Food choice makes all the difference to Satiety. I can be completely satisfied with 1000 calories of meat, seafood, veggies and yogurt. While on 1200 calories of WW foods, starve and then give up after 2 weeks.
And no surprise if I eat 200 fewer calories each day, I will slowly, lose down to a healthy goal weight …and miracles..stay there..

Both of these plans can work, on their own, or even better, together …if you focus on Nutrition.