What is Biotin

Biotin Overview

Biotin (also known as vitamin H or vitamin B7) is a water-soluble vitamin that belongs to the B vitamin family. It plays important roles in the body, especially in metabolism, energy production, and the health of the skin, hair, and nails.

The main function of biotin

• Energy metabolism: Biotin is a coenzyme of many enzymes, participating in the metabolism of carbohydrates, fats and proteins, and helping to convert nutrients in food into energy. It plays a key role in the processes of carbohydrate metabolism, fatty acid synthesis, and amino acid metabolism.
• Skin Health: Biotin helps maintain healthy skin. A deficiency may lead to problems such as dry skin, flaking, and eczema.
• Hair and Nail Health: Biotin is widely used to improve the health of hair and nails. It is believed to help reduce hair loss and strengthen nails. Many people use biotin supplements to promote hair growth.
• Nervous System Health: Biotin is essential for the function of the nervous system and supports its normal functioning. It helps promote the synthesis of neurotransmitters and maintain the health of brain cells.
• Supports Fetal Development: Biotin also plays a role in the normal development of the fetus during pregnancy, especially in the growth of the embryo and the development of the nervous system.

Sources of Biotin

Biotin is found in many foods, especially the following:

• Animal liver: such as pork liver, beef liver, etc.
• Egg yolk: Egg yolks are an excellent source of biotin.
• Nuts and seeds: such as almonds, walnuts, melon seeds, etc.
• Whole grains: such as oats, brown rice, etc.
• Fish: such as salmon, tuna, etc.
• Dairy products: such as milk, yogurt, etc.
• Vegetables and fruits: such as carrots, sweet potatoes, spinach, strawberries, etc.

Recommended intake of biotin

The recommended intake of biotin varies depending on age, gender, lifestyle, and other factors. The following is the recommended intake from the National Institutes of Health (NIH):

• Infants: 5 mcg for 0-6 months, 6 mcg for 7-12 months
• Children: 1-3 years old 8 mcg, 4-8 years old 12 mcg, 9-13 years old 20 mcg
• Adults: 14 years and older 30 mcg
• Pregnant women: 30 mcg
• Breastfeeding women: 35 mcg

Biotin Deficiency

Biotin deficiency is relatively uncommon because it is widely present in food and can be synthesized by intestinal bacteria. Symptoms of deficiency may include:

• Hair loss or thinning hair
• Dry skin, redness, or eczema
• Fatigue, weakness
• Loss of appetite, nausea
• Depression, mood swings
• Conjunctivitis or conjunctival hyperemia
• Nervous system problems, such as numbness, tingling, or loss of motor coordination

Overdose of Biotin

Biotin overdose is usually rare because it is water-soluble and the excess is excreted in the urine. However, if taken in excess, it may interfere with laboratory test results and affect some blood tests (such as thyroid function tests), so care should be taken when supplementing with biotin.

Biotin is a vitamin that is essential for maintaining good health in general, but plays a role in the health of your skin, hair, and nails. While adequate intake of biotin can help maintain overall health, deficiency is rare in the general population.

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