3 Day Fast: A Mind (and Body?) Blowing Experience You Gotta Try

3 day fast breakfast

It Was the Shit That Convinced Me

I’d never seriously considered a fast longer than 24 hours—and definitely not a 3 day fast —until I heard about the shit.

My sister’s boyfriend told me that during his recent 3 day fast what surprised him was his shit. He said at some point towards the end his stomach just emptied out. All sorts of crazy shit (literally) came out. It was kind of like cleaning out your garage for the first time in 30 years.

My garage could use some cleaning. I was sold.

So with my girlfriend Kim out of the house and unable to tease me or tempt me with delicious food, I decided to give a 3 day fast a go. And man was it a mind-blowing experience!

3 Day Fast, Day 0

The Last Meal

To celebrate (mourn?), I made a delicious and humongous Sunday night dinner, capped off with some Toblerone and a cocktail to celebrate. Then I began my 3 day fast. No more cooking, dishes, or chewing for 72 hours. Just water, tea, and black coffee.

I went to sleep feeling like a marathoner about to start his first race.

3 Day Fast, Day 1

3 day fast breakfast
My daily breakfast during my 3 day fast. Coffee and air.

Setting Off on a Voyage of Self-Discovery

My first day was kind of like that of an early explorer setting out in search of the New World. I wasn’t entering new territory—I’d done 24 hour fasts before—but this time it felt different. This time I wasn’t turning back. I felt anxious and nervous.

Monday morning started as usual with my regular routine of heavy lifting at the gym (and a new personal best!) and a bunch of work on my bug food business. Then things got unusual.

Something’s Missing

Normally I’d have a big early afternoon meal, but this time… nothing. Just black coffee. What felt stranger than not eating was not having my ritual break in the middle of my day. Rather than catch up on sports and social media while slurping down a smoothie and some eggs, I just went to work. Who’d have thought fasting could lead to more productivity!?


My girlfriend Kim, who was supposed to be away until Wednesday, surprised me by coming home. And since I hadn’t told her of my 3 day fast plan, she had brought some fresh salmon for dinner. Damn.

Surprisingly though, even as I watched and smelled her delicious-looking meal with some envy, I didn’t feel hungry. I felt good.

3 Day Fast, Day 2

3 day fast lunch
My daily lunch during my 3 day fast. Water and air. Sometimes tea too.

Uncharted Territory

What a weird feeling it is to wake up after a day of zero calories for the first time in my life. I could joke that I feel literally and mentally empty inside, but it didn’t. I felt great. My sleep tracking app even said my sleep quality was 100%.

Feeling Electric

From the morning of day 2 to the end of my 3 day fast, my mind felt electric. Like I was on Adderall. I hadn’t felt more focused in ages.

Here’s my theory as to why: Throughout every day we force our minds to deal with a nonstop onslaught of mental and physical challenges. It’s a steady uphill grind. So if we remove one of the challenges, like digesting food, the hill becomes flatter. Being on more even ground, but in the same gear, means our minds spin extra fast.

Whether my theory makes sense or not, I felt awesome. I worked all morning in a hyper-focused zone. Then when my eyes started to twitch from too much staring at a screen, I walked to the nearby beach to unwind. I tried meditating for 20 minutes and… holy hell! I swear to God at a certain point I felt high. Amazing.

The First Negative Experience

Unlike on Day 1, I definitely didn’t make any personal bests in my Day 2 workout. I felt like I did the day I tried working out after taking the bus from Lima to Huaraz in Peru (an elevation gain of 3000 meters or 10,000 feet). My body felt strong, but it didn’t have the endurance it normally did. After one or two lifts my strength evaporated, and at times I was lightheaded to the point of dizziness. I was glad to have gotten some exercise, but it was certainly the first negative effect I felt on my 3 day fast.

An Unusual Day

Again, not having my ritual meal brakes for lunch and dinner was a trip. Honestly, I missed the ritual even more than the food itself. I didn’t know what to do with myself. It was like double daylight saving time: normally I’m ready for bed at around 11 p.m, but this time I was ready by 9. My brain wouldn’t stop buzzing, though, so I ended up reading in bed for hours.

Oh yeah, and most importantly (and disappointingly): no shit. No number 2 at all on day 2 of my 3 day fast.

3 Day Fast, Day 3

3 day fast dinner
My typical dinner during my 3 day fast. You get the point by now.

What the Hell?

Normally I wake up around 7:15 a.m. Today? At 5 a.m I was up and ready to go. My sleep app told me I had 90% sleep quality.

I still wasn’t hungry and mind felt sharp. So too did my hearing and smelling, which felt strangely super powered. My body though, felt lethargic.

The weirdest feeling though? My mouth.

My mouth was like the factory of a company that had just gone bankrupt. It’s all spic and span and ready to go, but empty. My breath felt strangely fresh and empty and my jaw tight from lack of use. Indeed, the night before I wondered to myself, “Do I actually need to brush and floss?”

Caving In

Do you remember how weird your teeth felt after getting your braces off? Or your arm or leg when the doctor removed your cast? That’s how my stomach felt the last morning of my 3 day fast. It had deflated overnight and felt completely foreign to me. I couldn’t stop touching it with my hand. Normally I can do that stupid trick of sticking out my belly like I’m pregnant, but I couldn’t anymore. It didn’t hurt or anything. It just felt tighter than normal, in a good way.

Pushing the Limit

Feeling mentally sharp but physically lethargic, I nonetheless went to the gym to see just how much juice my body had left. Answer: Only a few drops. I managed about 80% of what I do when nourished. Strangely, I even felt sick to my stomach. When I shot some hoops after to cool down, I could barely make a free throw.

My weight, which normally hovers around 197 lbs, was down to 189.

The End

That afternoon I still wasn’t hungry, but I couldn’t help but daydream from time to time about my upcoming evening meal. I had grand visions of a gluttonous feast where I’d recover all the calories I’d missed out on at once.

Those visions were not realized. I ate half as much as I thought I would and the food didn’t even taste any better. Immediately after eating, I had my first bowel movement since Day 1. Excitedly I went to the toilet. But it wasn’t a “garage cleaning” of crazy shit like I hoped. Just a couple tiny turds.

It was an anticlimactic end to a mind-blowing experience. One that I will definitely be doing again. Maybe even longer next time!


Try Your Own 3 Day Fast!

You should probably prepare yourself by doing some 16-24 hour fasts first. They are great in their own right, and will help wean you off the habit of non-stop snacking. When those get easy, take the plunge and try a 3 day fast of your own. If your experience ends up anything like mine, you’ll never forget it.

Let me know how it goes in the comments, and if you have any questions don’t hesitate to ask.


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