is on a diet
Tom está a dieta.
Tom is on a diet.
My mother is on a diet.
Señor, está a dieta, pero no entiendo porque no baja de peso.
Sir, you are on a diet, but I don't understand why you aren't losing weight.
— Dangal (2016)
Ella está a dieta para adelgazar.
She is on a diet to lose weight.
Entre tú y yo, el gordo feo está a dieta.
Between you and me, the ugly fat guy is on a diet.
She's on a diet.
Que quede entre tú y yo, esa bruja gorda y fea está a dieta.
Let's keep this between you and me, that fat, ugly witch is on a diet.
She's on a diet.
He is on a diet.
The moon is on a diet.