Grains have their place, as a source of complex carbohydrate calories. They're low on nutrition, but high on calories, and as long as one understands this (usef

Grains have their place, as a source of complex carbohydrate calories. They're low on nutrition, but high on calories, and as long as one understands this (useful) purpose I don't see a problem. Calories are necessary, to a point. Throughout much of history, high energetic content was an advantage. Medieval peasants ate 2-3 times as many calories as we eat today, because they worked them off in the fields. Especially now, it wouldn't be healthy to eat 2000 calories/day in red meat or fish, much less 5-6000. It's not really possible to eat that many calories' worth of blueberries. This is where staple crops come in. Of course, no one who is food-conscious should be eating refined grains such as white bread, because those are essentially pure sugar.