Verified answer

sounds like it. it can also cause it to come out the other end. try alternatives like lactose-free milk, or soy/rice/almond milk if you like those. try having aged cheeses in total moderation (not more than one small slice at a time). stay away from yogurt, cottage cheese, pizza (unless you can find alternate cheeses), and ice cream (sometimes a small scoop of one of the cheeper brands is okay because it's not as creamy). usually really processed cheese like cheez whiz and cheese slices are okay in moderation. make sure you take calcium supplements and multivitamins. mostly you have to experiment with what works for you. you can also buy pills at the pharmacy that let you have lactose, but those can get expensive.