10 Intermittent Fasting Myths (That You've Definitely Heard Before) ~ BUSTED

Updated: May 27, 2020

Affiliate Disclosure


Today I was inspired to write this article because of the overwhelming amount of bad information I have seen as of late in regards to Intermittent Fasting. Some of it is a little funny, others are simply dangerous. (But that can be said for most of the "health" information on the internet).

My mission with Autumn Elle Nutrition is to not just TELL you that something is "good" or "bad" for you. I mean, ultimately this doesn't help you at all. If you don't know WHY you're doing something, then you won't stick with it for very long. I want to help you make lasting changes that also make you feel awesome.

So today, I'm sharing the top 10 Intermittent Fasting myths I've seen on social media and various articles and explaining exactly why these don't make sense.

Gear up for some nutrition nerd rants 🤓


intermittent fasting guide autumn elle nutrition review before and after
Wait... you can workout in a fasted state?! See myth #10 for the deets.

#1 Women shouldn't use Intermittent Fasting

I can definitely type out why this is false... but I'll let you watch me rant on this in-person instead ;) See the vid below!




#2 You can eat whatever you want, as long as it's within your window

THIS myth is particularly AWFUL for your health, wellness and goals. By eating whatever you want during your eating window, this can really confuse your body. You're going from a state of balanced blood glucose levels and fat burning during your fasting period to, all of the sudden, a spike in blood glucose and a rush of insulin. You're basically undoing all of the awesome work you just put in. Plus, you'll feel terrible as a result. Eating "whatever you want" during your eating window can lead to hormone imbalance, weight gain and mood swings. Instead, utilizing the proper nutrient timing laid out in The 21 Day Intermittent Fasting Program, you'll feel energized, experience natural weight loss and feel GOOD.

Does this mean that you can't ever have your pasta/pizza/whatever you love to eat ever again? Absolutely not. In fact, this strict "clean eating" mentality can work against your health goals. Learn more HERE.


#3 You'll get HUNGRY

Short answer - no. Especially once you become metabolically flexible. Intermittent Fasting helps to transition your body from a state of carbohydrate burning (fast burn) to fat burning (slow burn). This switch to a fat burning state provides the energy we need, even though we aren't eating during the fast.

Learn more about the science behind IF and hunger HERE.


#4 You can't use Intermittent Fasting if you're a runner

Completely false! In fact, if you're a long distance runner and have had the horrible experience of "hitting the wall" (I've been there with the 2013 LA marathon) or having to strategically gulp down those truly disgusting energy gels, then the idea of having increased energy levels is actually quite intriguing. I know it's a weird concept of having MORE energy by "fasting", but this trains your body to use your fat as fuel more efficiently which can reduce your reliance on having to constantly eat throughout the day (or your race) to keep your energy level up. I go into specific guidelines on how runners/athletes can use Intermittent Fasting with The Athlete Protocol in The Level Up Guide HERE.


#5 You can have collagen/protein during your fast

Nope. Collagen or protein powders consist of amino acids. In the absence of carbohydrates, these amino acids can be converted to carbohydrates which breaks your fast. So if you're a collagen-in-your-coffee person, then definitely switch your collagen to your water or smoothie once you have broken your fast.