Complex carbs such as whole grains are the best source of long-term energy.
Too much protein, especially animal
protein, can cause kidney problems and is linked to a higher rate of cardiovascular disease. As I say, the long-term studies still support the same old same old, which is don't eat overdo the protein, especially animal protein, do eat a lot of colored veggies, eat grains, eat fish, eat beans, but eat in moderation and in balance.