Nancy,
My mom did the same thing not eating and she never had a peg tube. This recipe was a lifesaver for her...

2 cups ice cream
1 cup whole milk
1/2 cup half-and-half
1 package instant breakfast
1 tablespoon malted milk
2 tablespoons Ovaltine

Blend well.

This shake provides 1300 calories per serving.

My mom's body began eating her muscles to survive and she got very week and took longer than most to recover. Do whatever it takes to get him properly nourished because it makes a huge difference.

Take Care,
Dani