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Which of these has the least carbohydrates?
這些（食物）中哪些含碳水化合物最少呢？
This roll of bread? This bowl of rice? Or this can of soda?
這卷面包？這碗米飯？或者這罐蘇打水？
It's a trick question.
這是個(gè)陷阱題。
Although they may differ in fats, vitamins, and other nutritional content,
盡管它們的脂肪、維生素和其他營(yíng)養(yǎng)物質(zhì)的含量不同，
when it comes to carbs, they're pretty much the same.
但碳水化合物的含量幾乎是相同的。
So what exactly does that mean for your diet?
那么這對(duì)于你的飲食意味著什么呢？
First of all, carbohydrate is the nutritional category for sugars and molecules that your body breaks down to make sugars.
首先，碳水化合物是一類可以通過(guò)你的身體被分解生成糖類的物質(zhì)。
Carbohydrates can be simple or complex depending on their structure.
根據(jù)其結(jié)構(gòu)不同，碳水化合物可以很簡(jiǎn)單，也可以很復(fù)雜。
This is a simple sugar, or monosaccharide.
這是一種結(jié)構(gòu)簡(jiǎn)單的糖，或者叫單糖。
Glucose, fructose, and galactose are all simple sugars.
葡萄糖，果糖，半乳糖都是結(jié)構(gòu)簡(jiǎn)單的糖。
Link two of them together, and you've got a disaccharide, lactose, maltose, or sucrose.
把這些糖中的其中兩種連接起來(lái)，你就得到了二糖，乳糖，麥芽糖或者蔗糖。
Complex carbohydrates, on the other hand, have three or more simple sugars strung together.
另一方面，復(fù)合碳水化合物是由兩種或者三種單糖形成的。
Complex carbohydrates with three to ten linked sugars are oligosaccharides.
由3到10個(gè)糖分子連接起來(lái)的復(fù)合碳水化合物，稱為低聚糖。
Those with more than ten are polysaccharides.
由多于10個(gè)糖分子組成的那些稱為多聚糖。
During digestion, your body breaks down those complex carbohydrates into their monosaccharide building blocks,
在消化的過(guò)程中，你的身體把那些復(fù)合碳水化合物分解成它們的單糖單元，
which your cells can use for energy.
你的細(xì)胞可以利用這些單糖來(lái)獲得能量。
So when you eat any carbohydrate-rich food, the sugar level in your blood, normally about a teaspoon, goes up.
因此當(dāng)你吃任何富含碳水化合物的食物時(shí)，你的血糖含量——正常情況下大概一茶匙——就會(huì)上升。
But your digestive tract doesn't respond to all carbohydrates the same.
但是你的消化道并不是對(duì)所有的碳水化合物都有一樣的反應(yīng)。
