How to stop drinking Coke and other cola soda, and the app that helps

Here's how to stop drinking Coke, the Coca-Cola soda: pick a swap drink first, plan for the moment you reach for a can, then either stop at once or cut down over a few weeks. I built an app called FizzFree for exactly this, so I'll show where it fits. Many people get headaches for a few days.

I made FizzFree, so read the app parts knowing that. The plan works with or without it.

Key points

• A 12 oz can of Coke has 39 g of sugar, per USDA FoodData Central, and 34 mg of caffeine, per Coca-Cola. Daily Coke is a sugar habit and a caffeine habit at once.
• Pick the swap drink before day one. Cold, fizzy and ready beats any amount of willpower.
• Name your Coke moment. For most people it's around 3 pm or with lunch.
• At three or more cans a day, tapering is gentler than cold turkey. FizzFree's Taper Dial lowers a weekly allowance step by step.
• Headaches are common for a few days. They pass.

Why is a daily Coke habit so hard to drop?

Because it's three habits in one can. There's sugar, there's caffeine and there's the routine: the lunch, the desk, the drive home. You can beat one of those with a decision. Beating all three at once is why so many people give up on day two.

The numbers add up fast. The USDA FoodData Central record for a 12 oz can of Coca-Cola lists 39 g of sugar and 138 calories. The NHS says adults should have no more than 30 g of added sugars a day, and that a single can of cola can hold as much as 9 sugar cubes. Three cans a day comes to 117 g of sugar. I did that sum on a napkin once and stopped buying the 12 pack. Well, mostly.

Caffeine is the quieter part. Coca-Cola lists 34 mg in a 12 oz can of Coke, and 46 mg in Diet Coke. That's far less than a mug of coffee, but it's every day, and your body notices when it stops. For the science on the pull, see is soda addictive.

How do you stop drinking Coke every day?

Plan the swap, plan the moment, then pick your pace. Most daily Coke drinkers have one or two fixed times when the can appears. If you've got something ready for those exact times, the rest of the day mostly looks after itself. Here's the order I'd do it in.

1. Pick the swap first. Sparkling water with lime, iced tea without sugar, or anything cold you actually like. I listed more in what to drink instead of soda. In FizzFree, put it on the Swap Shelf.
2. Find the 3 pm moment. Write down when you drank Coke for three days. The pattern is usually obvious. FizzFree's Fizz Map nudges you 10 minutes before each one.
3. Clear the house. Don't keep a "just in case" can in the fridge. It will be the case.
4. Choose cold turkey or a taper. See the next section.
5. Have a craving plan. Ride the Fizz in FizzFree is a 90 second exercise: hold a finger down, breathe slowly, then decide. Most cravings fade before the 90 seconds are up.

Should you quit Coke cold turkey or taper off?

If you drink one can a day, cold turkey is usually fine. If you drink three or more, taper. A slow cut gives your body time to adjust to less caffeine, so the headaches tend to be milder. The FDA also advises cutting caffeine gradually if you drink it daily.

Your habit	Pace I'd pick	How it looks
1 can a day or less	Stop at once	Swap from day one, ride out a few rough afternoons
2 to 3 cans a day	Short taper	Drop one can a week until you reach zero
4 or more cans a day	Longer taper	Lower the weekly allowance in small steps over a month or so
Diet Coke or Coke Zero	Taper	Less sugar to lose, more caffeine to step down from

FizzFree's Taper Dial does the counting for you. Set a weekly allowance, say 21 cans, and lower it a step each week. On iPhone, the Taper Dial arrives with version 2.0, which is in App Store review as I write.

My opinion: tapering gets less credit than it deserves. People treat it as the weak option. It isn't. It's the one that works for more people who drink a lot. If your habit is mostly diet, I wrote separately about quitting Diet Coke and about Coke Zero and Diet Coke.

Will you get headaches when you stop drinking Coke?

Many people do, for a few days. A review of caffeine withdrawal studies by Juliano and Griffiths found symptoms usually start 12 to 24 hours after the last dose, peak in the next day or two, and last 2 to 9 days. Headache showed up in about half of people in the experiments.

The same review found symptoms even after stopping doses as low as 100 mg a day. Three cans of Coke is about 102 mg. So yes, a Coke habit can be enough.

The FDA says withdrawal isn't dangerous but can be unpleasant. Water, sleep and a slower taper all help. If you drink a lot of caffeine, are pregnant or have diabetes, talk to your doctor before you change what you drink. The week by week version is in what happens when you stop drinking soda and the caffeine withdrawal timeline.

Which app fits you?

If Coke is your only habit, an app made only for soda is the closer fit. FizzFree tracks Coke, Diet Coke, Coke Zero, other sodas, malt drinks and energy drinks in one check-in, with caffeine and sugar skipped and money kept. Other apps fit better if you're quitting several things or want a community.

• FizzFree: Quit Soda Tracker. Soda only. Taper Dial or stop at once, caffeine and sugar tracking, Ride the Fizz, Fizz Map, Swap Shelf. 28 languages on Android, no account. Version 2.0 on Google Play since 27 October 2026; iPhone 2.0 is in App Store review, so iPhone has version 1.5 with a streak, savings and a craving timer until then.
• Quitzilla. Tracks any habit, several at once, with time and money saved. Good if Coke is one of a few things you're cutting.
• I Am Sober. Built for alcohol and other addictions, with a daily pledge, milestones and a community. Good if you want other people around you.
• NoFizz: Quit Soda Now. A 100 day guided program with a daily checkup, on iPhone only.

See FizzFree, or get it on Google Play or the App Store. If you drink Fanta or Sprite more than Coke, there's a plan in how to quit Fanta and fizzy drinks.

This guide is also written for readers in other languages: Deutsch, Français, Español, Italiano, Nederlands and Português do Brasil.

Frequently asked questions

How to stop drinking Coca-Cola, is there an app?

Yes. FizzFree: Quit Soda Tracker is an app I made only for soda, Coca-Cola included. It tracks the sugar, caffeine and money you skip, lets you stop at once or taper with the Taper Dial, and helps with cravings through Ride the Fizz. It runs on Android and iPhone with no account.

How do I stop drinking Coke every day?

Pick a swap drink, write down when you usually drink Coke, and plan for those times. Clear the cans from your fridge. At three or more a day, cut one can a week rather than stopping at once. Track it in an app so the progress stays in front of you.

Is it better to quit Coke cold turkey?

Only if you drink one can a day or less. At higher amounts, tapering usually means milder headaches, and the FDA advises cutting caffeine gradually. Cold turkey is faster. A taper is easier to stick to. Pick the one you'll actually finish.

How long do headaches last after you stop drinking Coke?

For most people, a few days. The Juliano and Griffiths review found caffeine withdrawal usually starts within 12 to 24 hours and lasts 2 to 9 days. If headaches are severe or don't ease, see a doctor.

How I wrote this

I wrote this on 29 October 2026. Sugar and calories come from the USDA FoodData Central record for a 12 oz can of Coca-Cola, caffeine from Coca-Cola's own caffeine page, sugar guidance from the NHS, caffeine guidance from the FDA, and withdrawal timing from the Juliano and Griffiths review on PubMed. The other apps are described from their store listings, read on 25 October 2026. I made FizzFree, and its details come from the app and its Google Play listing. Coca-Cola, Coke, Diet Coke and Coke Zero belong to their owner, and I have no link with them.

This is general information, not medical or veterinary advice. Ask your doctor before you change your caffeine intake if you have a health condition.

By John Osakwe, founder of Etest Tech Hub. I have built apps and websites since 2015, including Etest CBT, FizzFree and Pawlarm.