and if you are deficient in vitamin B3

The vitamin B3also called niacin or vitamin PP performs the function of glucose breakdown and blood circulation. One of the major manifestations of this micronutrient deficiency is pellagra. This guide details all the principles of this vitamin, as well as recommended dietary norms, as well as various cases of deficiency.

What is Vitamin B3?

The vitamin B3 is still one of the water-soluble vitamins. The niacin is divided into two large, fairly similar groups: nicotinic acid and nicotinamide. The latter also have the same biological activity. Formerly known as vitamin PP, this vitamin has been used to prevent pellagra. In addition, it is mainly found in form niacin in food, but it is also produced by the body. The source is the amino acid tryptophan.

Properties of vitamin PP

The vitamin B3 plays an important role in the liver. It is inserted into the structure of two coenzymes, namely NAD and NADP. They are essential for the proper functioning of many enzymes.

In these forms, the vitamin is partly responsible for the production of energy in the cells. It also guarantees the production of certain lipids and their derivatives. This is especially true of bile salts, which are essential for proper digestion of fats. The same goes for steroid hormones such as corticosteroids or even estrogens and testosterone.

One of properties of vitamin PP is its ability to repair damaged DNA. It also plays an important role in the functioning of the nervous system. Finally, the latter interacts with other B vitamins, namely B1 and B2.

Recommended nutritional values ​​and vitamin food sources

This vitamin is present in large amounts, mainly in food of animal origin. Organic meat, poultry or fatty fish are very interesting sources. Canned tuna oil contains 17 mg / 100 g. Boiled chicken breast 10.6mg / 100g.

In addition, whole grain foods contain twice as much of this trace element as refined foods. Breakfast cereals are especially fortified. Whole-grain bread contains about 2.4 mg / 100 g, and fortified breakfast cereals 9 to 19.5 mg / 100 g. Brewer’s yeast, in turn, can supplement contributions.

Finally, you should know this recommended dietary intake in infants is approximately 3 mg daily niacin. It increases to 12 mg in children aged 10 to 12 years and to 17.4 mg in adults.

How does vitamin B deficiency manifest itself?

A vitamin B deficiency it usually presents with tingling in the hands or feet. Its deficiency is also associated with restless legs syndrome. Loss of appetite, fatigue or even headache and dizziness may occur.

Pellagra occurs only when the deficiency is severe. It is also seen in people with hereditary Hartnup disease.

* Presse Santé aims to communicate health knowledge in a language accessible to all. Under no circumstances should the information provided replace the advice of a healthcare professional.

Like our content?

Receive the latest releases every day for free and straight to your inbox

Leave a Comment