Which of the following is true about fat-soluble vitamins?

Fat-soluble vitamins are characterized by their ability to dissolve in fats and oils, which allows them to be stored in the body's fatty tissues and liver. This storage capability distinguishes them from water-soluble vitamins, which are not stored in the body and need to be consumed more regularly, sometimes daily, to avoid deficiencies.

Vitamins such as A, D, E, and K are classified as fat-soluble because they are absorbed along with dietary fats and can accumulate in the liver and adipose (fat) tissues. This means that the body can draw on these stored vitamins when necessary, which is why they do not need to be consumed every day.

The other options provide information that does not accurately describe the characteristics of fat-soluble vitamins. For instance, their storage capability and the fact that they are not typically excreted in urine—unlike water-soluble vitamins—further clarify their unique role in nutrition. Additionally, the reference to B vitamins is misleading because they include water-soluble vitamins, while fat-soluble vitamins are specifically A, D, E, and K.