Intermittent Fasting will safely lose you about 1 pound per week. Over 50 pounds in a year.
I did the 5/2 fasting plan. Eat whatever 5 days a week. I fasted on Mondays and Thursdays and lost 40 pounds. I now do OMO. One Meal Only and have kept the weight off for over a year.
Cool thing about IF is there is no calorie counting, no kooky diet plans and no carb restrictions. And there are many different types of fasting. Can’t go 24 hours without eating? No problem. Use the 16/8 method.