Vitamin B3, also known as niacin, is
a water-soluble B vitamin that play a role in at least fifty different
metabolic functions, which are all critical in the conversion of
carbohydrates into energy.
Niacin is necessary for the metabolization
of carbs, fat, and protein for the body to use for energy, as well
as for the maintainence of tissue and cell integrity and health.
Vitamin B3 is a required component for the production of hydrochloric
acid in the stomach, which is needed for proper digestive function.
It also has plays roles in antioxidant and detoxification processes,
and in the creation of hormones. A deficiency of vitamin B3 can
result in a condition known as pellagra. Pellagra is usually seen
in those who abuse alcohol, people who are malnurished, and in those
suffering from multiple nutritional deficiencies. Read more about
and functions of vitamin B3 and signs of vitamin
Vitamin B3 is readily available in foods form
both animal and vegetable sources. Niacin can be obtained from milk,
lean meat (such as poultry and pork), fish, nuts, eggs, and enriched
grain products like bread and cereal. Vegetables including broccoli,
carrots, and tomatoes also contain vitamin B3. Read more about sources
of vitamin B3 and the daily
requirement of vitamin B3.
Excessive amounts of vitamin B3 can result
in liver damage, peptic ulcers, and skin rashes. In the case of
large dosages which are utilized to control cholesterol levels (dosages
more than 100mg/day), nicotinic acid can result in flushed and itchy
skin, headaches, and low blood pressure. Read more about vitamin
Vitamin B3 is a water-soluble nutrient that
is a member of the B vitamin group. It is available in two general
forms - niacin (also known as nicotinic acid) and niacinamide (also
known as nicotinamide). Another type of niacin, known as inositol
hexaniacinate, can also be found in certain supplements. The two
basic types of vitamin B3 have the same nutrient functions, but
are used differently for pharmacological uses. Nicotinic acid is
utilized as an anti-hyperlipidemic agent and nicotinamide is thought
to act as an anti-diabetogenic.
Niacin acts in conjunction with other B vitamins
(B1, B2, B6, pantothenic acid, and biotin) in the conversion of
macronutrients (carbohydrates, fat, and protein) into energy.
The body can produce niacin by converting it
from tryptophan, an amino acid.amino acid. However, this process
is quite inefficent - it takes 60 milligrams of tryptophan to produce
just one milligram of niacin. This is known as "niacin equivalency."
Because of the large amount of tryptophan needed to create a small
amount of niacin, consuming large quantities of tryptophan isn't
a viable substitute for consuming niacin. .
The liver is the primary location where vitamin
B3 is stored in the body and absorption of occurs in the intestines.
Niacin has a very high absorption rate through digestion and dosages
up to 4 grams can be almost completely absorbed.