Do you grow veggies and fruits for the nutrition? That's why I'm doing it (except for the blackberries). If I eat only junk food, I have no energy and I feel terrible. Eating healthy is the only way I can get my energy back. It's also the key to fighting depression. I used to have chronic, severe depression until started eating fresh, raw vegetables and fish oil pills.
I read that old age begins at age 27-35 because that's when your body drastically reduces the amount of enzymes it produces, but you can get those enzymes from fruits and vegetables and especially sprouts.