Hi Sandra. I’m going to refer to the above suggestion by the author of: An 1,100 lb horse does well with ¼ cup (2 fluid ounces) to ½ cup (4 fluid ounces) of chia seeds per day, which weighs approximately 2 to 4 ounces (approximately 50 to 100 grams), respectively. For serious health issues, dosing can be increased up to 1 cup (8 fluid ounces or 200 grams) per day, divided between meals. It is best to add water to them and allow them to plump up a bit before being fed, however, they do not need to be soaked and may be fed dry.

However, for an EMS horse, you may want to ask a veterinarian or nutritionist in your area for this specialized scenario. — Sarah