She follows a strict diet to stay healthy.

A specific selection of food and drink that a person regularly consumes.
He changed his diet to lose weight.
A balanced diet is important for good health.
Many people try different diets for various reasons.
healthy diet
balanced diet
strict diet
nutrition
regimen
meal plan
She follows a strict diet to stay healthy.

A regulated selection of food and drink that is consumed for health reasons.
He changed his diet to lose weight.
A balanced diet is important for good health.
Many people try different diets to improve their well-being.
healthy diet
balanced diet
low-carb diet
nutrition plan
meal plan
eating regimen
She follows a healthy diet.

The kinds of food a person usually eats.
He has a vegetarian diet.
My diet includes lots of fruits.
They changed their diet to lose weight.
balanced diet
healthy diet
strict diet
nutrition
regimen
meal plan