1. Correct diet.
2. Exercise—especially brisk walking.
3. Regularity of habit.
4. Possibly the addition of bran, agar, or mineral oils.
5. Sweet disposition. Mean people are always constipated.
Review
1. Give classes of food, with examples of each.
2. What are vitamines? How importance discovered?
3. Where most abundant?
4. What is a balanced diet?