Fat soluble vitamins are a group of essential nutrients that dissolve in fats and oils. They are essential for various bodily functions and must be obtained through the diet. The four fat-soluble vitamins are vitamins A, D, E, and K.

Vitamin A
- Also known as retinol, it plays a vital role in vision, reproduction, immune function, and skin health.
- Found in animal products such as liver, eggs, and dairy, as well as in some plant-based foods like carrots, sweet potatoes, and spinach.

Vitamin D
- Known as the sunshine vitamin, it is essential for bone health as it helps the body absorb calcium and phosphorus.
- The body can produce vitamin D when exposed to sunlight, but it can also be obtained from fatty fish, egg yolks, and fortified foods such as milk and cereal.

Vitamin E
- Acts as an antioxidant, protecting cells from damage caused by free radicals.
- Found in nuts, seeds, and vegetable oils such as wheat germ, sunflower, and safflower.

Vitamin K
- Plays a crucial role in blood clotting and bone health.
- Found in leafy green vegetables, such as kale and spinach, as well as in some animal products like liver and egg yolks.

It is important to note that as fat-soluble vitamins can be stored in the body, excessive intake can lead to toxicity. Therefore, it is essential to consume these vitamins in moderation and to follow dietary recommendations.