Lots of people begin intermittent fasting with one query in thoughts: What ought to I eat? However the flipside issues simply as a lot – what ought to I keep away from?
To be utterly trustworthy, even small slip-ups can throw off your outcomes, particularly in case you’re placing within the effort to stay to your consuming and fasting home windows. And it’s not nearly energy & counting – some meals can mess along with your blood sugar, set off cravings, or hold you hungrier than earlier than.
However, the excellent news? Properly, as soon as the large offenders, it’s simpler to dodge them and give attention to the meals that make fasting really feel doable.
Let’s stroll by what meals to keep away from throughout intermittent fasting, why it issues, and what you possibly can seize as an alternative.
Why Sure Meals Can Disrupt Your Quick?
If you’re fasting, the entire level is to offer your physique a break from digesting meals so it may give attention to different issues, similar to burning saved power, regulating blood sugar, and possibly even decreasing a bit irritation. The issue is, some meals (and drinks, after all) pull you proper out of that zone earlier than you even understand it.
Sugary snacks are positively one of many quickest methods to spike your insulin, which shuts down fat-burning and may depart you hungrier than you had been earlier than that meal.
The identical factor is with refined carbs. Your physique digests them rapidly, blood sugar shoots up, then crashes. Abruptly, you’re not simply enthusiastic about your subsequent meal – you’re preventing off cravings that really feel pressing.
Additionally, greasy, heavy meals will be simply as disruptive. To be truthful, they received’t essentially elevate blood sugar the identical method as sugar snacks, however they will pressure digestion and trigger that sluggish, weighed-down feeling that makes fasting tougher the subsequent day.
And sure, even “wholesome” drinks like smoothies or fancy espresso orders can sneak in sufficient energy to interrupt your quick with out you realizing it.
If you’d like the total advantages of intermittent fasting, it’s value realizing what to keep away from throughout intermittent fasting and saving these meals for the proper time in your consuming window. That’s why my information to meals to keep away from whereas fasting goes to make clear the whole lot for you.
Frequent Meals to Keep away from Whereas Intermittent Fasting
When individuals discuss intermittent fasting, the main target is often on what to eat when your consuming window opens.
Sure, that issues for positive, however the flip aspect – realizing what meals to keep away from whereas intermittent fasting – is simply as vital. I’ve seen individuals crush their quick all morning, solely to undo all that progress with one snack or drink they didn’t even suppose twice about.
The factor is, whenever you’re fasting, your physique’s working on a unique rhythm, proper? So, your insulin is decrease, your digestion will get a break, and also you’re principally primed to burn fats for power.
However the fallacious meals on the fallacious time? It may possibly throw that off in minutes. We’re speaking about blood sugar spiking, cravings kicking in, and your starvation management going out the window.

Listed here are the large classes of meals to keep away from throughout intermittent fasting in case you really need the advantages you’ve been working for. And I’m not saying these meals are “dangerous” typically – simply know when to eat them, and once they’re going to work in opposition to you.
Sugary Meals and Desserts
Let’s begin with the fundamental meals to keep away from whereas intermittent fasting: sugar, snacks, and desserts. Sweet, pastries, donuts – principally something that’s loaded with sugar – can mess along with your quick in a minute.
These aren’t simply empty energy; they’re a direct hit to your blood sugar. As soon as it spikes, your insulin stage jumps, and your physique switches out of fat-burning mode.
That’s why you’ll typically get that fast burst of power, adopted by a crash that leaves you attempting to find increasingly more sugar. If you happen to’re critical about retaining cravings down whereas fasting, save the desserts for a deliberate deal with throughout your consuming window, not mid-fast.

Refined Carbs
White bread, common pasta, crackers – these might sound innocent in comparison with sweet & the above-mentioned snacks, however your physique treats them virtually the identical method, imagine it or not.
They break down quick, elevate blood sugar, and don’t hold you full for lengthy. To simplify this: it means you’re hungrier sooner, and fasting turns into extra of a psychological struggle & problem than it must be.
If you happen to’re opening your consuming window, go for carbs which have some fiber and vitamins in them. They’ll offer you regular power as an alternative of a spike and crash. You’ll be able to at all times examine the intermittent fasting plan I’ve written on my weblog to get some concepts.
Processed Snacks and Junk Meals
Chips, packaged crackers, quick meals fries – these are a double drawback. They’re excessive in energy and low in diet, they usually’re designed to be so addictive.
You suppose you’ll have a handful and transfer on, however instantly the bag’s empty, and also you’re questioning what simply occurred?!
Additionally, these snacks and junk meals are typically excessive in sodium and unhealthy fat, which might depart you feeling bloated and sluggish. Not precisely the sensation you need after sticking to a quick, am I proper?
Excessive-Calorie Drinks
This one really surprises a variety of you. Espresso loaded with cream and syrup, smoothies, soda, power drinks, even alcohol – they will all break your quick quicker than you suppose.
To be trustworthy, liquid energy go down simply, however they nonetheless set off the identical responses in your physique as strong meals. Which implies? Properly, this implies the fat-burning pause button will get hit, and your starvation can spike proper after.
If you wish to drink one thing throughout your fasting hours, keep on with water, black espresso, or unsweetened tea. It’s boring, I do know, nevertheless it retains you in that fasting zone.
Remaining Ideas
If there’s one factor I’ve realized watching individuals strive intermittent fasting, it’s that the “what meals to keep away from” half is method simpler to disregard than the “what to eat” half. However skipping it?
As talked about a number of instances on this article, that’s the place issues can go sideways quick. Selecting the best meals isn’t about being flawless – it’s about stacking the percentages in your favor so that you’re not battling cravings each different hour.
If you lower out the same old troublemakers – sugary meals, refined carbs, processed snacks, high-calorie drinks – you make fasting really feel lighter, virtually simpler, as a result of your physique isn’t always spiking and crashing. And that’s the entire level: make it one thing you possibly can really keep on with.
So sure, begin easy.
Bear in mind to be constant. Take note of how your physique feels whenever you keep away from the stuff that messes along with your progress.
And in case you want concepts to maintain your consuming window full of fine meals that also tastes superb, there’s a complete world of recipes and guides right here on Match Males Prepare dinner ready for you.
FAQs About Meals to Keep away from Whereas Intermittent Fasting
Meals to keep away from whereas intermittent fasting embody sugary snacks, refined carbs, fried meals, and processed junk. These can spike blood sugar, set off cravings, and make fasting tougher to take care of.
Sure, synthetic sweeteners can generally break a quick by triggering an insulin response. Whereas calorie-free, they could nonetheless have an effect on starvation and cravings. Greatest to skip them throughout fasting hours.
The perfect meals whereas intermittent fasting is nutrient-dense, complete meals – lean proteins, greens, wholesome fat, and slow-digesting carbs that assist satiety and regular power throughout your consuming window.
Sure, there are. Meals that make fasting tougher embody high-sugar treats, refined carbs, and greasy processed snacks. These could cause power crashes and stronger starvation throughout your subsequent quick.
Drinks secure throughout intermittent fasting are plain water, black espresso, and unsweetened tea. Keep away from any with sugar, milk, or cream, as they will break your quick.