Your case of a middle-aged or older person with a poor lifestyle/eating habit would be the best person for the detox I mentioned earlier. I agree that the natural flushing with fresh fruits and veggies w/ tons of water is a great way to go. However, I used to be kind of a connoisseur of certain supplements and now I've moved on to colon cleansers. I quit taking supplements for the most part because I grew up and decided not to put that crap in my body anymore. I have tried different colon cleansers/detoxifiers, and only one of them showed ANY real results. The others mostly had a laxative effect, and didn't do anything for me. They cost about 40-60 bucks for the ones I tried. The one that worked for me was only about 20 bucks for the warm-up phase, and 20 bucks for the actual 5-day cleanser. You don't even have to get the warm-up one if you're already regular. Anyway, the 5-day cleanser was crazy. It worked awesome, and I can't say enough good about it. It's the only reason why I believe in cleansing. If I hadn't taken this one program, I would be saying that these are scams, wastes of money, and probably unhealthy. Now I plan to take this cleanser twice a year just to maintain. I don't like to plug supplements, but if anyone is wondering what program I'm talking about, just ask.