Can probiotics be taken by someone who is lactose intolerant?

Yes: Lactose intolerance means you don't have the enzymes to breakdown lactose- this means your intestinal bacteria will do it for you, resulting in gas, bloating and diarrhea. There is no contra-indication to consuming probiotics...just don't think it will actually allow you to consume lactose containing products. You will end up with the same symptoms of lactose intolerance.