How I lost a LOT of weight
I was skinny during my childhood, youth and prime adult years. I worked mostly as a chef although I had a fine arts degree - hard to make a living as an artist. My height was 167 cm (5'5 1/2)
Mid to late 90s, as I hit mid-40s, a serious back injury meant I had to give up cooking in commercial kitchens. That was OK - I took to computers and graphics like a fish to water and worked for architects doing presentations etc. My weight ballooned from sitting down most of the day despite regular excercise.
The exact date escapes me, but around 2010 the Paleo Diet became a fad. Protein, no grains or dairy. Bone broth fer gawdsake.....
Being a lover of history and archaeology I asked myself, 'how authentic is the paleo diet". My conclusion was Not At All. The Paleolithic, or Old Stone Age, covered a period of roughly 3.3m to 12,000 years ago. People had not yet adopted permanent settlements and agriculture, instead living as hunter/gatherers. This can be a tenous, uncertain way of living.
Unlike Paleo Pete, they probably didn't have meat every day. I'd imagine that some days were very lean as far as food supplies went. The gathers would have been able to graze as they gathered but less so for the hunters. In a co-operative small group, I think they would have eaten once a day - after they returned from the day's work, regulated by the sun.
Breakfast wasn't popularised until medieval times. The main meal for peasants and working folk was in the middle of the day. Three meals a day is a modern convention.
Ten years ago, long before the OMAD diet becam a thing, I decided to eat one meal a day in the late afternoon. The morning coffee is a ritual, so gave up sugar for sweeteners. Like the old stone age people, I didn't eat meat every day, but luckily I love vegetables and more importantly, pulses and beans. It's really important to be attuned to your body and what it needs or craves, unless that is fat or sugar.
In a nutshell, at my heaviest I was 100kg and like an apple, which was the shape of my grandparents. Today, I can't even imagine a lifestyle with breakfast, lunch and dinner, although once in a while I'll have a snack earlier in the day.
I relapsed a couple of years ago - ran out of sweeteners and went back to a spoon of sugar in my three coffees a morning. Soon I was eating dessert every night. Sugar is an addiction that makes you 'normalise' sugar consumption. Beware of hidden sugar in the foods you eat.
Processed food and takeaway too. Try to cook from scratch with simple ingredients. In winter, make a 'wet' dish that you can reheat for a couple of days.
I know - TLDR! Sorry, I'll wind up now. The outcome is, over ten years, with a couple of humps I have lost 25kg (55lbs), am still slowly but steadily losing 0.5 or a kg every month and the best thing is, this is manageable. I am so ingrained in the habits that the odd deviation makes no difference to my weight or my psyche. This way of eating isn't for everyone, but it's definitely helped me.
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You're not in the US are you?
People do a lot of things without questioning because of habit and convention. I've also come to believe that sugar and fat are more addictive than nicotine and much more insiduous in certain diets.
I lived in the UK until I was 11. My parents were teens during the war and rationing, but I grew up within the rationing culture (born 1954). I think the 'more is MORE' culture stems from the idea of American exceptionalism. 
Feeding oneself involves a huge interconnected web of earthly dependencies. I've never spoken of my eating habits as "intermittent fasting" because the term doesn't make sense to me. It's admitting that three or more meals a day is the norm.
What I've discovered, with persistence, is that your body adapts very happily to less frequent meals and with patience you will reap the results.
all that weight! And what are pulses?
Also, where does peanut butter and honey fit in, b/c that's my ritual along with coffee.
Ya know, little hard things that need soaking. 
Sis, I once bought a jar of 'American Style' peanut butter. I couldn't believe how sweet it was. Ours is a lot less sweet, more salty.
Following along the lines of bucking tradition in the number of meals I eat, I also question what the 'traditional' breakfast, lunch and dinner meals should be. Who made it a law that bacon and eggs must be for breakfast or sandwiches are limited to lunch?
So, an evening meal may be a couple of hot roast chicken breast sandwiches with greens from the garden. Maybe an omlette with toast.
Asian food is a big thing in Australia, so a stir-fry, with or without rice and/or meat. Sometimes a lasagne, a chilli, or other casserole-type dish. I usually make enough for three days - not fussed about microwaving leftovers.
In summer, bowl of raw salad vegies with a couple of anchovies, some parmesan and avocado and a nice dressing. Eat till it comes out your ears!
There's no hard and fast rule; much depends on what's cheap or in season. I have a vegie garden. Ask me about my 1,001 ways to cook zucchini.
There's also another aspect: seasonality.
People are told that to be healthy they need X number of serves of fruit/veg a day. I'm not arguing with that at all but it's unrealistic to expect people to catalogue and monitor their vitamin intake. I've seen nutrient obsessives online; they're weird.
Instead, when say, peas are cheap and in season, eat them every day. Same with spinach, tomatoes, peppers....
I've been doing this for nearly ten years, which was probably long before it became a *thing. I don't call it a diet, because it's my normal eating pattern. Stick with it, permanently if you can; it will take a few years but eventually it becomes a pattern that you can't break.
I really hate the term 'intermittent fasting'. Going twelve or fourteen hours without feeding your face is nothing like the good old forty days and forty nights in the desert. And the connotation of suffering/fasting, but of course it's only intermittent. Not something that will negatively impact your shallow, self-indulgent life.
(Not YOU, 'them')
Keep it up mate, it becomes really easy and natural.
That is an achievement to share, for sure 