Vitamin B7, better known as biotin , is a water-soluble B vitamin that plays a key role in cellular metabolism , hair, skin, and nail health , and sugar and fat metabolism .

One of the best-known effects of biotin (vitamin B7) is that it supports hair growth and can reduce hair loss, especially when it is caused by a biotin deficiency or thyroid problem.

Why is it important for the thyroid?

• Helps metabolism: biotin is essential for the breakdown and utilization of macronutrients (carbohydrates, fats, proteins) – this is especially important because metabolism slows down in cases of hypothyroidism.

• Supports hair and skin condition: common symptoms of thyroid diseases include hair loss, brittle nails, and dry skin – biotin provides targeted help for these problems.

• Supporting energy production: biotin helps energy-producing enzymes function, so it may help relieve chronic fatigue typical of hypothyroidism.

Deficiency symptoms may include:

• Hair loss, thinning hair

• Brittle nails, dry skin

• Fatigue, irritability

• Muscle pain, mild depressive symptoms

Natural sources: egg yolks, salmon, sunflower seeds, avocados, whole grains, nuts