There are two main kinds of canned tuna: chunk light and solid or chunk white (albacore).
By paying attention, parents can safely include tuna sandwiches in their kids' lunch boxes, in moderation. How much canned tuna is OK?įortunately, parents and kids need not give up tuna altogether. Once it enters the atmosphere, mercury rains down on rivers, lakes and oceans, where it then enters the food web. Mercury comes from both natural sources - like volcanoes - as well as man-made sources like air pollution from power plants and other industrial sources that burn fossil fuels.
