Can You Drink Coke Zero While Intermittent Fasting? (Here’s My Honest Take)
Hey, it’s Ismail here.
So, if you’re doing intermittent fasting like I do, I’m pretty sure this question has popped into your head at least once:

“Can I have Coke Zero while I’m fasting?”
I used to wonder the same thing. I’ve been on this fasting journey for a while now, and I want to share what I honestly think about it — not just what you read online, but my real life experience.
Does Coke Zero Break a Fast?
Here’s the short answer: No, it doesn’t.
Coke Zero has no calories, no sugar, and nothing in it that’s going to spike your insulin or mess up your fast. It does have artificial sweeteners like aspartame and acesulfame potassium, but those don’t carry any calories.
Most people in the fasting community agree — as long as you’re not taking in calories, you’re still fasting. So technically, Coke Zero is okay.
But like everything, don’t overdo it.
Is It Actually Healthy Though?
That’s another conversation.
Yeah, it won’t break your fast, but Coke Zero does have sweeteners and caffeine. If you drink too much, it’s probably not the best thing for your body.
Some folks say the sweeteners can trigger cravings or small insulin responses. Personally? That never happened to me. If anything, it helped me stick to my fasting routine.
My Little Coke Zero Hack During Fasting 🥤
I’ll be real with you — during the day, hunger isn’t a big issue for me. I wake up feeling pretty okay, and by the time I start getting hungry, it’s usually close to my eating window anyway.
But nights… that’s where it gets rough.
I work late on my laptop, and out of nowhere, I’d get these insane cravings. Like, I could eat an entire pizza on my own type cravings. It made it so hard to focus on work.
One night, I decided to just try Coke Zero. No idea why. I grabbed a can from the fridge, took a few sips, and honestly? The cravings just disappeared.
I didn’t feel bloated or weird. I just felt full enough to not think about food. Since then, I keep a few cans in the fridge for those tough nights. It’s now part of my routine. Just one small can and I’m good to go until the next day.
My Final Thoughts
If you’re struggling with hunger while fasting — especially late at night — try Coke Zero.
It doesn’t break your fast, it has zero calories, and it might just help you push through the hardest hours.
Just don’t go crazy with it. One can is enough.
If you found this helpful, check out my other posts. I always keep it real here — no BS, just honest experiences and what actually works.
Another Trick If You Don’t Want Coke Zero at Night
I get it – not everyone wants to drink Coke Zero, especially at night. Some people just don’t want to take in caffeine before bed because it messes with their sleep.
Honestly, that’s smart.
I’ve had nights where I couldn’t fall asleep at all. I’d be lying in bed at 3AM, eyes wide open, regretting that Coke Zero I drank earlier.
So, is there a better option if you still want to kill those cravings but avoid caffeine?
Yep. There is.
My Cold Lemon Water Hack 🍋💧
Here’s what I do when I don’t want caffeine at night:
I grab a big bottle — like, a whole liter — fill it up with cold water, and squeeze in the juice of one lemon.
That’s it. No blending, no extra stuff. Just fresh lemon juice squeezed by hand directly into the cold water.
And trust me, the ratio matters. You don’t want too much lemon because it can get sour and mess up your stomach. One lemon for a whole liter of water is perfect.
I just mix it up and start drinking. Sip by sip, it fills my stomach and completely shuts down those late-night hunger cravings.
A Quick Note

⚠️ Don’t add sugar.
Adding sugar will just spike your insulin and ruin your fast. Plus, you honestly don’t need it. The cold lemon water tastes refreshing as it is.
Why This Works For Me
When I drink cold lemon water at night, I feel:
✅ Hydrated
✅ Fresh and light
✅ Not bloated, but my stomach feels full enough to ignore the hunger
And best of all, no caffeine. So I can fall asleep easily after finishing my work, without tossing and turning in bed for hours.
If you’re struggling with late-night hunger but don’t want caffeine, try this cold lemon water hack. It’s simple, cheap, and it actually works.
Another Option If You Don’t Want Coke Zero or Lemon Water
Now, if you’re thinking:
“Okay Ismail, I don’t want Coke Zero… and I’m not in the mood for cold lemon water either.”
Don’t worry. There’s another drink that helped me a lot, especially during winter.
Hot Lipton Tea With Lemon and Mint 🍋☕🌿
Here’s what I do:
I make myself a nice hot cup of Lipton tea. I add a few slices of fresh lemon and a little bit of mint — no sugar, of course.
I used to drink this all the time in winter. You know those cold nights when you just can’t handle drinking something icy? This tea was perfect. Warm, calming, and it helped kill my hunger without making me feel like I’m dieting.
That’s the best part about it — it doesn’t feel like you’re fasting or restricting yourself. It makes you feel free, relaxed, and normal.

What About Coffee?
Now, let’s talk about coffee.
Everyone in the intermittent fasting world recommends black coffee with no sugar. It’s like the number one drink they talk about.
But honestly? I’m not a huge fan.
Whenever I drink black coffee while fasting, it actually makes me feel more hungry. And sometimes, if I drink it on an empty stomach — especially since I’m not a coffee lover — it makes me feel nauseous or even a little dizzy.
But hey, that’s just me.
Everyone’s body is different. Some people drink black coffee while fasting and feel amazing. It kills their hunger and gives them tons of energy.
So if you want, give it a try and see how your body reacts.
Final Thoughts on These Drinks
At the end of the day, all these drinks — Coke Zero, cold lemon water, Lipton tea with lemon and mint, and black coffee — are just tools.
They won’t magically make fasting easy, but they can help you manage those tough hours.
Try them out and see which one works best for you. What matters is finding something that makes your fasting journey feel less like a struggle and more like a lifestyle you can actually stick with.