Grey hair is often associated with aging, and it's something most of us will experience as we grow older. While there's no way to completely avoid it, gray hair does tend to be more noticeable on individuals with darker hair. However, if you feel like you're graying a bit too soon, your diet might be a contributing factor. Fortunately, you don’t have to just sit back and watch your hair turn silver. If you’re concerned about premature graying and are looking for ways to address it, there’s an option to consider before reaching for the hair dye. It begins with one simple step: talking to your doctor and asking him just one question.