I started to have grey hair since childhood

Condition analysis:
Premature hair graying is primarily caused by a reduction of melanocytes in the bulbs of the hair follicles. Melanocytes are pigments that give your hair colour, similar to how melanin is responsible for the colour of your skin. Over-production of melanin makes skin darker. Less melanin equals fairer skin. In the case of premature hair graying, melanocytes play the same role as melanin.

Instructions:
Almonds
Almonds are not just good for skin, but also for hair. They are rich in both Vitamin E and copper. In order to get rid of grey hair and have a healthy, flowing hair add almonds into your diet and see the difference.

Gooseberry
Gooseberries, better known as amla is the best remedy for premature greying. Gooseberries are known to be beneficial in the prevention and treatment of grey hair. This is a valuable hair tonic for enriching hair growth and hair pigmentation.

Curry Leaves
Curry leaves are very common in India. These curry leaves are beneficial in preventing premature greying of hair. Curry leaves have the property of providing strength to hair roots. Apart from adding curry leaves to the diet, these leaves can also be boiled in coconut oil. This is a popular home remedy, an excellent hair tonic to stimulate hair growth and increase hair pigmentation.

Sunflower Seeds
Sunflower seeds have high amount of mineral content which plays an important role in the functioning of a healthy body. These minerals are also said to help in producing and retaining the melanin content. If mineral content or even the copper content is reduced, it can make your hair grey.