your son’s weight loss protocol and IF schedule

Hi Brooke,
Would you mind sharing what your son did for his success? I know that everyone is different and we need to try our own protocol and eating schedule, but I would like to present a little more info to my 17 year old daughter, who eats very healthfully but may have an insulin regulation problem herself. She’s interested in losing about 15 lbs and I can’t really see where to cut back. Thank you for all you do!