Basics
Check Teeth
Eliminate Worms
Feed Alone so not robbed
Evaluate Stress Factor (travel, sickness, foal, growth, etc.)

Basic Diet--
Complete Pellets-for average horse, up to 2 large coffee cans per day. May be soaked.
Timothy Hay-Free Choice
Alfalfa Hay-Add a flake a day to regular timothy
Salt
Warm Water

Additions to Basic Diet--
Beet Pulp-soaked for 6-12 hours
Soak complete pellets if teeth are bad.
Vigor Plus-see label
Corn oil or wheat germ oil for calories