• Autumn Bates, CCN, MS

How Long Does Intermittent Fasting Take to Work?

Updated: May 27

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Deep down, we're all a little impatient. Honestly, I don't even mind admitting that I'm impatient. In my opinion, impatient people get things done! :) So it's not unusual that one question people have about Intermittent Fasting is "how long will it take?". In fact according to google, this question has suddenly BLOWN UP the google search bar in the past 3 days. So I decided to break it down for you guys and give you ALL the deets you need to know about Intermittent Fasting and exactly how long it takes to start seeing results.

First of all... what is Intermittent Fasting?

I kind of wish it was called "intermittent eating" instead of Intermittent Fasting... because that's really what it is. You naturally fast while you sleep everyday - Intermittent Fasting takes this "fast" a little bit further. (That's also why your breakfast is called "break-fast"🤯) In order to truly "fast", you need to wait at least 12 hours from your last meal (at dinner). 12 hours is when autophagy starts to kick in and your cells begin cleaning themselves out (see the next section for more details). Ideally, you want to aim for a 16 hour fast with an 8 hour "eating window". This does NOT mean just skipping a meal OR reducing your calories. I review all of these details in my 21 Day Intermittent Fasting Program. You can also check out my Intermittent Fasting 101 YouTube Playlist HERE.

How DOES it work?

Without going too deep into the science-y deets, Intermittent Fasting essentially gets rid of bad mitochondria (your cells energy powerhouse) and allows your gut to rest. This combo helps your body become better at using stored fat as an energy source (read: increases fat burning and increases energy levels), decreases inflammation (read: no bloating or puffiness and reduced breakouts) and stabilizes your blood glucose levels by using fat as well as glucose for fuel (read: more stable mood, decreased anxiety). If you're interested in the science, I really dive deep with THIS video.

What are the benefits?

AEN peeps (Autumn Elle Nutrition peeps) have reported:

-weight loss

-increased muscle

-reduced body fat percentage

-MUCH better sleep, specifically deep sleep

-increased energy levels

-significantly reduced bloating

-decreased anxiety

-reduced "puffiness" in the face

-more regular bowel movements

-decreased sugar cravings

-decreased breakouts

Reduced breakouts and scarring after 3 weeks of the 21 Day Intermittent Fasting Program!

How long does it take?

The answer to this question really depends on the individual and their goals. For example, if your goal is to lose 10 pounds, it will take less time than someone looking to lose 50 pounds. How quickly you achieve your goal is relative to what your goal actually is. BUT that doesn't mean you won't start seeing and feeling the other results sooner!

AEN peeps have reported zero bloating after just 24 hours of the Program. After just 2-3 days, they have also reported significantly improved sleep and increased energy levels. After 1 week, reduced sugar cravings and more regular bowel movements. Weight loss results also vary, but AEN peeps have reported a range of 1-5 pounds of weight loss within just the first week of The 21 Day Intermittent Fasting Program.

I personally felt leaner and my breakouts reduced after just two weeks of the Program.

My 2 week results from the Program!

How do you get started?!

One common mistake I see with Intermittent Fasting is people jump in without a plan. I've seen this mistake lead to hormone imbalances, extreme sugar cravings and halted weight loss results. I believe that knowledge is power and with the right tools, you can achieve your wellness dreams! That's why I created The Ultimate 21 Day Intermittent Fasting Program. It contains all of the latest research on Intermittent Fasting, breaks down the science so you can understand what you're doing and why. It even has a 3 week meal-by-meal guide with delicious recipes to help keep you satiated AND your taste buds happy! I'm talking L.A. Street Tacos, Pumpkin Chili, Strawberry Coconut Muffins, Spicy Curry and MORE! ANDDDD the Program includes a 3 week workout program specifically designed for Intermittent Fasting in order to maximize your results!

Strawberry Coconut Muffins from the 21 Day Intermittent Fasting Program!

Are you excited?! Begin your wellness journey HERE!

Check out AEN peeps stories with the Program HERE.

Have questions? I answer ALL of your Intermittent Fasting related questions HERE.

I can't WAIT to follow your journey and see your wellness dreams come true! Connect with me on Instagram @AutumnElle_Nutrition! Feel free to DM me and share your story or just say hello :)

Your Nutritionist,


Autumn Elle Nutrition

*With any lifestyle or dietary change, make sure to consult your doctor before making any changes to your dietary habits.


Manhattan Beach, CA




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Medical Disclaimer

This content is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of such advice or treatment from a personal physician. All readers/viewers of this content are advised to consult their doctors, nutritionists and/or qualified health professionals regarding specific health questions. Neither Autumn Elle Nutrition nor the publisher of this content takes responsibility for possible health consequences of any person or persons reading or following the information in this educational content. All viewers of this content, especially those taking prescription or over-the-counter medications, should consult their physicians before beginning any nutrition, supplement or lifestyle program.

© 2020 by Autumn Bates, CCN

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