Would it be harmful if someone were to take both Flax seed oil and colon cleans?

I take flax seed for the omega 3 fatty acids that I need to have in my diet but I never actually eat fish. I also take Colon Clenz to keep my intestines clean and not backed up. I know that sounds gross but I’m afraid to take both of them in a day cause of the cleaning factor they both serve. What do you think?