其他研究者认为发过渡活跃行为的罪魁祸首是食品添加剂，比如人工色素，香料和防腐剂。

Other researchers have charged that food additives - such as artificial colors, flavors and preservatives - are likely triggers for hyperactive behavior.

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亨氏一直致力于用高品质原料生产绝佳美味的食品，绝不添加使用任何人工色素及香料，这也是亨氏在英国家家户户总有一席之地的原因。

It is committed to producing great-tasting food from quality ingredients, without the use of artificial colours and flavours, which is why Heinz has a place in most households across the UK.

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