Keto with intermittent fasting. Works great.
Same here. Cutting off sugar, minimizing carbs and replacing them with healthy fats helps reduce hunger. I eat until full at lunch and dinner and comfortably fast the rest of the day. I lost 30 lbs quickly and am maintaining myself at a BMI of 22.1. Other benefits I have found include no more acid reflux, no more snoring and I am better rested on fewer hours of sleep, but the biggest is my blood pressure is well down into the normal range without medications.
Admittedly I consider Sundays a feast day and allow myself some treats then. Maybe a donut in the parish hall after church or pancakes at brunch or a beer with dinner or a single scoop of ice cream as dessert. When I do face temptations I simply tell myself to wait until Sunday and I don't feel so deprived.