You skipped breakfast and you're walking into the supermarket without a shopping list. Distracted by several two-legged and four-legged members of your household trying to compete for your attention, you left the list clipped to your refrigerator door.

You're famished. The potato chips look good. The glazed doughnuts look even better. And that chocolate candy bar? To die for.

Bring ‘em on!

No, wait a minute. Let's get real, let's get green and let's get healthy. And let's save some money.

Nutritionist Amy Block Joy,  Cooperative Extension specialist emeritus, teaches a University of California, Davis, freshman class on “Eating...