Those who say they are proponents of ID because of science don't really understand science.
ID is not science because it can not be tested and verified with measurable results.
Plus, if we were Intelligently Designed, well, the body was pretty badly designed. Our teeth rot, we age, we're subjected to disease. It seems to me that an Intelligent Designer would work to eliminate flaws from a body and make it as efficient as possible.
And make the world far less hostile to its inhabitants.