Saliva takes about an hour to neutralise the acid created by a food or drink.

唾液要用一小时的时间才能中和掉由食物和饮料产生的酸性物质。

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In the early 20th century, ulcers were thought to be caused by stress and excess stomach acid, and sufferers were told to rest and eat bland food.

在20世纪早期，人们认为溃疡时是由于压力和过度的胃酸造成，并且病人总被告知要多休息多吃些清淡的食物。

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Food will cause your stomach to produce the acid.

食物会使您的胃产生很多胃酸出来。

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After eating food containing sugars, acid is created in the mouth.

BBC: Dental threat of snacking

What happens is that when someone eats too much, too fast, too late or even the wrong kinds of food, the digestive acid in his stomach rises up in the gullet.

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Five-year-old Daniel Harrison has a fear of consuming food after he suffered from acid reflux as a baby.

BBC: Daniel Harrison