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Love the foods that love you back

A diet of berries and elk or tofu and sea vegetables might seem utterly foreign—but taste buds can be retrained. "Americans love fat, salt, and sugar because that’s what we’re used to," says David L. Katz, MD, founding director of the Yale Prevention Research Center. "But studies show that if you eat more wholesome foods, you can learn to prefer them."

An easy way to start: Search for stealth sugar, which Dr. Katz says is found in many packaged foods. "Once you get rid of that hidden sugar, you’ll start to prefer less-sweet foods," he notes.

Next: Sit down—and slow down.