Why Do Kiwis Burn My Tongue: The Tingly Truth

Ever bitten into a fresh, juicy kiwi and felt an odd tingling or burning sensation on your tongue? Asking yourself the question: “Why do kiwis burn my tongue”?

If you have, you’re not alone. This phenomenon is more common than you might think. Let’s delve into why this happens and how you can enjoy your favorite fruit without the burn.

Why Do Kiwis Burn My Tongue?

Kiwis burn your tongue because they contain an enzyme called actinidin. Actinidin is one of the proteolytic enzymes, also known as proteases.

These enzymes break down proteins into their component amino acids (smaller building blocks). They play vital roles in processes like digestion, where they help break down dietary proteins into absorbable forms. This is why kiwi fruit can be used as a meat tenderizer!

However, when actinidin comes in contact with the sensitive skin inside our mouths, especially the tongue, it starts breaking down the protein-laden surface cells. The enzyme acts on the proteins in the mouth, leading to that tingling or burning sensation.

Factors That Worsen the Burn

Certain factors can make the “burn” or tingling sensation from kiwis more pronounced. Some groups of people might be more susceptible.

Let’s take a look:

1. Individual Sensitivity: Some people might be more sensitive to the effects of proteolytic enzymes, experiencing a stronger or more noticeable burning sensation than others when they eat kiwi fruit.
2. Open Sores or Cuts: If someone has micro-cuts, sores, or abrasions in their mouth, the proteolytic enzymes in kiwi (actinidain) can interact more directly with these wounds, leading to a stronger burning sensation.
3. Allergic Reactions: Some people may be allergic to kiwi. An allergic reaction to kiwi can result in itching, burning, swelling of the lips, tongue, and throat, and more severe symptoms if the allergy is profound. It’s crucial to differentiate between the mild “burning” sensation caused by the enzymes and an actual allergic reaction.
4. Eating Unripe Kiwis: Unripe kiwis tend to have higher levels of proteolytic enzymes, which leads to a more pronounced burning sensation compared to riper kiwis.
5. Certain Medical Conditions: People with certain conditions, such as oral allergy syndrome (linked to birch pollen allergy), may experience a heightened reaction to kiwi due to a cross-reactivity with proteins in the fruit.
6. Other Foods: Eating kiwi with other foods with similar enzymes (like pineapple or papaya) can amplify the tingling sensation.

If you notice a pronounced or painful burning sensation after consuming kiwifruit, or if you experience other symptoms like difficulty breathing or swelling, it’s essential to consult with a healthcare professional to rule out a potential allergy or other medical concerns.

How To Stop Kiwis From Burning Your Tongue

To reduce or prevent the burning sensation caused by kiwis on the tongue, you can try the following methods:

1. Cook the Kiwi: Cooking can deactivate the enzyme (actinidin) responsible for the burning sensation. You could consider using kiwi in cooked dishes or desserts if you’re sensitive.
2. Rinse with Cold Water: After cutting or eating a kiwi, rinse your mouth with cold water. This can help wash away some of the enzymes.
3. Consume Kiwi With Dairy: Dairy products can help neutralize the effects of the enzyme. Consider pairing your kiwifruit with yogurt or having a glass of milk on the side.
4. Eat Ripe Kiwis: Unripe kiwis have a higher concentration of the enzyme that causes the burning sensation. Choose a kiwi that is ripe and soft to the touch before you eat it.
5. Limit Quantity: If you’re sensitive to kiwis, try eating them in moderation. Instead of consuming a whole kiwi, you could eat only half or a few slices.
6. Avoid Eating the Skin: The skin contains more of the enzyme compared to the flesh. Peeling the kiwi before eating can help reduce the tingling effect.
7. Eat Kiwi After Other Foods: If you love raw kiwi but dread the burn, consider consuming it after other foods. Eating other foods first can provide a protective barrier in your mouth, minimizing the direct contact of the kiwi’s enzymes with the sensitive areas.
8. Oral Antihistamines: If you suspect an allergic reaction rather than just sensitivity to the enzyme, consider taking an oral antihistamine. However, always consult with a healthcare professional before taking any medication.

Remember, while the burning sensation is uncomfortable, it’s not harmful for most people. However, if you experience severe reactions like swelling, itching, or difficulty breathing after consuming kiwi, seek medical attention immediately, as this could be a sign of a more serious allergy.

Read more: 6 Papaya Juice Benefits – The Tasty Drink That’s Full of Goodness

Kiwi Burn Summary

The tingling or burning sensation some people experience when eating kiwi comes from actinidin, a proteolytic enzyme that breaks down proteins in the mouth, making them feel tender or sore.

This ‘kiwi burn’ can be intensified if you have heightened sensitivity or when you eat them in larger quantities. On the flip side, to enjoy kiwifruit without the burn, you can employ strategies such as cooking the kiwi, which deactivates the enzyme, or eating it after other foods to offer some protection for your mouth.