She starts a new diet three times a day

Yo-yo dieting is a cartoon by artist and illustrator Artmagenta
Joe-Ann is yo-yo dieting per day

Street Survey
Are you planning to start a diet?

JOE-ANN: Oh yes! It is my normal state. To constantly be on a new diet.

Every time I finished a good meal, I start a new diet, and I stick to it until I get hungry next time.