Hair loss is a common phenomenon, hair shedding is a part of hair growth. It is normal to lose 50-100 hair every day, however, if you are losing more than that and are not growing back you are suffering from a hair loss problem. More than 100 reasons are there. hair loss is typically related to family history (heredity), hormonal changes, exposure to radiation, medication, supplements and very stressful events.
Biochemical Studies and Vitamin Deficiencies
Biochemical studies outline the mechanisms through which vitamin deficiencies disrupt healthy hair follicle function, development, and hair protein production.

Common Vitamin Deficiencies in Men:
Vitamin D
Vitamin B6
Vitamin B12
Folic acid
Magnesium
Calcium
Iron
Iodine
Common Vitamin Deficiencies in Women:
Vitamin B12
Iodine
Iron
Vitamin D
Calcium
Especially if you're already stressed about hair loss. The good news is that understanding the problem is the first step to finding a solution.

The 10 Vitamin Deficiencies and Hair Loss
Hair depends on getting adequate amounts of many different vitamins. Deficiencies in the following 10 vitamins are often implicated as triggers for hair loss. The key takeaway is that these vitamins are essential for your hair's health:

Vitamin B-6
Vitamin B-12
Biotin
Vitamin D
Vitamin E
Vitamin B Family
The Vitamin B family, including Vitamins B5 (Pantothenic Acid), B6 (Pyridoxine), B7 (Biotin), and B9 & B12, play a crucial role in maintaining hair health.

Foods Responsible for Maintaining Hair Health
Foods such as mushrooms, fruits, dry fruits, potatoes, oils (especially soybean oil and sunflower oil), nuts (especially peanuts), green vegetables (like spinach and broccoli), and non-veg options like beef, chicken, fish, and seafood enhance hair growth. These foods contribute to hair papilla cell growth.

Trace amounts of iron, whose deficiency is common in India, and Vitamins D and E are also responsible for hair growth.

Hair Loss in Toddlers
Hair loss in children can be caused by several issues, including hair pulling, hormone imbalances, and nutritional deficiencies.

Seeking Professional Advice
If you're experiencing significant hair loss, it's advisable to consult with a healthcare professional or a dermatologist to determine the specific cause and explore potential treatments or management strategies.