Apparently. I had some trouble digesting grains when I was real sick with it (literally could not poop when first ill after the dental work, used an OTC herbal colon cleanse to clear that), brown rice would pass right through and I am big on brown rice so that bothered me a lot. Seems to have cleared up.

It may be that I get some good enzymes from other stuff, yogurt, fresh veggies, I am big on salads too. Many days that's all we eat around here. my daughter has always been the only kid I know who loves salad but she has been eating it since she had teeth unlike lots of bottled food fed kids, something she never experienced. I am also quite active, which helps keep things moving along too. And I drink lots of good clean spring water.(not bottled).

Combination of things I think, I rarely eat processed junk foods. Only bread and things of that nature (pasta) make the processed food list here, I never buy that stuff, they are full of hydrogenated fats and soy.