Below is a list of ingredients used by the horse feed industry. We recommend eliminating as many of these ingredients as possible in your horse’s feed. You can do some research yourself to decide whether you want to feed them or not. We have provided a link to assist you in that determination. We will continue to add information to this list in the future.
Ammonium Hydroxide - preservative that increases Ph of product
Artificial Coloring and Flavor Enhancers - adds to visible appeal and palatability
BHT - Butylated Hydroxtoluene - preservative to prevent oils from oxidizing/rancid
BHA - Butylated Hydroxanisole - preservative to stop oils from becoming rancid
Calcium Propionate - mold inhibitor for acidic Ph feed
Calcium and Magnesium Stearate - emulsifier, binder, thickener (not a Calcium or Magnesium supplement)
Hydrogenated Vegetable Oil - a stabilized fat that increases shelf life, adds texture
Lignin Sulfate - binder in pelleted feed, byproduct of wood processing
Nitrates/Nitrites - preservatives to increase shelf life and color
Propyl Gallate - preservative for fats to prevent oxidation and rancidity
Propylene Glycol - moisture retention
Propionic Acid - preservative to increase shelf life
Sodium Benzoate - preservative for foods with high acidic Ph
https://horsemoms.com/wp-content/uploads/Horse-Supplements-12-dangerous-ingredients-detailed.pdf