I do a watered down version of this and have still seen great results. I try to eat only in a 11-12 hour window each days, which for me means only between 8am-7pm. More energy, less food craving, better sleep.
I started this after reading a book The Circadian Code which describes all the science behind this (written by a real scientist). Having a deep understanding of the mechanism was the boost I need to give this a fair try. The book explains why study participants who ate the same food, but in restricted hours, had better results. A broader discussion of circadian rhythms explains why eating during all waking hours negatively impacts sleep and energy levels.
Whatever works for you is awesome and you should absolutely keep doing it.
However, I have to remind others that there is really no scientific authority worth anything on nutrition. The digestive system is still far too complex to understand systematically, and statistical studies have far too many confounding factors to have true predictive power.
We of course understand some elements based either on particularly strong effects (e.g. that a deficit of vitamin C will lead to scurvy), or on very basic physics (your net weight gain is based on calories eaten vs calories consumed), but that's about it.
Even the CICO model only holds as a principle, or in highly intrusive clinical settings - we don't have any practical way to actually measure how many calories are extracted from food, nor how many calories are being consumed by your activity - especially since for anyone not doing professional sports, the bulk of their calorie consumption comes from internal processes as far as we can tell.
For an example of how little we understand of the digestive system, until maybe 10 or so years ago, no one had thought to look at the role of the gut microbiome in nutrition (beyond extreme cases, such as radiation treatments killing it off entirely). We had known for a long time that there is a significant role of some kind, but no one had taken time to quantify it, nor to look at inter-personal differences that may be attributable to it. Even today we have very little information, beyond some hints now that it plays a huge role in nutrient absorption.
For another example, we have little to no idea how diet is controlled by the brain+gut, such as what causes some people to be perfectly content with salad, others to crave meat and fat, and still others to prefer carbs and other sugars (not to mention extremely specific cravings people sometime have that correlate with actual nutrient deficiencies, leading to extremes such as eating dirt for anemia).
Overall, there is no way to follow the science on nutrition today. You have to experiment with your own body, find something that works, and stick to it.
If you work long hours or have other obligations it's fun to see how far you can take it. I've fasted 24h+ a couple times, and often fast 16-20h if I skip breakfast and then work a 10-12h shift that day. I've never done well eating 3 meals a day and have always drifted towards OMAD style eating naturally.
I started this after reading a book The Circadian Code which describes all the science behind this (written by a real scientist). Having a deep understanding of the mechanism was the boost I need to give this a fair try. The book explains why study participants who ate the same food, but in restricted hours, had better results. A broader discussion of circadian rhythms explains why eating during all waking hours negatively impacts sleep and energy levels.