Gregg, I've honestly never heard of intermittent fasting, but I did just read an article about it.
https://www.healthline.com/health/food-nutrition/intermittent-fasting-tips#1
I mean, I'm sure there's a million articles, right? This one talks about a feeding window of 12 hours. I mean, that makes sense. 6am-6pm or something like that. It does say to not skip breakfast.
My understanding was that you should never keep your body guessing. If you train it long term, that makes for sense.
If anything, I like to keep my body guessing all the time. Some days if I start at 5am I won't eat until 12pm and have a IF day. Today, I'm at home and just had bacon and eggs for breakfast at 7:30am. With years of weight loss and training, I've discovered that people try and use things like IF, even some fad types of eating (even though I'm practicing semi keto) as a bit of a clutch or quick fix without knowing the true meaning of why they are unfit and overweight.
One needs to really look at themselves with what they eat and how they train. A fad diet or IF isn't going to magically make people lose weight get in shape and stay that way. But people want to lie to themselves and make excuses. From trying so many different things, it's really as Chad said, calories in and out. How you do that is up to you and things like IF help just so you can compound more calories in one or two sittings. On Saturdays and Sundays, I still don't eat until 5pm. Maybe a coffee in the arvo, but that means I can eat more what I want in a big eating session, have a cheat, some ice cream, a donut, feel full and satisfied without going thousands of calories over.
So, IF isn't some magic trick, it's just a tool to help control how many calories are eaten in a day IMO. Yes, there's research about fasting does things to you blood etc. etc. but I don't really read a lot into that.
Breakfast means 'break fast' also, so technically, if I haven't eaten and my first meal is a 5pm, that's breakfast. Don't be fooled by what the mainstream media tells us about 3 meals a day and all the shit. As Podaar said, you have do what works for you. It takes years to really learn and find what works also from my experience.