The concept that whole grains are essential for a healthy diet is relatively new . The truth is, whole grains are mostly carbohydrates and, as such, have a similar impact on your body as plain old sugar. Grains are also energy dense but typically lack fats and protein. While whole and ancient grains do provide important nutrient, many also contain dangerous pesticides . Truth is that any balanced diet, rich in micronutrients, healthy fats, quality proteins, as well as fiber will lead to good health . Where you get these nutrients from doesn't really matter.