There are two curious aspects to this clam. First of all, Dannon has to be careful about using the C-word. The FDA classifies constipation as a disease, and any product that claims to treat a disease must carry an FDA-approved health claim. Activia does not. But what's stranger is that probiotics are usually used to treat diarrhea—that's why they are often prescribed to travelers journeying to don't-drink-the-water destinations.

The author has a trouble with her clam...or claim is it?