noun
low-carbohydrate diet; low-carb diet
A diet that restricts carbohydrate intake; commonly used in health and weight-loss contexts.
低炭水化物ダイエットを始めてから、体重が減りました。
Since starting a low-carb diet, I've lost weight.
低炭水化物ダイエットでは、ご飯やパンを控えます。
On a low-carb diet, you cut back on rice and bread.
糖質制限 specifically refers to restricting sugar/carbohydrates, often used interchangeably with 低炭水化物ダイエット but more focused on sugar restriction.
A stricter very-low-carb, high-fat diet; 低炭水化物ダイエット is a broader term that includes less extreme carb reduction.
Compound of 低 (low), 炭水化物 (carbohydrate), and ダイエット (diet), a direct calque from English 'low-carbohydrate diet'.