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.
Re: Black stove pipe longivity. How long does your black stove pipe last? How many seasons? I am lucky to get two seasons out of the *off the shelf stove pipe fittings* sold at the big box stores. But I do believe the pipe takes more abuse over the summer sitting on the cellar floor disconnected than it does in the winter while in use.