You need a diet.

你需要节食。

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Choose foods rich in calcium. If you can't tolerate dairy products or aren't getting adequate calcium in your diet, you may need a daily calcium supplement.

选择高钙食物。如果你不喜欢乳制品或饮食中摄钙量不足，你可以服用补钙保健品。

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You need to do some exercise and keep a good diet.

你需要去做一些运动并且维持良好的饮食。

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To some extent it's personalised, because what you need as a patient in terms of your diet often is very personal.

BBC: NHS hospital food will improve, says Andrew Lansley

To avoid dying in a famine, the brain is wired to pick up on signs that calorie-rich foods are nearby, which helps explain why that piece of cake on the plate in front of you is so irresistible, or why seeing a sign for a doughnut shop draws you in even when you know you need to watch your diet.

CNN: Train your brain to crave healthy foods