Nutritionists worry about the resulting loss of quality, but there are big gains in quantity.

营养学家们担心这会引起食物营养物质的流失，但是在数量上有很大的收益。

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A latest US study finds eating an apple before lunch can speed weight loss. Apples can prevent getting fat and reduce 180 calories quantity of heat each meal.

美国最新研究表明，午餐前吃苹果可以使每顿摄入热量减少180卡，从而有效防止发胖。

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During the process of oil storage and transport, not only made the quantity loss, but also made the quality decreasing.

油品在储存和转运过程中，不仅造成数量的损失，还会导致油品质量的下降。

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This posed the question: What matters more for weight loss, the quantity or quality of calories?

CNN: Twinkie diet helps nutrition professor lose 27 pounds