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Caffeine is a popular ingredient in many beverages and foods, and the keto diet is no exception.

For those following a ketogenic diet, however, the amount of caffeine intake should be managed carefully. As part of a balanced lifestyle, the average amount of ingested caffeine for an adult should be restricted to no more than 400-500mg daily. Caffeine can help increase energy, focus, and alertness, all benefits that come in handy when following a restrictive diet like keto. It can also aid in weight loss, fat burning, and improved physical performance. Despite these potential advantages, there can be too much of a good thing. The keto diet is extremely low in carbohydrates, which means that it can be beneficial for those who are looking for a way to lose weight. Unfortunately, the absence of carbs does not mean that you can consume unlimited amounts of everything else. In fact, there are many foods and drinks that should be avoided on keto because they contain too much sugar or starch. Caffeine is one such ingredient; while it may have benefits when consumed in moderation, consuming too much caffeine on keto can cause side effects such as headaches and dehydration.


Keto dieters should be aware of the potential risks of consuming too much caffeine.

Studies have linked high levels of caffeine consumption with a range of adverse effects, including hypertension, anxiety, and insomnia. Additionally, chronic use of caffeine has been linked to fatigue and restlessness. Caffeine has also been found to increase hunger and cravings, which may result in overeating, particularly processed carbohydrates and sugars. Caffeine is known to disrupt the body’s natural sleep-wake cycle. This can lead to insomnia, which can make it difficult for dieters to get a good night’s rest. Additionally, caffeine has been found to increase levels of stress hormones such as cortisol, which may lead to weight gain in some people.

Although there is no single answer as to how much caffeine is too much on a keto diet, some guidelines may be helpful.

As mentioned above, most adults should limit their daily caffeine intake to 400-500mg, while pregnant women should not exceed 200mg a day. For those following a keto diet, the ideal goal should be to consume less than 250mg of caffeine a day. This amount can be divided up throughout the day so that no more than 50mg of caffeine is consumed at any one time. The reason for this is that caffeine can cause blood sugar fluctuations and increase insulin production. When consumed in large amounts, it can also lead to increased stress levels and elevated cortisol. This makes it harder for the body to burn fat and maintain ketosis.

Keto dieters should be aware of what sources of caffeine they are consuming.

For example, caffeinated beverages such as coffee and energy drinks may contain more caffeine than other sources. Additionally, some supplements that are marketed for keto dieters may contain large amounts of caffeine. It is important to read the supplement’s label to know exactly how much caffeine it contains. If you are a coffee drinker, it is possible that your caffeine intake can be high enough to cause side effects on keto. If you experience any of these symptoms, try reducing your caffeine consumption: Anxiety and irritability, Headaches, Muscle tremors or twitches, and irregular heartbeat.

People on the ketogenic diet should also consider how they consume caffeine.

It is a good idea to consume caffeine with food to slow its absorption and minimize any potential side effects. Additionally, caffeine should be limited late in the day to avoid disrupting sleep. Some people on the ketogenic diet choose to abstain from caffeine. The effects of caffeine can vary widely depending on how much you consume and your body type. However, some people find that abstaining from caffeine lowers their blood sugar levels and helps them stay in ketosis easier.

In summary, caffeine can be a helpful addition to a keto diet, provided it is used in moderation.

Keto dieters should be mindful of how much caffeine they are consuming, what sources they are consuming it from, and how they are consuming it. By taking these important steps, they can lessen the risk of any adverse effects and maximize the benefits of caffeine on the keto diet.

If you have any questions about the use of caffeine on the keto diet, feel free to ask via our contact page. You can also subscribe to our Patreon page for exclusive content and 1:1 mentorship, coaching, and advice.


Alexandra ReedNutrition Coach