I've always been a late dinner guy - sometimes I won't eat dinner until midnight - and consequently, I rarely eat before noon. On work days, I usually don't eat lunch until after 2pm, with just a cup of black coffee (or occasionally a handful of raw almonds) as the only thing I have for the first 6 hours I'm awake. I do chew a LOT of sugar-free gum, though; I have a major sweet tooth, and two decades ago in an effort to reduce my candy consumption (and my dentist bills), I started relying heavily on Trident. I've averaged 6 pieces of gum a day for the last 20 years.
I always had a problem gaining weight until I hit 30, but around then my metabolism slowed down and I was able to combine increased protein intake with the gym and get into a medically "normal" BMI range. Last year was the first time I crept into "overweight," and I responded by cutting out soda* and switching to sugar-free beverages and a LOT of air-popped popcorn, along with a big increase in cardio (to go along with my normal ~8k steps a day at work). I lost 15 pounds in 3 months and got back to my target weight. I stopped the extra cardio and allow myself an occasional soda, but I've been able to maintain my weight.
*sidebar: I've never been a huge soda drinker - I despise cola of all kinds - but during the pandemic, I found out that there were something like 60 different current flavors of Mountain Dew, which shocked me. So I started a project to try to collect as many different Mountain Dew cans as I could. I ordered 12-packs of flavors exclusive to out-of-market stores, brought a bunch into work for my coworkers and gave almost as many away, but I still drank quite a few of them. The end result of this project, which I wrapped up last spring after Pepsico changed the logo and discontinued all but 4 flavors as part of a product rebranding, was this (along with 20 pounds of weight gain):
