Study: U.S. Diets Lack Cancer-Fighting Foods

(Reuters) – The United States does not produce or import anywhere near enough fruits and vegetables to provide Americans the right kind of diet to prevent cancer, government researchers said on Wednesday.

And Americans also overestimate how much they exercise, another barrier to fighting two of the biggest known cancer risks, researchers at the National Cancer Institute said.

"If everyone wanted to eat healthily, there would not be enough," Susan Krebs-Smith of the cancer institute told reporters.

Many studies have shown that people who keep a healthy weight, exercise regularly and eat plenty of fresh fruits and vegetables have a lower risk not only of cancer, but heart disease, diabetes and even Alzheimer's.

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