Food for good hair can only be suggested on the basis of two parameters – one is on the basis of deficiency and second on the basis of a particular food having specific healing power.
Deficiencies are identified through blood tests. When it comes to hair, the deficiencies are usually of iron, vitamin or protein. Iron deficiency is mostly seen in women. However blindly supplementing with iron is ineffective, as iron deficiencies are often due to poor absorption of iron, rather than less intake. Protein deficiency is more common in people who are on weight loss programs or those who indulge in heavy exercises.
Apart from deficiencies some foods have certain healing properties which can help in controlling hair loss. These are typically organic food items which contain elements like inositol, choline. They are prescribed in varying combinations depending on the severity of the condition.