coffee out of ketosis

Does Coffee Kick You Out of Ketosis?

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Some people can’t start the day without a good cup of coffee. Without it, you feel like you won’t be able to achieve a task or even interact with people properly.

But what about its impact on the keto diet? Does coffee kick you out of ketosis?

We talk about the health benefits of coffee, whether coffee is keto-friendly or not, as well as keto-friendly coffee recipes you can try.

coffee out of ketosis

Health Benefits of Coffee

Coffee comes with many health benefits.

Concentration and Mood

Coffee is well-known for enhancing your cognition through improving reaction time, alertness, and short-term memory.

Research also states that caffeine can positively affect your mood and levels of fatigue.

It can even affect your long-term brain health by helping to prevent dementia, Alzheimer’s, and other neurodegenerative diseases.

Cardiovascular Health

Coffee drinkers have a lower risk of cardiovascular disease, type 2 diabetes, and heart attacks.

Decreases Muscle Pain

Coffee is a common pre-workout drink, but a study found that it can lower your post-workout muscle pain by 48%.

It can also enhance your body’s response to strength exercise.

Avoids Inflammation

Inflammation is one indicator of many chronic diseases.

Coffee includes antioxidants like anti-inflammatory polyphenols. These protect your cells from damage and inflammation.

Promotes Weight Loss

Various studies have shown that caffeine promotes fat loss by suppressing appetite, making it valuable for weight management. 

Is Coffee Keto-Friendly?

Experts have opposing answers as to whether coffee is keto-friendly or not.

That’s because it depends on what type of coffee you’re drinking.

Insulin resistance is the inability of your cells to absorb glucose, raising blood glucose levels, and causing weight gain. Insulin resistance also puts your ketosis at risk. 

Coffee, when mixed with too much sugar, caramel, and other flavorings, may kick you out of ketosis.

Steer clear of “light” or “skinny” coffee which has non-fat milk and high-carb sweeteners. For example, a 16-ounce (475 ml) Starbucks Skinny Mocha contains 14 grams of net carbs.

It is also possible that studies about caffeine raising blood sugar levels were not able to explain that the response may occur in those who aren’t used to drinking coffee.

There’s even emerging research that suggests caffeine may boost ketone levels. 

In fact, coffee in its purest form has no carbs. 

In one study, 10 healthy adults consumed coffee for breakfast every day. 

One group consumed 2.5 mg per kg body weight, while the other drank 5mg per kg body weight. Their blood ketones increased by 88% and 116%. 

It’s also worth noting that the breakfast included a total of 85 grams of carb.

In another study, it was suggested that coffee itself may help prevent type 2 diabetes, whether it is caffeinated or decaffeinated. 

Health Risks of Coffee

Unfortunately, coffee also has some health risks.


In one study, the ingestion of a modest dose of coffee increased their stress hormones called cortisol.

Elevated cortisol levels may increase appetite, food intake, and fat storage.


Caffeine can interfere with your sleep since it stimulates the central nervous system.

That is why it is most ideal to drink your cup of Joe in the morning. 

Caffeine Dependence

Consuming caffeine can lead to dependence.

Withdrawal symptoms include headaches and occasional nausea. Vomiting also occurs in heavy caffeine drinkers who suddenly go hours without coffee.

Does Coffee Kick You Out of Ketosis?

The answer depends on what type of coffee you’re drinking.

Coffee, in its purest form, won’t kick you out of ketosis because it has no carbs.

Feel free to enjoy a cup of black coffee in the morning without feeling guilty.

However, coffee can kick you out of ketosis if it has too much sugar, caramel, and other flavorings. 

Frappuccino, non-fat, and high-carb coffee, and other types of coffees may kick you out of ketosis, depending on the amount of carb and your carb limit.  

How Much Coffee Should I Drink on Keto?

Some people drink more than a cup of their bulletproof coffees, while others can’t even finish a cup without feeling bloated.

This depends on your body. Pay attention to its response to your caffeine intake.

Make sure your coffee does not contain carbs, sugar, and non-fat ingredients.

What is Keto Coffee?

The keto diet is high-fat and low-carb. Thus, keto coffee is coffee that is high in fats to help your body enter ketosis quickly.

Keto coffee is black coffee made with added grass-fed butter and medium-chain triglycerides (MCT) oil

Ketones are produced in the liver from this high-fat beverage when you accompany it with low-carb meals. 

The MCTs in keto coffee also help you stay fuller for longer to prevent overeating. 

However, despite its benefits on keto, it’s recommended to limit keto coffee intake to one cup a day. 

Also, the scientific community hasn’t studied other benefits of coffee and fats together.

Rapidfire Keto Coffee is an instant way to start your morning right while staying in ketosis.

Available in caramel macchiato, French vanilla, and original, this low-carb instant drink has grass-fed butter, MCTs from coconut oil, and Himalayan salt.

It guarantees to up your ketone levels and promote weight loss, better metabolism, and brain function. 

It is gluten-free, soy-free, and has no artificial ingredients.

Keto-Friendly Coffee Recipes

Another way to enjoy coffee on keto is by brewing pure black coffee. 

However, if you want it creamy, sweeten it up with 1-2 drops of stevia and add unsweetened almond milk.

For the best keto coffee recipe, add a tablespoon of MCT oil to your morning cup of coffee.

You may also add organic, grass-fed butter and a pinch of cinnamon


How do I Know if My Coffee Kicked Me Out of Ketosis?

The best way to find out if your coffee kicked you out of ketosis is by testing your ketone levels. This can be done through your urine, breath, or blood.

Another way to find out is if you are experiencing the keto flu. Symptoms of the keto flu include bad breath, leg cramps, constipation, and more.

Learn more about the keto flu here!

What is MCT Oil?

MCT oil is a keto diet staple made of saturated fats.

Because they don’t need digestive enzymes to break down, they can be converted to ketone right after they are consumed. 

Learn more about MCT oil here.

What Else Can I Drink on Keto?

Aside from keto coffee, you can also enjoy the following drinks on keto:

  • flavored water
  • protein shake
  • keto smoothies
  • beer
  • dry wine.

Learn more about keto drinks other than water now!

Can I Add Whipped Cream to My Keto Coffee?

Yes, but use keto whipped cream instead of regular store-bought whipped cream.

Keto whipped cream is a mix of heavy whipping cream and stevia.

Our recipe for keto whipped cream can be found in our article on keto desserts.

Enjoy Your Coffee on Keto!

Now that we’ve spilled the beans, you already know that coffee won’t kick you out of ketosis, as long as it is free from sweeteners and other high-carb ingredients.

Although coffee has benefits for your ketosis and overall health, it also has some downsides like anxiety and insomnia.

Limit your coffee intake to a cup or two a day to maximize the benefits while avoiding the risks.

Feel free to add MCT oil to your coffee to keep it keto-friendly! Learn about the best MCT oil for keto dieters now! 

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