Docs: Mediterranean diet works better for rich

Some Italian doctors say the Mediterranean diet has a hitch. It appears to work better for the rich than for the poor.

In a study of 18,000 people, only the wealthy and more educated saw a lower risk of heart disease on the diet.

Study leaders believe wealthier volunteers could buy higher-quality foods than low-income participants.

The diet calls for fresh produce, nuts, fish and poultry.

You can off-set some of the costs by shopping at local farmer's markets.

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