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Attention If you have these 5 diseases, then do not eat water chestnuts even by mistake.
Samira Vishwas | October 21, 2025 7:25 PM CST

Water Chestnut Side Effects: Water Chestnuts are rich in nutrients. Vitamin B6, potassium, fiber and antioxidants are found in abundance in them. But in some special situations or for some people, their consumption can also be harmful. Currently, water chestnuts are available in abundance in the market, but if you have any of these problems then you should avoid consuming it. Let us know which people should avoid eating water chestnuts.

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Water Chestnut Side Effects

1. Those who have allergies: Some people may be allergic to water chestnuts. Its symptoms may include skin rashes, itching, swelling, stomach pain or vomiting. If someone already has a problem with food allergies, then they should be careful before eating water chestnuts.

2. People with digestive problems: Water chestnut is cold and heavy. People who suffer from digestive disorders, gas, indigestion or constipation should eat it in less quantity or not at all, especially raw water chestnut.

3. People with cold nature: According to Ayurveda, water chestnut is of “cold nature”. People who suffer from frequent cold, cough or flu should avoid eating water chestnuts, especially in winter.

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4. Diabetic patients: Although water chestnut has a low glycemic index, it is starchy. In some cases it can affect the blood sugar level. Therefore, diabetic patients should consume it only after consulting a doctor.

5. Thyroid patients: Water chestnut contains some compounds that can affect the absorption of iodine. Especially hypothyroidism patients should eat it in limited quantities only.

When and how to eat water chestnut (Water Chestnut Side Effects)

  1. Boiled water chestnut or water chestnut flour is more digestible.
  2. Eating it after soaking may reduce its coolness a bit.
  3. Take care of cleanliness, especially while eating raw water chestnut.

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