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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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on a diet

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase 'on a diet' is correct and usable in written English.
It is used to refer to a period of time in which someone follows a particular eating plan or regimen with the intention of losing weight and/or improving health. For example: "I'm on a diet to help me reach my goal weight by summer."

✓ Grammatically correct

News & Media

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Better go on a diet.

News & Media

The New York Times

No one is ever on a diet.

News & Media

The New Yorker

I'm on a diet.

News & Media

The New York Times

Waiter: "You're on a diet?

News & Media

The New York Times

He's on a diet.

News & Media

The New York Times

They put him on a diet.

They have her on a diet.

News & Media

The New Yorker

Rumsfeld had been on a diet.

News & Media

The New Yorker

Besides, I'm never on a diet.

News & Media

The New York Times

"This is print on a diet".

News & Media

The New York Times

"I'm going on a diet".

Show more...

Expert writing Tips

Best practice

When discussing specific diets, provide context. For instance, instead of simply saying someone is "on a diet", specify the type of diet, like "on a low-carb diet" or "on a vegan diet".

Common error

Don't assume everyone understands your dietary restrictions. If you say "I'm on a diet", clarify what that means to avoid confusion or unwanted food offerings.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

82%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "on a diet" functions as a prepositional phrase, typically modifying a verb or noun to indicate a state of following a particular eating regimen. As Ludwig AI confirms, the phrase is grammatically sound and commonly used.

Expression frequency: Very common

Frequent in

News & Media

75%

Wiki

15%

Formal & Business

5%

Less common in

Science

2%

Encyclopedias

1%

Academia

2%

Ludwig's WRAP-UP

The phrase "on a diet" is a ubiquitous expression indicating that someone is adhering to a specific eating plan, generally for health or weight-related reasons. Ludwig AI confirms its grammatical correctness and widespread use. Its function is to communicate one's current dietary practices, often to explain food choices or health goals. While it is broadly understood, clarifying the type of diet can enhance communication. As evidenced by the numerous examples provided by Ludwig, this phrase is frequently encountered in news and media, as well as in more informal contexts such as personal blogs and wikis. Although widely accepted, offering specifics about the dietary approach is always recommended for better understanding.

FAQs

How can I use "on a diet" in a sentence?

You can use "on a diet" to describe a temporary or ongoing eating plan for weight loss or health, such as, "I am "on a diet" to improve my cholesterol levels."

What are some alternatives to saying "on a diet"?

Depending on the context, you could use alternatives such as "dieting", "watching my weight", or "following a weight-loss plan".

Is it grammatically correct to say "I'm on a diet"?

Yes, it is grammatically correct. The phrase "on a diet" is a common and accepted way to express that someone is following a specific eating plan.

What's the difference between "on a diet" and "dieting"?

"On a diet" typically refers to a specific, often temporary, eating plan. "Dieting" is a more general term referring to the practice of regulating one's food intake for health or weight management.

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Source & Trust

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Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: