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 fully sincere, even small slip-ups can throw off your outcomes, particularly if you happen to’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 together with your blood sugar, set off cravings, or maintain you hungrier than earlier than.
However, the excellent news? Nicely, as soon as you realize the large offenders, it’s simpler to dodge them and deal with the meals that make fasting really feel doable.
Let’s stroll via what meals to keep away from throughout intermittent fasting, why it issues, and what you may seize as a substitute.
Why Sure Meals Can Disrupt Your Quick?
If you’re fasting, the entire level is to present your physique a break from digesting meals so it may deal with different issues, resembling burning saved vitality, regulating blood sugar, and possibly even lowering a bit of 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 undoubtedly 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 shortly, blood sugar shoots up, then crashes. All of a sudden, you’re not simply desirous about your subsequent meal – you’re preventing off cravings that really feel pressing.
Additionally, greasy, heavy meals could be simply as disruptive. To be honest, they received’t essentially elevate blood sugar the identical approach as sugar snacks, however they’ll pressure digestion and trigger that sluggish, weighed-down feeling that makes fasting tougher the following 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 price realizing what to keep away from throughout intermittent fasting and saving these meals for the suitable time in your consuming window. That’s why my information to meals to keep away from whereas fasting goes to make clear all the pieces for you.
Widespread Meals to Keep away from Whereas Intermittent Fasting
When individuals speak about intermittent fasting, the main focus is often on what to eat when your consuming window opens.
Sure, that issues for certain, however the flip aspect – realizing what meals to keep away from whereas intermittent fasting – is simply as essential. 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, once you’re fasting, your physique’s operating on a special rhythm, proper? So, your insulin is decrease, your digestion will get a break, and also you’re principally primed to burn fats for vitality.
However the mistaken meals on the mistaken time? It could 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 if you happen to truly need the advantages you’ve been working for. And I’m not saying these meals are “unhealthy” typically – simply know when to eat them, and after they’re going to work in opposition to you.
Sugary Meals and Desserts
Let’s begin with the essential meals to keep away from whereas intermittent fasting: sugar, snacks, and desserts. Sweet, pastries, donuts – principally something that’s loaded with sugar – can mess together 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 degree jumps, and your physique switches out of fat-burning mode.
That’s why you’ll usually get that fast burst of vitality, adopted by a crash that leaves you attempting to find increasingly sugar. When you’re critical about preserving 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 may appear innocent in comparison with sweet & the above-mentioned snacks, however your physique treats them virtually the identical approach, imagine it or not.
They break down quick, elevate blood sugar, and don’t maintain you full for lengthy. To simplify this: it means you’re hungrier sooner, and fasting turns into extra of a psychological combat & problem than it must be.
When you’re opening your consuming window, go for carbs which have some fiber and vitamins in them. They’ll offer you regular vitality as a substitute of a spike and crash. You possibly can all the time verify 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 immediately 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 may 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 truly surprises loads of you. Espresso loaded with cream and syrup, smoothies, soda, vitality drinks, even alcohol – they’ll all break your quick sooner than you suppose.
To be sincere, liquid energy go down simply, however they nonetheless set off the identical responses in your physique as stable meals. Which implies? Nicely, 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, follow water, black espresso, or unsweetened tea. It’s boring, I do know, nevertheless it retains you in that fasting zone.
Last 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 approach simpler to disregard than the “what to eat” half. However skipping it?
As talked about a number of occasions 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 chances in your favor so that you’re not battling cravings each different hour.
If you reduce out the standard 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 may truly follow.
So sure, begin easy.
Keep in mind to be constant. Take note of how your physique feels once you keep away from the stuff that messes together with your progress.
And if you happen to want concepts to maintain your consuming window full of excellent meals that also tastes superb, there’s an entire world of recipes and guides right here on Match Males Cook 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 keep up.
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. Finest 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 help satiety and regular vitality throughout your consuming window.
Sure, there are. Meals that make fasting tougher embody high-sugar treats, refined carbs, and greasy processed snacks. These may cause vitality crashes and stronger starvation throughout your subsequent quick.
Drinks protected throughout intermittent fasting are plain water, black espresso, and unsweetened tea. Keep away from any with sugar, milk, or cream, as they’ll break your quick.
