减肥

Using 减肥 is surprisingly straightforward. It usually functions as a verb, but you don't 'do' it like a hobby. You are 'in the state' of it. The most common structure is 我在减肥, which means 'I am losing weight' or 'I am on a diet.' You don't need to add a direct object. You wouldn't say 我在减肥我的身体 because the 'fat' is already built into the word! If you want to describe a plan, you can say 减肥计划. If you want to talk about the method, you might say 跑步减肥 (losing weight through running). It’s like a status update for your body. Just don't say 我很减肥 unless you want people to think you've turned into a literal diet pill.

Imagine you’re out with friends at a Meituan-ordered feast. Someone offers you a milk tea with extra pearls. You sigh and say, 不了，我在减肥. This is the ultimate shield against peer-pressured calories. Or, think about a social media post. You post a picture of a salad that looks like it was plucked from a garden and caption it: 减肥第一天！ (Day one of losing weight!). In a more professional setting, your boss might mention they are 减肥 to explain why they are only drinking black coffee during a long meeting. Even in gaming, players might joke about their character needing to 减肥 if they are moving too slowly. It’s a phrase that fits into every corner of modern life.

You should reach for 减肥 whenever you are talking about the intentional process of getting thinner. Use it when discussing your new gym membership or your keto meal prep. It’s perfect for casual conversations with friends when they ask why you're not eating the birthday cake. It is also appropriate when talking to a doctor about your health goals. It is the standard, neutral term. You can use it in a job interview if you're discussing 'self-improvement' (though maybe focus on the discipline part). It’s also great for bonding with coworkers over the tragedy of communal office snacks. Basically, if there’s a scale or a calorie involved, this is your word.

Avoid using 减肥 when talking about someone who is naturally thin or has lost weight due to illness. In those cases, 瘦 (thin) is better. Don't use it for pets unless you're being humorous. For animals, we usually use 减重 (reduce weight) or just say they need to eat less. Also, don’t use it to describe an object getting smaller. A phone getting thinner isn’t 减肥, it’s 变薄. If you use it for a car to say it’s light-weight, people will think your car is on a treadmill. It’s strictly for the human struggle of fat versus willpower. Also, avoid using it in very high-level medical papers where 减重 (weight reduction) is preferred for its scientific tone.

One of the biggest traps for English speakers is trying to say 'I am very lose weight.'

Remember, 减肥 is an action or state, not an adjective.

Another mistake is trying to be too specific with the body part.

While 减肥 is general, if you want to target a specific area, you use 瘦 + [body part].

Don't use it as a noun meaning 'a diet' in the sense of 'the food you eat.'

减肥 is the process of losing, not the menu itself.

If 减肥 feels too casual, you might hear 减重. This is the more clinical, 'adult' version often used in fitness apps or by nutritionists. Then there is 健身 (fitness/working out). People often say 我在健身 when they want to sound more positive and focused on muscle rather than just losing fat. If you want to focus on the food part, you use 控制饮食 (controlling diet). It sounds a bit more disciplined and less desperate than 减肥. For a very slangy, modern feel, you might hear 瘦身 (body slimming). This is common in beauty ads and suggests you're shaping your body into a specific aesthetic.

You’ll often see 减肥 paired with other words to create specific meanings. 减肥药 refers to diet pills (be careful with those!). 减肥餐 is a diet meal, usually consisting of way too much boiled broccoli. 减肥达人 is a 'weight loss expert,' often a TikToker who transformed their body and now sells workout plans. You might also hear 口头减肥, which literally means 'verbal weight loss.' This is a hilarious way to describe someone who talks about dieting all day while eating a giant burger. We've all been a 口头减肥 expert at least once in our lives.

Is 减肥 rude to say to others? Yes, telling someone else they need to 减肥 is a great way to lose a friend. Only use it for yourself or if they ask for advice. Can I use it for 'dieting' if I'm not trying to lose weight? Not really; 减肥 specifically implies weight loss. If you're just eating healthy, use 吃得健康. Is it used in professional settings? Absolutely. It's a common topic in office small talk, especially after a big holiday like Chinese New Year when everyone feels a bit 'heavier' than usual.