The thing that struck my husband was that trying to eat during and for a time after treatment was a form of operant conditioning - everytime you eat, it hurts. Even when it doesn't hurt to eat, you still have those months of conditioning in your head when it did hurt.

The other challedge is that if you eat slowly, you get full before you have downed enough calories. My husband's solution to this part of it a protein shake with fruit, oatmeal, whey powder, and milk. He even adds cinnamon when he uses an apple in the shake. He has one for breakfast, and one for lunch at work (without the oatmeal).
Maria