The very term “health food” is ironic because it implies that there is also “unhealthy” food.

“保健餐”这种说法本身就是具有一种讽刺意味，因为其言下之意还有一种 “非健康餐”。

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We'd better not eat anything in dirty places though some food is delicious, because eating unhealthy food does harm to our health.

我们最好不要吃任何东西在肮脏的地方虽然有些食物是美味的，因为吃不健康的食物对我们的健康有害。

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The study taps into the two sides of healthy food - adding in health promoting ingredients, and removing unhealthy ingredients, in this case trans fats.

该研究涉及了健康食品的两个方面，加入促进健康的成分，除去不健康的成分（反式脂肪）。

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One of the papers said steps such as a tax on unhealthy food and drinks and traffic light labelling on food would be so beneficial for health that they would save money in the long run.

BBC: Obesity: The story so far

For some families, cheap and easy to prepare food can mean unhealthy choices like pizza - increasing the likelihood of obesity and health problems later in life.

BBC: The children going hungry in America

"It's ironic that people are free to take as many unhealthy condiments in fast food outlets as they like, but statins, which are beneficial to heart health, have to be prescribed, " he said.

BBC: 'Give out statins with junk food'