Which type of vitamin dissolves in water?

Water-soluble vitamins are those that dissolve in water, making them different from fat-soluble vitamins, which require fats for absorption and storage in the body. The water-soluble vitamins include the B-complex vitamins and vitamin C. These vitamins are easily absorbed into the bloodstream and excess amounts are usually excreted through urine, which means they need to be consumed more regularly to maintain adequate levels in the body.

Other categories like fat-soluble vitamins or minerals do not fall under the classification of water-solubility. Fat-soluble vitamins include vitamins A, D, E, and K, which are stored in the liver and fatty tissues and do not dissolve in water. Minerals, on the other hand, are inorganic nutrients and not classified under vitamins, while essential vitamins is a broad term that encompasses necessary vitamins but does not specifically indicate their solubility. Thus, it is clear that water-soluble vitamins are specifically defined by their ability to dissolve in water, affirming that this is the correct answer.