Let's listen to all the "bro scientists" who just repeat what they have heard or believe without any scientific evidence.
IF works because there is science behind it. The number of myths regarding nutrition is astonishing. I have spoken to personal trainers who are also "registered dietitians" who do not know my own credentials and are quick to spout things off that are COMPLETELY FALSE. This string of misinformation continues endlessly. I have read articles online and even in Men's health with ignorant comments like "Registered dietician or even (God forbid), MD so-and-so says eat frequent small meals to keep your metabolic furnace hot." Someone said it and I have heard it before so it must be true right!?
Do you guys really believe humans would have evolved if when we didn't eat every few hours our body would eat up our muscle and ignore our fat stores? Why do we write IF off when tons of studies price it's effectiveness and you'd be hard pressed to find a bunch of people complaining about their simultaneous fat loss and strength gains after switching to IF.
It is not a "diet" it is a lifestyle.
I agree with you, a lot of myths regarding proper nutrition everywhere. IMO it was originated by supplement companies, BB magazines, and endorsements by the Pro's but it keeps getting perpetuated daily by people from all walks of life. The difference between a properly constructed typical 6-7meal/day diet and a properly constructed IF diet will be negligible in the long run, until getting to super low body fat ranges. The thermic effect of food is related to food volume and total energy intake not meal frequency so 6 meals a day won't "burn more calories" than 1, provided they're isocaloric diets.
I'm personally not doing IF now (have tried a few variations in the past) but one huge aspect of IF that often gets overlooked is satiety. Believe it or not, clinical studies have shown correlation between increased hunger levels and increased meal frequency. If you're having trouble sticking to a 6-7 meal/day diet because you feel hungry all the time, an IF diet can help increase satiety and therefor adherence to the diet.
If you want to get technical, any diet is an IF diet since even when eating 6-7 meals/day, you are still fasting intermittently between those meals. You're fast just happens to be for a shorted length of time than say a 8hr eating window in an average IF diet. There are many IF zealots out there as well, proclaiming its the perfect diet/only was to do it etc, and they're just as mistaken. Any approach will work and the efficacy of both a typical BB's diet and an IF diet will be equal (no clinical or statistical significance) and determined by adherence to the factors I listed above and adherence to the diet itself. I argue for convenience and adherence, which type of diet is most convenient for you and which one you can stick to without falling off the tracks!
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