Eat less, move more, eat lots of fruits and vegetables, go easy on junk foods.

When you have a food safety system that's voluntary and not mandatory, you're in a situation in which everybody wants everybody else to go first. So as a normal course of doing business, food companies cut corners and don't want to take the kind of trouble and the kind of testing and the kind of careful procedures that are required to produce the safe food because they don't have to.

The key dietary messages are stunningly simple: Eat less, move more, eat more fruits and vegetables, and don't eat too much junk food. It's no more complicated than that.

Food safety oversight is largely, but not exclusively, divided between two agencies, the FDA and the USDA. The USDA mostly oversees meat and poultry; the FDA mostly handles everything else, including pet food and animal feed. Although this division of responsibility means that the FDA is responsible for 80% of the food supply, it only gets 20% of the federal budget for this purpose. In contrast, the USDA gets 80% of the budget for 20% of the foods. This uneven distribution is the result of a little history and a lot of politics.

There are loopholes big enough to drive trucks through. And Congress needs to take a look at those laws and make sure that they're much more rigorous.

The general public believes that if a health claim is on the label the government backs that up, ... This sells food products, no question.

You need to identify the steps at which contamination can occur - those are the critical control points. You take steps to make sure that that doesn't happen. And you monitor and evaluate and test to make sure that your system is working properly. And if it's done diligently and done faithfully and monitored carefully, then they're producing safe food. And no astronaut of which I'm aware has ever gotten food poisoning in outer space.