Coffee during the juice cleanse?

Better not, but don't stop abruptly either. Traditionally, caffeine is omitted during fasting at the latest the day before starting (DGE, 2018). Those who drink several cups a day and only stop on the first day of the cleanse will add caffeine withdrawal to the fasting process. That is why it is worth not making coffee a topic during the juice cleanse and instead reducing it in the days prior.

The table also shows why coffee during a juice cleanse is so significant. A large cup contains more caffeine than several cups of green tea.

If you have black coffee during a juice cleanse, a single cup in the morning is no big deal if the withdrawal is otherwise too much for you to handle. Skip the milk and sugar, as they add extra calories to your cleanse.

Caffeine is a fixed part of the day for many. If it is suddenly removed, the body often reacts with headaches, fatigue, and bad moods. A randomized study of 100 regular coffee drinkers examined this precisely in 2026. On caffeine-free days, participants had headaches on 30 percent of days, compared to only 10 percent on days with coffee (Randa et al., 2026). Furthermore, when headaches occurred, they were significantly more severe without coffee. This is exactly what many people experience who cut out coffee during a juice cleanse from one day to the next.

For your cleanse, this means that anyone who abruptly stops coffee during a juice cleanse can easily mistake the withdrawal for the fasting itself. Both feel similar, and in the end, the cleanse gets the blame. You can find more about the typical ailments of the first few days in our article on headaches, feeling cold, and hunger during a juice cleanse.

The best way to handle coffee during a juice cleanse starts three to four days before. Instead of quitting overnight, halve your intake step by step. This gives your body time to adjust before food intake is also removed.

• Four days before, drink only half your usual number of cups.
• Three days before, replace one cup with green tea.
• Two days before, have one small cup in the morning, with the rest being tea and water.
• On the day before the cleanse, stop drinking coffee, just as recommended for traditional fasting.

With this staged plan, coffee during a juice cleanse is no longer an issue for most people. If you usually drink five cups or more, plan for five days so that giving up coffee doesn't spill over into the first few days of your cleanse.

Our article on juice cleanse preparation shows what the transition days look like in total. You will also find a simple meal plan there for the days leading up to it.

The best way to handle coffee during a juice cleanse starts three to four days before. Instead of quitting overnight, halve your intake step by step. This gives your body time to adjust before food intake is also removed.

• Four days before, drink only half your usual number of cups.
• Three days before, replace one cup with green tea.
• Two days before, have one small cup in the morning, with the rest being tea and water.
• On the day before the cleanse, stop drinking coffee, just as recommended for traditional fasting.

With this staged plan, coffee during a juice cleanse is no longer an issue for most people. If you usually drink five cups or more, plan for five days so that giving up coffee doesn't spill over into the first few days of your cleanse.

Our article on juice cleanse preparation shows what the transition days look like in total. You will also find a simple meal plan there for the days leading up to it.

Not everyone manages to abstain, and that’s okay. If you have a severe headache on the first morning despite preparation, a small cup of black coffee is often a better choice than calling it a day. The important thing is that it remains just that one cup. A simple rule applies to coffee during a juice cleanse: one cup at most, only in the morning, and always black.

Decaffeinated coffee can help you maintain the ritual. The taste remains, as does the cup in your hand, only the caffeine is largely absent. For some, that is exactly the trick to replacing coffee during a juice cleanse without a guilty conscience.

It’s a different story if you are sensitive to caffeine, pregnant, or taking medication. In that case, it is best to consult your doctor about coffee during a juice cleanse beforehand. During pregnancy, the EFSA recommends a maximum of 200 milligrams of caffeine per day anyway, which is about two cups of filter coffee (Federal Centre for Nutrition, 2026). Our article on who a juice cleanse is suitable for will help you decide if a cleanse is right for you at that time.

A new morning routine helps the most. The warm mug is often more important than the caffeine. Many people miss the ritual of coffee during a juice cleanse more than the pick-me-up effect. A herbal tea in the morning, for example with ginger or peppermint, gives you the same ritual without the withdrawal.

Green tea is a gentle transition. It contains caffeine, but significantly less than coffee. In the first few days of the cleanse, a cup in the morning can make saying goodbye to coffee during the juice cleanse easier. After that, water and herbal tea throughout the day will suffice. By the second or third day, many notice that they miss coffee less than they thought they would during the juice cleanse.

Also pay attention to the sugar in your juices, as it affects how awake you feel throughout the day. Vegetable-based juices keep the day calmer than fruit-heavy ones, as shown in our article on calories and sugar in a juice cleanse. You can find all variations in the overview of our juice cleanses.

Coffee during a juice cleanse is not forbidden, but it is an unnecessary stumbling block. Abstinence causes headaches for many, which is clearly measurable in a 2026 study. Therefore, it is best to scale down your caffeine intake in the days leading up to the cleanse. Those who plan for coffee during the juice cleanse in advance will start more calmly and won't succumb to withdrawal during the first few days.

If you are still struggling on the first morning, a small cup of black coffee is better than giving up. Coffee during the juice cleanse should remain the exception, not the rule. The same applies in reverse for afterward: start with one cup and see how you tolerate it. Our article on how to properly transition after a juice cleanse explains how to do this.