis that focuses on psychological themes in talk, text and images.
The vitamins include vitamin D, vitamin E, vitamin A, and vitamin K, or the fat-soluble vitamins, and folate (folic acid), vitamin B12, biotin, vitamin B6, niacin, thiamin, riboflavin, pantothenic acid, and vitamin C (ascorbic acid), or the water-soluble vitamins.
Related Topics. Vitamins are a group of substances that are essential for normal cell function, growth, and development. There are 13 essential vitamins, meaning they are needed for the body to function. Fat-soluble vitamins are stored in the body's fatty tissue.