Most of my patients leave a visit with some sort of diet recommendations, and not just for weight loss. I do believe that the best medicine we have is our diet. Your diet can affect so many different aspects of your health. We think of the obvious things like weight loss, diabetes, cholesterol, or constipation. But your diet also influences your mood, hair/skin/nails, energy, how quickly you recover from cold or flu.
I don't prescribe one diet for everyone. I try to take the best research, my years of observations, and of course, a patient's symptoms into consideration when I make nutrition recommendations.