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7 Food/Drinks That Cause Yellow Teeth
1.Red or white wine
酒类
Not just red wine as you would expect, but also white wine is not ideal for keeping those teeth white. The reason is that they both contain tannins, which are really yellow and brown polyphenols and can leave a dirty footprint on your teeth.
不是只有你想象中的红酒才会让牙齿变黄，白葡萄酒也不会让牙齿洁白。就是因为这两种酒类里面都含有单宁酸，单宁酸里含有黄色和棕色的多酚类物质，都能在牙齿上留下污渍。
2.Coffee
咖啡
You cannot get a darker liquid than this, so the effect on your white teeth is less than great. One solution is to use more milk in it if that does not spoil the taste.
你不能找到比咖啡的颜色更深的饮料了，它对白牙齿的影响也是毋庸置疑的。唯一的一个解决办法就是在里面加更多的牛奶，当然前提是牛奶得不影响其口味。
3.Teas
茶类
Strong black teas may be just as stimulating as a cup of coffee but they also have the same disastrous effect on the color of your teeth. Experts say that opting for herbal and lighter-colored teas may help.
可能红茶对人体的刺激和咖啡的一样，但是红茶也和咖啡一样会严重影响牙齿的洁白。有专家表示花草茶和颜色明亮一点的茶可能会好一点。
4.Balsamic vinegar
香醋
Dark,sumptuous and great for staining teeth. The good news is that if you use it on salads or spinach, these tend to lessen the drastic effects.
对于染黑牙齿、腐蚀牙齿是很厉害的。好一点的情况就是如果将其加入沙拉里，情况会好一点。
5.Curry
咖喱
Wonderful taste! But the colors of curry will leave your teeth a bolder shade of yellow if you indulge in these exotic spices all the time.
味道很不错。但是如果你一直都喜欢这种有特色的东西，咖喱的颜色会在牙齿上留下一大块痕迹。
6.Tomato sauce
番茄酱
Who can resist tomatoes in pasta sauces and other dishes? Well, if you cannot, your teeth may begin to appear darker. It is not just the color of tomatoes but also the fact that they are highly acidic.
谁又能抗拒意大利面里面酱里面的番茄酱或者其他一些有番茄的食物呢?如果你不能，你的牙齿可能就会开始变黑。这不是番茄的颜色，而事实是里面含有大量的酸性物质。
7.Berries
浆果类
Raspberries, blackberries, and blueberries are full of healthy vitamins. The only problem is that they are highly colored and will leave their mark as they tend to stick to your tooth enamel.
树莓、黑莓、蓝莓里面都含有大量的有益健康地维生素。唯一的问题就是它们里面都含有很深的颜色，这会在我们的牙齿上留下颜色。
来源：大耳朵英语
