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Intermittent fasting has been in the spotlight for a few years now, due to its health benefits. But there’s no exact rulebook on how exactly to follow it.
So it can be tricky to figure out what foods and drinks to consume after fasting—and how many calories actually break a fast. For example, during a fasting window, can you have coffee and tea? What about healthy snacks? Is there some kind of calorie limit here? Also, what’s the best thing to eat and drink when you’re ready to break your fast?
Meet the experts: Scott Keatley, RD, is a dietitian at Keatley Medical Nutrition Therapy. Jessica Cording, RD, is a dietitian and author of .
So many questions. But don’t stress—dietitians have answers about what does (and doesnt) break a fast. Heres everything you need to know.
Hey there, fam! If you’re wondering, “Does bacon break a fast?” then you’ve stumbled on the right spot. I’m gonna lay it out straight for ya—yes, bacon does break a fast. Why? ‘Cause it’s got calories, fat, and protein that kick your body outta that fasting state faster than you can say “sizzle.” But hold up, there’s a lotta layers to this, and I’m here to unpack it all with you. Whether you’re new to intermittent fasting or a seasoned pro tempted by that crispy goodness, let’s dive deep into what’s really goin’ on when you sneak a slice during your fasting window.
We at [Your Company Name] get it—fasting is tough, and bacon is basically the siren song of breakfast foods. So let’s break down the nitty-gritty of fasting why bacon messes with it, and how you can still enjoy that porky perfection without wreckin’ your goals. Grab a coffee (black, if you’re fasting!), and let’s chat.
What Even Is Intermittent Fasting, Anyway?
Before we get into whether bacon is your fasting frenemy, let’s make sure we’re on the same page about what intermittent fasting (IF) is. In simple terms, IF ain’t about what you eat—it’s about when you eat. You cycle between periods of eating and not eating, givin’ your body a break from digesting food to do some cool internal cleanup.
Here’s the basic rundown of popular IF styles
- 16:8 Method: Fast for 16 hours, eat during an 8-hour window. Most folks skip breakfast and eat from, say, noon to 8 PM.
- 5:2 Diet: Eat normally for 5 days a week, then cut down to like 500-600 calories on 2 non-consecutive days.
- Eat-Stop-Eat: Do a full 24-hour fast once or twice a week. Brutal, but some swear by it.
- Alternate Day Fasting: Alternate between normal eating days and very low-calorie or full fasting days.
The whole point? When you’re not munchin’ your body switches gears. Instead of burnin’ food for energy, it starts tappin’ into fat stores. Plus there’s this fancy thing called autophagy where your cells clean house, gettin’ rid of junk. But here’s the kicker—fasting usually means no calories during the fasting window. And that’s where bacon comes in to mess things up.
Why Does Bacon Break a Fast? Let’s Talk Science (Kinda)
Alright, let’s get to the meat of the issue—pun intended! Bacon breaks a fast ‘cause it ain’t just air and good vibes. It’s packed with stuff that tells your body, “Yo, we’re eatin’ now!” Here’s why:
- Calories, Duh: A single slice of bacon has about 40-50 calories, dependin’ on how thick it’s cut. Fasting, at its core, is about zero or near-zero calorie intake during the fast. Even one slice is enough to snap you out of it.
- Fat and Protein: Bacon’s got fat (about 3-4 grams per slice) and protein (about 3 grams). Both of these can trigger an insulin response, which basically shuts down fat-burnin’ mode and tells your body to store energy instead.
- Possible Sugars: Some bacon is cured with sugar or maple syrup—check them labels! That tiny bit of carb can spike blood sugar, further messin’ with your fast.
When you’re fasting, your insulin levels drop low, and your body gets into ketosis or starts autophagy. Pop a piece of bacon in your mouth, and boom—insulin might creep up, and those fasting benefits go poof. I’ve been there, thinkin’ “just one bite won’t hurt,” only to feel my energy tank and cravings kick in harder. It’s a slippery slope, y’all.
But Wait—What If It’s Just a Tiny Bit of Bacon?
I hear ya. You’re thinkin’, “What if I just have a crumb? Like, half a slice? Does that really break my fast?” Well, lemme be real with ya—it depends on how strict you are and what kinda fast you’re doin’. Let’s break this down with a lil’ table for clarity:
Amount of Bacon | Calories (Approx.) | Likely to Break Fast? | Why? |
---|---|---|---|
1 Full Slice | 40-50 | Yes | Enough calories + protein to trigger insulin |
Half a Slice | 20-25 | Probably | Still has calories, might nudge insulin |
Tiny Crumb | 5-10 | Maybe Not | Minimal impact, but not pure fasting |
Here’s the deal: If you’re doin’ a strict water-only fast, even a crumb ain’t allowed. But some folks do what’s called “dirty fasting,” where they allow small amounts of stuff like cream in coffee or a nibble of somethin’ fatty, believin’ it won’t fully knock ‘em outta ketosis. I’ve tried this myself, and honestly, it’s a gamble. Sometimes I feel fine; other times, I’m hungry as heck an hour later. If your goal is max benefits like autophagy, stick to zero calories. No bacon, no exceptions.
What Breaks a Fast, Anyway? The Big Picture
Since we’re on the topic of bacon, let’s zoom out a sec and talk about what generally breaks a fast. This’ll help ya see where bacon fits in the grand scheme. Here’s the lowdown:
- Anything with Calories: If it’s got more than a couple calories, it’s likely gonna break your fast. That includes food, sugary drinks, and even some supplements.
- Stuff that Spikes Insulin: Protein and carbs are the main culprits. Fat might be less of an issue for some, but it still counts as energy.
- Artificial Sweeteners (Maybe): Some say zero-calorie sweeteners are fine; others reckon they can trick your body into an insulin response. I’ve had mixed luck with these.
- Chewing Gum: Even sugar-free gum might mess with ya ‘cause of the chewing action—it gets your digestive juices flowin’.
Water, black coffee, and plain tea are usually safe bets. I stick to water mostly ‘cause coffee sometimes makes my stomach grumble, which ain’t fun when I’m tryin’ to fast for 16 hours. Bacon, though? It’s way up there on the “nope” list during fasting hours.
Can You Have Bacon During Eating Windows?
Hell yeah, you can! Here’s the beauty of intermittent fasting—your eating window is your playground. When that clock hits your “go” time, you can chow down on bacon to your heart’s content (well, within reason—don’t go cloggin’ them arteries). I love me a good bacon and egg scramble during my eating window. It’s high-fat, keeps me full, and honestly, after fasting, it tastes like heaven on a plate.
Just a heads-up, though—bacon ain’t exactly a health food. It’s processed, often loaded with sodium, and sometimes has nitrates that some folks worry about. I ain’t sayin’ don’t eat it, but maybe don’t make it your everyday vibe. Mix it up with some veggies or lean protein to keep things balanced.
Myths About Fasting and Bacon—Let’s Bust ‘Em
There’s a lotta weird ideas floatin’ around about fasting and what you can sneak in. I’ve heard ‘em all, and I’ve even fallen for a few. Let’s clear up some myths related to bacon and fasting:
- Myth 1: “Fat Doesn’t Break a Fast”: Some folks think since bacon is mostly fat, it’s fine for fasting, especially if you’re keto. Nah, fam. Fat still has calories—9 per gram, actually. It’s energy, and your body will use it instead of burnin’ your own stores.
- Myth 2: “A Little Won’t Hurt”: I used to think this too. Just a nibble, right? But even small amounts can shift your metabolism outta fasting mode. It’s sneaky like that.
- Myth 3: “Bacon Helps Fasting ‘Cause It’s Filling”: Sure, bacon is satisfyin’, but only during eating windows. Eatin’ it while fasting just starts the digestive process and kills the whole point.
I’ve had buddies swear by tiny bits of bacon fat in their coffee durin’ a fast, claimin’ it “helps” with hunger. Tried it once—didn’t work for me. Made me hungrier, if anything. Stick to the rules if you want real results.
Tips for Fasting Without Givin’ Up Bacon Entirely
Look, I get it—bacon is life for some of us. Givin’ it up completely feels like losin’ a best friend. So, how do ya balance fasting with your love for that crispy, salty goodness? Here’s some tricks I’ve picked up along the way:
- Save It for Eating Windows: Plan your meals so bacon’s a reward after fasting. I legit look forward to my first meal ‘cause I know there’s bacon waitin’ for me.
- Distract Yourself During Fasts: When cravings hit, sip water, chew gum (if you’re okay with it), or go for a walk. Keep your mind off that fridge full of bacon.
- Try Turkey Bacon: It’s leaner, sometimes lower in calories, though it still breaks a fast. Use it as a swap during eating times if you’re watchin’ fat intake.
- Batch Cook and Freeze: Cook a buncha bacon ahead of time and freeze portions. That way, you ain’t tempted to fry some up during fasting hours. Outta sight, outta mind, ya know?
One weird thing I do is smell bacon-scented candles when I’m fasting. Sounds crazy, but it tricks my brain into thinkin’ I’m gettin’ a fix without actually eatin’. Hey, whatever works, right?
My Personal Struggle with Bacon and Fasting
Lemme tell ya a quick story. When I first started intermittent fasting, I was all gung-ho. Did the 16:8 thing, felt like a champ. But man, mornin’ cravings for bacon hit me hard. I’d be sippin’ water at 10 AM, smellin’ imaginary bacon in the air, wonderin’ if I could just have one piece and call it good. Spoiler: I caved once or twice. And guess what? My hunger went through the roof, and I felt sluggish. Learned my lesson the hard way—bacon and fasting windows don’t mix.
Now, I plan my eating window with bacon in mind. It’s like a lil’ celebration every day when I break my fast. I’ve even got my fam on board—we do bacon brunches on weekends durin’ our eating times. It’s all about timin’, y’all. You don’t gotta ditch bacon; just gotta play the game smart.
What Else Might Break Your Fast? Sneaky Culprits
Since we’ve covered bacon, let’s chat about other stuff that might trip ya up during a fast. I’ve made plenty of oopsies here, thinkin’ somethin’ was “fine” only to realize it wasn’t. Watch out for:
- Flavored Drinks: Some zero-calorie sodas or teas got sneaky sweeteners that could mess with insulin. I got burned by a “diet” drink once—never again.
- Bone Broth: Sounds innocent, right? Nope, it’s got protein and calories. I thought it was a fasting hack ‘til I read up on it.
- Medications or Supplements: Some pills got sugar coatings or fillers. Check with a doc if you’re unsure. I had to switch to plain capsules for my vitamins.
Stick to the basics—water, maybe black coffee or tea. Keep it simple, and you won’t accidentally break your fast like I did more times than I care to admit.
How to Make Bacon Work with Your Fasting Goals
If you’re dead-set on keepin’ bacon in your life (and who ain’t?), here’s how to make it jive with fasting without derailin’ your progress. We at [Your Company Name] got your back with these ideas:
- Portion Control: During eating windows, don’t go hog-wild (see what I did there?). A couple slices with eggs or in a salad keeps ya satisfied without overdoin’ it.
- Pair with Good Stuff: Add bacon to veggies or lean meats. I throw it in with broccoli or spinach—tastes amazin’ and balances out the fat.
- Timing Is Everythin’: Eat bacon early in your eating window so your body has time to process it before the next fast. I’ve noticed I sleep better when I don’t eat heavy right before my window closes.
One funky trick I’ve tried is usin’ bacon bits as a topping instead of whole slices. Less calories, still that smoky flavor. Might sound odd, but it works for me when I’m tryin’ to cut back a bit.
Wrappin’ It Up—Bacon and Fasting Can Coexist (Sorta)
So, does bacon break a fast? Yup, it sure does, fam. Them calories, fat, and protein ain’t playin’ nice with your fasting goals. But that don’t mean you gotta say goodbye to bacon forever. Use your eating windows wisely, plan your meals, and don’t let cravings boss ya around during fasting hours. I’ve been there, wrestlin’ with the temptation, and I’ve figured out ways to make it work without feelin’ deprived.
Fasting is a powerful tool for health, weight loss, or just feelin’ better in your own skin. Don’t let a lil’ thing like bacon trip ya up. Stick to water and no-calorie drinks while fasting, and save the good stuff for when it’s time to feast. We’re rootin’ for ya here at [Your Company Name], and I’m confident you can crush your fasting game while still enjoyin’ life’s tasty bits. Got questions or your own bacon-fasting stories? Drop ‘em below—I’d love to hear how you’re makin’ it work!
What To Eat While Fasting
While you can’t eat food while fasting, some intermittent fasting schedules allow you to consume these low-calorie beverages:
- Water. “Water is fine, for sure,” Keatley says. This includes still or sparkling water, although flavored waters get a little dicey because they usually contain some calories.
- Coffee. Black coffee has about five calories per cup, which is technically not nothing, Keatley points out. Still, he says, most people have black coffee during fasting periods and do just fine. Make sure to skip add-ons like milk, creamer, or sugar, though—“that will have an effect on your fast,” Cording says.
- Tea. Brewed tea typically contains the same calories as a cup of black coffee or less. The same rules apply here as they do for coffee, Cording says.
Some people will drink chicken broth or bone broth, or add MCT oil, ghee, or coconut oil to their coffee during a fast, but all of these can technically “break” your fast, Cording notes. Foods like bone broth, specifically, have plenty of protein. “What can happen is, when you consume the broth, your body uses the amino acids as fuel and then you’re no longer in the fasting state,” she says.
How many calories break a fast?
Technically, fasting means refraining from having any kind of food—so, as a result, any amount of calories will technically break a fast, says Scott Keatley, RD, of Keatley Medical Nutrition Therapy. There’s unfortunately no hard-and-fast rule (or research) providing the set number of calories that are okay for breaking a fast, says Jessica Cording, RD, author of The Little Book of Game-Changers.
“As soon as you consume enough calories to give your body energy to do anything, that brings you out of that fasting state because your body has been given fuel to work with,” says Cording. But everyone’s metabolism is different, so what jumpstarts you out of a fast may be different from what does the same for your friend, she notes.
These 5 Things Will Not Break Your Fast: MAKE NOTE! – Dr.Berg
FAQ
Will one piece of bacon break my fast?
Technically, any food or beverage that contains calories and/or affects blood sugar levels breaks a fast.
Can I eat bacon on intermittent fasting?
With intermittent fasting, bacon’s protein and fat content make it satisfying during eating windows, but its calorie density means portions still matter …May 13, 2025
Does bacon break ketosis?
Yes bacon is 100 % Ketogenic friendly dish, as it has pork meat and fat… cooked in butter or oil which in turn is fat…… So You can snack as much bacon as you want.
What foods don’t break a fast?
Strictly speaking, any amount of calories will break a fast. If a person follows a strict fasting schedule, they may need to avoid any food or drinks containing calories. Those following a modified fasting diet can often eat up to 30% of their daily calorie needs while fasting, though the exact amount may vary.