Those involved in the Korean restaurant industry say kimchi, and fermented foods like it, shouldn't be considered potentially hazardous at all.

WSJ: Restaurants: City Failing on Kimchi

But Ja-Boon Kwak, owner of Kang Suh restaurant in Koreatown and chairwoman of the Committee for the Globalization of Korean Food, said through an email translated from a spokesman that "many" Korean restaurants have received health-code violations for fermented foods.

WSJ: Restaurants: City Failing on Kimchi

Surprisingly, chocolate is also a good delivery system, so chocolate products created specifically to deliver probiotics (instead of just throwing them in for marketing purposes) are a tasty and effective option, as long as they aren't loaded with too much sugar and fat. (Attune is a California company specializing in chocolate probiotic treats.) Fermented foods such as cheese, sauerkraut and kimchi are also a good source of probiotics.

CNN: Can supplements block benefits of probiotics?