According to nutritionist Dr. Lisa Young, these foods generally fall into one of two categories: non-starchy fruits or vegetables.

根据营养学家Lisa Young博士所说，这些不会引起发胖的食物一般有两类：非淀粉类的水果和蔬菜。

Young says there are few reasons why you won't gain weight from eating these foods:

为什么这些食物吃了不会发胖？Young解释如下：

They're mostly made up of water.

这些食物绝大部分成分是水。

They're low in calories.

这些食物的卡路里含量低。

They contain fiber¹, which helps make you feel and stay full.

这些食物富含纤维，能让人产生饱腹感。

Although these fruits and vegetables aren't high in protein, they're packed with plenty of vitamins, antioxidants, and other nutrients³ that have numerous benefits for your health.

虽然这些水果和蔬菜所含蛋白质不高，但其中富含充足的维生素、抗氧化物、以及其他营养物质，对你的身体好处多多。

Celery

芹菜

You'll get the most antioxidants out of celery if you eat it when it's fresh.

吃新鲜芹菜可获得大量的抗氧化物。

Almost 95% of celery is water, but that doesn't mean the vegetable doesn't have significant health benefits. Celery contains potassium, folate, fiber, and 30% of your daily requirement of vitamin K. There are only six calories in a single serving.

芹菜的水分含量多达95%，可是这并不表示芹菜就没有重要的营养价值。芹菜含有钾元素、叶酸、纤维、以及日常所需30%的维生素K。而每份芹菜的热量只有6卡路里。

You're best off eating celery when it's fresh, though. The vegetable loses many of its antioxidants within five to seven days of being purchased.

但芹菜最好趁着新鲜吃。如果芹菜贮存时间长达5到7天，里面大部分的抗氧化物就会流失掉。

Kale

羽衣甘蓝

Kale is light in calories — one cup of raw kale only has about 33 calories — but it contains close to three grams of protein and 2.5 grams of fiber per serving.

羽衣甘蓝卡路里不高——一杯（切碎的）生羽衣甘蓝只有大约33卡路里——但每份里面含有近3克蛋白质和2.5克纤维。

It's one of the relatively⁴ few foods that contains an omega-three fatty acid, a nutrient² that most people rely on fish to get. Like other kinds of lettuce⁵, kale is also high in vitamins and folate.

含有Omega-3脂肪酸的食物很少，羽衣甘蓝是其中之一，绝大多数人摄取这种营养物质得靠吃鱼肉。跟其他种类的莴苣一样，羽衣甘蓝也富含维生素和叶酸。