Quote (CMBurns @ Sep 18 2018 06:15pm)
This is one of the few studies I looked into before deciding to give 8/16 a try:
https://translational-medicine.biomedcentral.com/articles/10.1186/s12967-016-1044-0Unfortunately if you look at other studies, their control group wasn't as controlled as I would have liked. For example this study where participants ate whatever they wanted during their 8 hours:
https://www.sciencedaily.com/releases/2018/06/180618113038.htmKinda defeats the purpose of figuring out what the difference is between control groups.
But anyway it doesn't take much digging to find out that there are studies out there claiming benefits of intermittent fasting. I haven't found anything concrete concerning things like 5:2 (5 days of eating, 2 days of not eating) or extended fasts. Primarily articles saying there 5:2 didn't seem to have anymore benefit than simply reducing portions and eating normally. I did find a lot of articles that said extended fasts weren't good. Something that doesn't surprise me since I learned pretty early on when I was studying that when your body is without food for a while, you'll deplete the glycogen in your liver and start consuming your reserves for fuel and it won't just be fat. Your body tries its best not to consume protein (muscle mass) as fuel, but it eventually does. That's a big no-no in my book.
This is just false, mate.
Assuming we've got two identical meal-plans for two (hypothetical) identical males- where both eat, say, 2500 calories (same foods and amounts) at a 300kcal deficit (from a TDEE at 2800); one of which doing so in a 6 hour eating-window - and the other guy eating the meals freely throughout the day - there's NO research suggesting that the guy using intermittent fasting's gonna experience different weight-loss results than the other guy. What you're saying is pure bro-science (about the glycogen being depleted and that you'll start "consuming" your reserves for fuel).
The "source" you provided doesn't prove at all what you're saying. It tries to, but honestly, no way in hell should anyone take the results from that research seriously. Was it a controlled environment? Obviously not. Are you seriously gonna sit about and assume that a group who weren't fasting didn't "cheat" and eat in-between meals? They were scheduled to eat at 8am, 1pm, 8pm. Between lunch and dinner, there was a 7-hour window of non-eating. My research-critic screams "They 100% cheated and snacked during those 7 hours". Hell, even the 5 hours from 8am to 1pm? Of course they snacked during those hours.
In other words, that study's severely flawed. I wouldn't take that study seriously what-so-ever. The only thing they might have proved is what I've been saying all along.. It's easier to NOT snack while on IF. For some reason, I find it a lot easier to chug a glass of milk/snack/whatnot when I don't have a rule telling me "you can't eat during these hours" - I've found myself being way better at constricting myself from "cheating" during the fasting windows of IF.
I'm not saying "Don't do IF" - I'm actually a huge supporter of IF - and advice some of my clients to try it out. But that's primarily with the intent of eliminating snacking. There are other positive health-effects from IF -> augmented weight-loss, however, is not one of them.