Question: Which of the following is not a fat soluble vitamin?
A Vitamin A
B Vitamin B
C Vitamin D
D Vitamin E
Answer: Vitamin B
| Characteristic | Fat-Soluble Vitamins | Water-Soluble Vitamins |
| Solubility | · Soluble in fats
· Insoluble in water |
· Soluble in water
· Insoluble in fats |
| Examples
|
· Vitamin A (retinol)
· Vitamin D (calciferol) · Vitamin E (tocopherol) · Vitamin K (phylloquinone)
|
· Vitamin B1
· Vitamin B2 · Vitamin B3 · Vitamin B5 · Vitamin B6 · Vitamin B7 · Vitamin B9 · Vitamin B12 · Vitamin C |
| Daily Requirement | · These vitamins are often required in smaller quantities | · These vitamins are needed in relatively larger amounts |
| Functions | · Vitamin A is essential for vision
· Vitamin D is necessary for calcium absorption and bone health · Vitamin E is an antioxidant · Vitamin k helps in blood clotting |
· These vitamin works as a coenzymes in various metabolic reactions
· Used in energy production · These vitamins support immune system |
| Sources |
· Animal products · Nuts · Seeds |
· Abundant in a variety of foods including fruits
· Vegetables · Grains |
| Absorption | · These vitamin requires dietary fats for their absorption | · These vitamin can easily absorbed in the digestive tract |
| Storage in the Body | · Can be stored in the liver and fatty tissues | · Excreted in urine if not immediately used |
| Toxicity Risk | · If these vitamin are consumed in excess, they can build up to toxic levels in the body | · Being water soluble, they are easily excreted from the body so there is generally low risk of toxicity if present in excess |