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：
o They're mostly made up of water.
o 这些食物绝大部分成分是水。
o They're low in calories.
o 这些食物的卡路里含量低。
o They contain fiber, which helps make you feel and stay full.
o 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 nutrients that have numerous benefits for your health.
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.
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.
It's one of the relatively few foods that contains an omega-three fatty acid, a nutrient that most people rely on fish to get. Like other kinds of lettuce, kale is also high in vitamins and folate.
Blueberries' claim to fame is their antioxidant content. The fruit has more antioxidants than any other fruit. And for all the fiber a cup of blueberries packs — 14% of your recommended daily value — it only has around 85 calories.
Most of a cucumber's nutritional value is in its skin and seeds.
黄瓜的营养价值绝大多数是在表皮和种子里。
A fruit that is mostly made up of water, cucumbers only contain 16 calories per serving. The seeds and skin contain most of the fruit's nutritional value, so you're best off not peeling your cucumbers.
The peel and seeds provide both fiber and a form of vitamin A known as beta-carotene, which is known to be good for your eyes.
黄瓜皮和种子既有纤维，也有可转化成维生素A的β-胡萝卜素，维生素A对眼睛好。
Tomatoes
西红柿
Tomatoes are best known for the fact that they contain lycopene, a carotenoid, which helps fight against chronic diseases and also gives the fruit its red color. Besides lycopene, tomatoes are high in vitamins A, C, and B2, as well as folate, chromium, potassium, and fiber.
And for all the nutrients it boasts, one medium-sized tomato only has around 25 calories.
除了富含营养，一颗中等大小的西红柿大约只有25卡路里。
Grapefruits
葡萄柚
Grapefruit has long been known as a fruit that can help with weight loss.
葡萄柚长期以来都是减肥的灵丹妙药。
Studies have shown that adding grapefruit to your diet can increase weight loss, which is often why it's considered a diet food. This is because grapefruits are high in fiber, which keeps hunger at bay by stabilizing blood sugar levels and helping you feel fuller for longer. There are only 50 calories in one half of a grapefruit.
The vitamin C found in grapefruit can reduce the risk of a number of health problems, like cancer and heart issues. Grapefruit can also work wonders in lowering cholesterol and improving digestion, and the folate found in the fruit makes it an ideal snack for pregnant women.
Broccoli is most nutritious when eaten raw or when steamed. This super vegetable contains sulforaphane, an anticarcinogen that works to destroy cancer-causing chemicals that the body might take in either through the environment or through food.
Besides vitamins A, C, E, and K, one serving of steamed broccoli contains approximately 20% of your daily fiber requirement. Plus, there are only about 31 calories in one serving.
Cantaloupe has more beta carotene — a form of vitamin A that promotes healthy eyes — than many other similar fruits like oranges, grapefruits, peaches, and mangoes. Just one cup of the fruit provides you with potassium as well as more than 100% of your daily recommended value of vitamins A and C.
Plus, since water makes up 90% of cantaloupe, there are only 55 calories in one serving.
此外，由于哈密瓜中水分多达90%，一份哈密瓜的热量仅为55卡路里。
Cauliflower
花菜
Although its white color may make people think otherwise, cauliflower is actually a very versatile and nutritious vegetable. It contains antioxidants and phytochemicals — both of which help to fight off chronic disease — and it's an excellent source of folate, fiber, and vitamins C and K.
Blackberries' health benefits are incredibly versatile. Like many other berries, the fruit is rich in vitamin C as well as antioxidants known as bioflavonoids.
黑莓有多种健康益处。如同其他的莓类，黑莓富含维生素C以及抗氧化剂，如生物类黄酮。
Beyond that, eating blackberries can aid with digestion and staying alert, and tightens tissue, leading to younger-looking skin. There are around 62 calories in a single serving of the berries.
Most types of lettuce — whether it's romaine or iceberg — only have about 10 to 20 calories per serving. And although lettuce won't add a lot of protein to your diet, it will add plenty of vitamins and nutrients like folate, iron, and vitamins A and C.
Most people know oranges for their vitamin C content, but the citrus fruit touts multiple other benefits. Since vitamin C is crucial in collagen production, oranges help keep skin free of damage and looking good. It's also low in calories; a medium-sized orange has about 80 calories.
And if you're not eating that white stuff under an orange's skin — pith — you should start. Pith contains a lot of fiber, which helps lower cholesterol and blood sugar levels.
There's more vitamin C in one serving of strawberries than there is in one orange. In addition, strawberries are also bursting with polyphenols, a type of antioxidant.
每份草莓的维生素C含量比每份橙子的要多。此外，草莓还含有具有抗氧化作用的多酚。
Strawberries are also a good source of potassium and fiber, and they're fat-free, sodium-free, and cholesterol-free, which makes them healthy for the heart. One cup of the fruit only has around 50 calories.
草莓含有钾元素和纤维，不含脂肪、钠、胆固醇，对心脏有好处。一杯草莓的热量只有50卡路里。
Honeydew melon
甜瓜
Honeydew melon has only slightly more calories per serving than cantaloupe (64), and the majority of these calories come from the 14 grams of natural sugar the fruit provides.
