When you have symptoms (belly pain, diarrhea, a lot of gas), choose foods that are easy on your gut. The trick to managing the disease is to choose foods from the left hand column when you have a flare up or an upset in the functioning of your gut. These foods are low in fiber, fats and are easier on you.
Copper pipes corrode as well, but (theoretically) over a longer period than the galvanized types. Generally a copper pipe can last 50-70 years under good conditions. PH levels in the water and grounding both affect the pipes and speed up corrosion extensively.
Supply pipes are under constant pressure, meaning they wear faster than drain lines, relatively speaking. They still last a pretty long time. Brass supply pipes can last between 40 to 70+ years. Copper pipes can last in excess of 50 years, and galvanized steel pipes can last between 20 and 50 years. Cast iron drain lines have a lifespan of 75 to 100 years, and PVC drain lines will last indefinitely.