Can Eating Banana and Persimmon Together Cause Toxic Reactions? - Internal Medicine

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Hello doctor, I ate a banana around 3 PM, but at 8 PM I had about half a persimmon.
Later, I learned that these two shouldn't be eaten together as they can form a hard mass.
I would like to ask if eating persimmons and bananas really causes poisoning, or if it’s actually fine since there was a 3-4 hour gap.
The only thing I can think of doing now is drinking water, but I’m unsure if I should drink milk as I’ve heard it can protect the stomach.

Hu, 20~29 year old female. Ask Date: 2020/11/07

Dr. Hong Yuanbin reply Internal Medicine


Hello, poisoning refers to the reaction of certain substances within the body.
However, if it involves consuming fruit itself, the content of any harmful substances is usually low and spaced out, so there is no risk of poisoning.
Please don't worry, and thank you for your question.

Reply Date: 2020/11/07

More Info


Eating bananas and persimmons together has been a topic of discussion in various cultures, particularly in traditional medicine. However, the concern about toxicity or adverse reactions from consuming these two fruits together is largely based on anecdotal evidence rather than scientific research.

To address your question directly: eating a banana and then a persimmon several hours later is generally considered safe and should not lead to any toxic reactions. The idea that these two fruits can cause a "hard mass" or toxicity is a myth that has circulated in some communities. The digestive system is quite capable of handling a variety of foods consumed at different times, and the human body has mechanisms to process and break down these foods effectively.

Bananas are rich in potassium, fiber, and vitamins, while persimmons are high in vitamins A and C, as well as dietary fiber. Both fruits offer health benefits and can be part of a balanced diet. The concern about them causing a hard mass likely stems from the fact that persimmons, particularly when unripe, contain tannins that can lead to gastrointestinal issues if consumed in large quantities or if the digestive system is sensitive. However, this is not a concern when they are eaten in moderation and especially not when consumed hours apart from other foods.

As for your question about drinking water or milk after consuming these fruits, staying hydrated is always a good practice, especially if you have any concerns about digestion. Drinking water can help facilitate digestion and prevent any potential discomfort. Milk is often thought to have a soothing effect on the stomach, but it may not be necessary in this case unless you have a specific sensitivity or discomfort that you believe milk could alleviate.

If you experience any unusual symptoms after eating these fruits, such as severe abdominal pain, nausea, or vomiting, it is essential to consult a healthcare professional. However, in the absence of such symptoms, there is no need to worry about the combination of bananas and persimmons.

In summary, eating a banana and then a persimmon several hours later is safe and should not cause any toxic reactions. The digestive system is well-equipped to handle various foods, and the myth surrounding the combination of these two fruits is not supported by scientific evidence. If you have any ongoing concerns about your diet or digestive health, it would be beneficial to speak with a healthcare provider or a registered dietitian for personalized advice.

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