Translation guide
A diet that restricts carbohydrate intake, often for weight loss or health reasons. In Japanese, this concept is commonly expressed using loanwords or descriptive phrases.
low-carbohydrate diet
Most general and widely understood term.
low-carb diet (casual)
Very common in health/fitness contexts.
Referring to the diet itself in everyday conversation or writing.
The most direct and widely understood term. It combines 'low carbohydrate' (低炭水化物) with 'diet' (ダイエット).
I started a low-carbohydrate diet.
Literally 'sugar-restriction diet'. Very common in health and fitness contexts. '糖質' specifically refers to sugars/carbohydrates.
Loanword from English 'low-carb diet'. Casual and trendy, often used in magazines or social media.
I'm trying a low-carb diet.
Descriptive phrase meaning 'meals with reduced carbohydrates'. Useful when you want to avoid technical terms.
Referring to named diet plans that are low in carbohydrates.
The ketogenic diet, often shortened to 'keto diet'. Well-known among health-conscious people.
On a ketogenic diet, you drastically reduce carbohydrates.
The Atkins diet. Recognizable by name, but less commonly discussed than keto in modern Japan.
Talking about individual food items that are low in carbohydrates.
Common label on food products meaning 'low sugar/carb'. Often seen on packaging.
This bread is low-carb.
Trendy term meaning 'carb-off' or 'sugar-free'. Used in marketing for low-carb products.
I bought low-carb beer.
Simple descriptive phrase: 'low in carbohydrates'. Natural in conversation.
Both mean carbohydrates, but '糖質' (sugar) is more common in diet contexts, while '炭水化物' is the formal nutritional term. '糖質制限' specifically implies restricting sugars/starches.
Directly translating 'low-carbohydrate diet' as '低い炭水化物の食事' is unnatural. Use the established terms above.
They say a low-carb diet is effective.
I try to eat meals low in carbohydrates.
The Atkins diet is a type of low-carbohydrate diet.
I'm looking for meals that are low in carbohydrates.