Answer from April Reeves with excerpts from Marijke van de Water: I hate to burst your bubble, but neither wheat nor rice bran is a laxative to the horse. I am curious why you need a laxative product? If your horse is having problems with constipation, adding any bran to the equation will have little to no effect. It’s important to understand the cause of your horse’s problem and solve that first.
While both brans have great fibre content, feeding hay will also get you the fibre your horse needs. There is no need to feed bran for fibre. Bran has many more advantages than just fibre.
I will give you a few excerpts from Marijke van de Water’s book, “Healing Horses Their Way” so that you may make an educated decision on which is the right one for your horse.