This isn't a new thing for Xmas but I've had good success just focusing on hitting the 1 gram of protein per pound of ideal weight. This means the calories you reduce have to come from carbs and fat. Whichever one you choose to cut more is personal preference. You don't want lower protein because that's where your satiety and muscle mass are going to come from. On paper vegetables should be good but in practise I get hungry like 15 mins after eating a bowl of vegetables. My stomach isn't fooled at all "The fuck is this? This isn't food, mate." For satiety protein works better for me. I do eat some fruit like strawberries and blueberries, they're great. I wouldn't eat very sweet fruit like mangoes, pineapples, grapes, etc, because that's leaning a little too much into carbs. If you find yourself getting gassed out at the gym you can choose to eat more carbs, but that means you get to eat less fat. I'd rather be able to eat more fat, for example being able to eat fattier cuts of beef. If you had very low fat allowed in your macros, I guess you'd be looking at stuff like chicken breast, which is a little depressing.