reasons you're hungry

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The veggies in your cupboard?
What makes you hungry: Vegetables are a weight-conscious person's best friend...unless they come from a can or package containing the chemical bisphenol-A (BPA), which some scientists consider an obesogen—a newly categorized class of industrial compounds that may alter metabolic processes and predispose some people to gain weight. The exact mechanism of why BPA may make us fatter is still up for debate, but one theory is that because BPA can be treated by the body as a hormone, it can interfere with natural chemicals (like leptin) that regulate hunger and satiety.

What to do: If fresh vegetables aren't easily available (or aren't easy, period), use the frozen variety in BPA-free packaging.