Why Can’t You Eat Bananas with Metronidazole: Antibiotics and Food Interaction


We have tried to align every strong force present in this cosmos so they flourish in our lives. When we discuss well-being, we need to maintain harmony in the world we live in, and while talking about health, it has to do something by maintaining a balance between the food we eat and the medicines we take. Studying this can be complex yet beautiful because we learn to balance our lives. This blog will address the myth surrounding one important question: Why Can’t You Eat Bananas with Metronidazole? If you are on this blog, you’re not the only one curious that bananas can be on a restricted list during antibiotic therapy.

Also, learn about 5 steps to keep in mind while using metronidazole.

Tyramine Content and “Cheese Effect”

Tyramine Content and "Cheese Effect"
Tyramine Content and “Cheese Effect”

Metronidazole is used as an antibiotic to treat bacterial and other parasitic infections.

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Tyramine in Bananas

To give you a heads-up on the topic, it is likely to keep bananas on restricted food while taking medicine as it can interact with tyramine. Bananas have some tyramine content that can interact with the salt of the medicines and prohibit its absorption in the body. This condition can decrease the efficacy of the medicine.

What is the “Cheese Effect”

The term “Cheese Effect” has been associated with the interaction of metronidazole and tyramine content in bananas.

Side Effects of Interaction

  • The possible interaction will increase the levels of tyramine in our body by inhibiting its breakdown. The possible symptoms following this action are headache, nausea, and vomiting.
  • The symptoms experienced by the body are similar to the excessive release of norepinephrine. It is a neurotransmitter that can constrict the blood vessels, leading to a rise in blood pressure.

Metronidazole and Its Use

Metronidazole and Its Use
Metronidazole and Its Use

Metronidazole is an antibiotic that is prescribed to treat various bacteria and parasitic infections. To understand the usage of medicine, we should keep basic things in mind, or we should discuss it with an expert.

1. Indication of Medicine

  • It is a prescribed medicine to treat various infections that are caused by bacteria and parasites.
  • Among those conditions, some of them are amoebiasis, bacterial vaginosis, and trichomoniasis.

2. Mechanism

  • The work mechanism of medicine is simple as it interferes with the DNA of microorganisms.
  • This is particularly effective for anaerobic bacteria, which can also thrive without oxygen.

3. Administration

  • Administering the medicine is easy, and it depends on the severity of the infection being treated.
  • It is available in the form of capsules, tablets, gels, topical gels, and intravenous formulations.

4. Dosage and Potency

  • It will largely depend on the infection being treated and its severity.
  • It is important to follow the prescribed dosage as per the healthcare expert. 
  • The thing to keep in mind is to complete the full course even if symptoms are improved before the completion of medicine.

Also Read: 5 Delicious Fruits That Help Increasing Blood Haemoglobin

Use of Metronidazole During Pregnancy and Breastfeeding

Use of Metronidazole During Pregnancy and Breastfeeding
Use of Metronidazole During Pregnancy and Breastfeeding
  • Pregnancy and breastfeeding are considered the most challenging stages of a woman’s body when it is going through all sorts of changes.
  • The use of metronidazole is considered safe during the second and third trimesters.
  • The medicines do pass through breast milk, and it is recommended that nursing mothers discuss its use with their healthcare advisor.

How to Consume Metronidazole

How to Consume Metronidazole
How to Consume Metronidazole

In the quest to answer an interesting question that might have bothered us during an antibiotic course: “Why can’t you eat bananas with metronidazole.” We are midway through finding out all the possible reasons. Let us discuss the dos and don’ts while using metronidazole.

1. Take The Correct Dosage

  • The medicine needs to be prescribed by an expert healthcare advisor.
  • By examining our bodies, they can determine the medicine’s dosage, frequency, timing, and potency. 

Caution: Please avoid altering the dosage and potency of medicine and use it as per your healthcare expert.

2. Timing and Consistency

  • You can take the medicine with or without food. However, it is said by experts that taking metronidazole on a full stomach will eliminate the chances of stomach upset.
  • Taking the medicine at the same time of day may improve its efficiency. It can guarantee a steady level of medicinal salt in our system. 

Important: We recommend you follow the schedule as per the healthcare expert.

3. Course Duration

  • One of the most important things to remember is to complete the medicinal course no matter what.
  • By that, we mean even if you feel alright and symptoms improve before completion of the medicine. Then also, continue until it finishes. Consulting the doctor can be beneficial.

Note: Stopping the medicine prematurely may result in the persistence of the infection or developing resistance to medicine in the body.

4. Avoid Alcohol Consumption

  • Combing alcohol while we are on an antibiotic course of metronidazole can be very crucial, and health impacts are hazardous.
  • The Antabuse effect is something that is associated with alcohol consumption with the medicine, and it can result in nausea, vomiting, and elevated heart rate.

5. Potential Side Effects

While using any medicine, we should be aware of potential side effects on the body. In this case, these are nausea, dizziness, and feeling of metallic taste.

Important: It is precautionary that if you feel any persistent side effects, contact your healthcare expert immediately.

Must Read: What Level of Alkaline Phosphatase is Dangerous: Navigating the Health Risks

Why Can’t You Eat Bananas with Metronidazole

Why Can't You Eat Bananas with Metronidazole
Why Can’t You Eat Bananas with Metronidazole

The question has been bothering many of us. Many healthcare experts want us to stay away from bananas when we are on prescribed metronidazole.

Note: Although the advice to keep bananas in the restricted food items when on the antibiotic course of metronidazole needs to be better scientifically established.

Precaution is always better than a cure. Precautionary staying away from the tyramine content of bananas can be a good practice for further breakdown, which will better answer” Why Can’t You Eat Bananas with Metronidazole.”

Tyramine Content, Individual Variability, and Other Causes

  • As mentioned earlier, bananas do have tyramine content, but in a limited amount. When it interacts with metronidazole, it may increase the blood pressure.
  • This interaction largely depends on the body type. Some people are much more sensitive and thus can have serious side effects that can include nausea and high blood pressure.

The possible interaction is not universally accepted. In case you have any doubts about the use and side effects of Metronidazole consult a healthcare expert.


We have started our journey by digging deep into the antibiotic world of metronidazole. We learned about its use, side effects, and prescribed dosage. An interesting question that we have addressed with the help of this blog is: “Why can’t you eat bananas with metronidazole? This is possible as bananas have tyramine content, which, in interaction with metronidazole, can increase blood pressure. However, bananas have a limited percentage of tyramine, so the possible interaction with the medicine is limited, and we should not worry much about it. In any case, we recommend seeing an expert healthcare advisor to understand the food to restrict during metronidazole.

Mansi Balodi
Mansi Balodihttps://scriptedsoul.com
My life is always on a run but I try to find time for myself to let my wisdom and knowledge help and guide you. In my blogs, I will try to demystify the complexities of topics and will connect with you with ease of understanding. So let's explore the treasure of the world with words.

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