Preservatives help food to retain a foods quality in a very specific way.

防腐剂的食物，以帮助保持食品质量的一个很具体的方式。

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Some additives and preservatives are essential to keep foods quality and freshness.

一些添加剂和防腐剂都必须保持食品的品质与鲜度。

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The researchers argued that breakfast helps reduce daily calorie intake and improve the quality of our diet—since breakfast foods are often higher in fiber and nutrients.

研究人员认为，吃早餐有助于减少每天的卡路里摄入，改善我们的饮食质量，因为早餐食品通常含有较多的膳食纤维和营养。

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The focus is on fresh high quality foods, and preferably seasonal foods.

FORBES: CrossFit's Relationship with Reebok Enhances Its Financial and Commercial Credibility

You decided first that no family in this city should be spending a fortune on high-priced, low-quality foods because they have no other options.

WHITEHOUSE: Making Healthy Food Accessible & Affordable

And Whitbread, which owns Premier Inn, Beefeater Grill and Brewers Fayre, says it found horse DNA in two products - burgers supplied by food supplier Paragon Quality Foods and lasagne from Brakes Brothers.

BBC: Horsemeat: Compass and Whitbread find horse DNA in products - BBC News