What is vitamin A function?

What is vitamin A function?

Function. Vitamin A helps form and maintain healthy teeth, skeletal and soft tissue, mucus membranes, and skin. It is also known as retinol because it produces the pigments in the retina of the eye. Vitamin A promotes good eyesight, especially in low light.

What are the three forms of vitamin A and their function?

There are 3 forms of vitamin A (retinol, retinal, and retinoic acid) that collectively are known as retinoids….Other functions that vitamin A is important for include:

• Growth and development.
• Reproduction.
• Immune function.

What are the functions of vitamins and minerals in the body?

Vitamins are vital for immune system function, energy production and strengthening of bones, notes nutrition expert Shereen Lehman for About.com. Minerals are essential for muscle contraction, maintenance of teeth and bones, nervous system function and fluid balance.

Are there 13 vitamins that are essential for body function?

There are 13 vitamins that are essential for body function. Because these vitamins are so vital to good health, it is important to understand their roles and functions. All essential vitamins can be found in food sources as well as supplemented in various forms.

Where do water soluble vitamins go in the body?

Water-soluble vitamins travel freely through the body, and excess amounts usually are excreted by the kidneys. The body needs water-soluble vitamins in frequent, small doses. These vitamins are not as likely as fat-soluble vitamins to reach toxic levels. But niacin, vitamin B6, folate, choline, and vitamin C have upper consumption limits.

What is the function of vitamin C in the body?

Vitamin C 1 It is water-soluble. 2 Function: It contributes to collagen production, wound healing, and bone formation. 3 Deficiency: This may result in scurvy, which causes bleeding gums, a loss of teeth, and poor tissue growth and wound healing. 4 Good sources: These include fruit and vegetables, but cooking destroys vitamin C.

What are the principal functions of vitamins?

The principal function of vitamins is that it allows our body to grow and develop. Vitamins also play vital roles in bodily functions such as metabolism, immunity, and digestion.

What are the 13 types of vitamins?

There are 13 Vitamins Your Body Needs. They are vitamins A, C, D, E, K and the B vitamins ( thiamine , riboflavin , niacin , pantothenic acid , biotin , vitamin B-6, vitamin B-12 and folate ). You can usually get all your vitamins from the foods you eat.

What are the essential vitamins for humans?

The essential nutrient elements for humans, listed in order of Recommended Dietary Allowance (expressed as a mass), are potassium, chloride, sodium, calcium, phosphorus, magnesium, iron, zinc, manganese, copper, iodine, chromium, molybdenum, selenium and cobalt (the last as a component of vitamin B 12 ).

What are important vitamins?

Vitamins allow your body to grow and develop. They also play important roles in bodily functions such as metabolism, immunity and digestion. There are 13 essential vitamins, including vitamins A, C, D, E, and K and B vitamins such as riboflavin and folate .