Vitamin B7 – Biotin

By: Taylor

What is Vitamin B7?

Also, known by the name of vitamin H, co-enzyme R, Biotin, W factor; vitamin B7 is a water soluble vitamin belonging to the category of the 8 group of vitamins. This natural nutritional supplement plays a crucial role in the metabolism of fats, carbohydrates, proteins and several enzymes.

Functions of Vitamin B7

Vitamin B7 plays a vital role in a number of bodily functions.

It helps in the growth, maintenance and reproduction of cells and tissues in the body.
It helps in the proper functioning of the liver and kidney.
It is known to be effective in the treatment of hair loss or alopecia. In other words, it helps in the maintenance of healthy hair.
Helps in the maintenance of normal cholesterol and sugar levels. It plays an important role in preventing neuropathy associated with diabetes.
It acts as an important element in the daily skin care regime and helps in the maintenance of healthy nails.
It is necessary for bone growth and bone marrow.
It helps in the maintenance of a healthy nervous system.
It helps in the maintenance and proper functioning of the neuro-muscular system.
It is essential for the production of fatty acids and amino acids in the body.
It helps the body produce glucose.
It ensures the proper functioning of the heart.
Sources of Vitamin B7

Vitamin B7 is found in a wide variety of food sources.

Animal products:

Beef liver, chicken, milk, cheese, egg yolk, salmon, sardines, tuna, pork etc

Vegetable and fruits:

Spinach, cauliflower, cabbage, leafy green vegetables, potatoes, avocado, watermelon, broccoli, bananas, raspberries, grapefruit etc.


yeast, peanuts, whole wheat bread, barley, fortified cereals, corn, soy, wheat bran, mushrooms, split peas, unpolished brown rice, almonds, walnut etc.

Deficiency of Vitamin B7

Deficiency of vitamin B7 is rare because the daily requirements are relatively less and it is found abundantly in most of the foods we eat. However, in exceptional cases it may result in;

Muscle strain/pains
Hair loss and brittle nails
Loss of appetite
Abnormal heart function
Glossitis; a condition of inflamed tongue
Intestinal tract issues
Neurological symptoms like lethargy, numbness, tingling sensation, hallucination.
Increased susceptibility to infections and viruses
Recommended Dietary Allowance of Vitamin B7

Age Group Adequate Intake mcg/day
Infants0-6 months7-12 months 5 mcg6 mcg
Children 1-3 years4-8 years 8 mcg12 mcg
Males9-13 years14 -18 years
19 years and older

20 mcg25 mcg
30 mcg

Females9-13 years14-18 years
19 years and older

20 mcg25 mcg
30 mcg

Pregnant Females 30 mcg
Breast-Feeding Females 35 mcg
Tips and Warnings:

There are no known toxic effects or adverse effects from high doses of biotin or vitamin B7.
Intake of anti-seizure medications, all-purpose oral antibiotics can disrupt the formation of biotin in the body.
Accutane is known to reduce the normal functioning of biotinidase.
High doses of pantothenic acid are also known to lower the level of biotin.

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