A water-soluble vitamin called biotin, also referred to as vitamin H or vitamin B7, is necessary for the body to process carbs, lipids, and amino acids properly.

Animal-based:

• Egg yolks
• Organ meats (such as liver and kidney)
• Dairy products (cheese, yoghurt)
• Meat (beef and chicken)

Plant-based

• Nuts and seeds (such as almonds, peanuts, and sunflower seeds)
• Legumes (such as beans, lentils, and soybeans)
• Whole grains (such as wheat germ and whole wheat bread)
• Fruits

• Hair loss: Hair loss, hair thinning and colour loss, is one of the most prevalent symptoms.
• Skin rash: A biotin deficit may result in a scaly, red rash around the mouth, nose, and genital region.
• Brittle nails: This condition may also result in nails that are easily broken or split.
• Fatigue: Because of its involvement in metabolism, it can cause fatigue and weakness.

• Poor diet
• Prolonged use of few medicines
• Genetic disorders
• Breastfeeding and pregnancy
• Digestive disorders
• Alcoholism
• Smoking
• Dialysis
• Eating raw egg whites