The Mayo Clinic recommends getting 45 to 65 percent of your daily calories from carbohydrates. It emphasizes complex carbohydrates, especially from whole grains and beans, and nutrient-rich fruits, and milk. A lack of carbs can cause severe constipation, gastrointestinal problems, difficulty in concentrating, loss of energy, and if you're like me, a bad mood. Picking the greenest carbohydrates is better for you and the planet.

Here are my picks for nutrient rich, green carbohydrates: