How long do you need to boil flax seed before feeding it to your horse?

To prepare flaxseed for your horse, you should boil it for about 10-15 minutes to soften the seeds and make them easier to digest. This process also helps eliminate anti-nutritional factors. After boiling, allow the seeds to cool before feeding them to your horse. It's essential to ensure that flaxseed is prepared properly, as raw flaxseed can be harmful to horses.