noun
diet
B1
Diät means diet, especially a nutritional regimen or weight-loss program. Noun: die Diät (feminine). Plural formed with Umlaut and -en: die Diäten. Declines regularly but plural irregularity (ä + -en) is notable. Common in medical or nutritional contexts; no special preposition required.
Examples
Sie macht eine strenge Diät, um Gewicht zu verlieren.
She is on a strict diet to lose weight.
Sie macht eine Diät, um Gewicht zu verlieren.
She's on a diet to lose weight.
Die Ärztin verschrieb eine Diät, weil die Patientin gesundheitliche Probleme hatte.
The doctor prescribed a diet because the patient had health problems.
Details
Mnemonics
Picture a small plate with a measured portion to represent a diet plan.
Sounds like English 'diet'.
die Diät — imagine a woman ('die') following a diet plan.
Notes
Diät (with Umlaut) refers to a regulated eating plan; plural is Diäten. In medical contexts it can also mean a therapeutic diet.