The melanin is the color pigment in your hair follicles. When our bodies stop producing melanin the hair turns gray.
Gray hair is cause by excess hydrogen peroxide in the hair particles that bleaches the hair.
Glutathione converts hydrogen peroxide into the water in the body. Increasing glutathione can reduce hydrogen peroxide and reverse gray hair.
The human body naturally produces glutathione, but with age the production slows down, if you have gray hair means your body is not producing enough to reduce the excess accumulation of hydrogen peroxide.
Luckily there are dietary sources that can help maintain younger looking hair. The food containing the highest sources are asparagus, beef, fish, poultry, spinach, avocados, asparagus, okra broccoli, kale, collards, cabbage, cauliflower, and watercress. Include several of these ingredients in your daily diet such as raw vegetables to get the maximum level of benefits.