It turns out the tingling sensation that some feel when eating kiwi is not an allergy but an encounter with tiny crystals. Kiwi is loaded with calcium oxalate crystals that burst when chewed, creating a sensation akin to needles scratching the mouth. To many people, those effects are not allergic, but mechanical. Kiwifruit has a different kind of fiber, one that impacts your body's distinction. It's often an overlooked part of the fruit. Even the skin tops the fiber list.
A Fiber-rich Fruit and its Edible Roots
Kiwi is a small, oval-shaped fruit that grows on woody vines. Kiwis have a unique texture, tasting tart and sweet, sometimes with a slightly acidic taste. Inside, the fruit yields a vibrant green or golden flesh and small, black edible seeds. The kiwi plant comes from China and the seeds are edible, according to a Kiwi Kiwi website. Kiwifruit can also be green or gold with firm skin that is either hairy or smooth, depending on the variety. The taste can vary from sweet to tangy. The varieties have different appearances and nutritional values. Green kiwis, in particular, are known for their tartness, while gold kiwis have a sweeter and less tart flavor. Kiwi's signature crystals are calcium oxalate, a naturally occurring substance. The crystals act as a defense mechanism for the plant, discouraging animals from eating the kiwi's leaves and stems. When the kiwi is consumed, the crystals burst open, creating a tingling, even prickling sensation. The crystals are too small to be seen with the naked eye and so they're harmless. The prickling sensation is generally a fun experience for some, quite like grapefruits, strawberries, or pineapples that all feel almost prickly or "tingly." For most people, this prickling is a familiar feeling if they eat enough of these foods.
Fiber's Impact on Digestion
Why the distinction between kiwi and psyllium husk matters? Kiwis are part of good gut health. Fiber helps to maintain a healthy digestive system and bowel health. Nearly every study on the kiwi and digestion is funded by the kiwi industry. Yet it stands out in benefits. According to the caption, Gearry et al., conducted a 2023 trial involving 184 mildly constipated adults. The results were clear: two green kiwis a day provided nearly two additional bowel movements per week. Psyllium husk, a common fiber supplement, only managed one extra. The kiwi also performed better in gentleness, leaving patients with fewer side effects. Pssyllium husk has been shown to help with controlling blood sugar. There's also some evidence that may help with cholesterol. So while psyllium has its own benefits, especially for blood sugars, it's clear that it doesn't offer the same gut health benefits that kiwi does. There's a reason why kiwi has gained the reputation of being a superfood.
Discovering the Benefits of Skin
The Fiber Richness of Kiwi's Skin
The skin of the kiwi fruit adds about 50% to the fruit’s fiber content. This skin contains many essential vitamins and minerals like potassium, vitamin C, and folate, helping with heart health and digestion. But despite the benefits, the fleshy skin may prove an acquired taste. So many don’t eat it and instead peel the skin, often throwing it away, which may discard a big part of the fiber. In order to eat the skin, first, wash it. The skin is not harsh or bitter, but many people don't like the feel of it. The skin contributes to the distinctive flavor of kiwi, and the hairy skin of a kiwi removed skin can be eaten, but the flavor is different, more like when you peel a banana. The hairy kiwi fruit skins are rough and not appetizing to eat. The smooth kiwi fruit, however, is almost appetising. Both types of kiwi, the hairy smooth, are packed with nutritional benefits. Like chia seeds, flaxseeds, and other similar foods, kiwifruits can help improve your diet, enabling you to boost your health. But you have to include these things in your diet in order to reap the benefits. The health of your gut can improve if you eat the skin and seed. There are other health effects. You might be able to benefit from consuming kiwifruit as part of your diet.
Kiwi and Your Sleep
The kiwi fruit helps you sleep. Both the skin and seed are edible. The kiwi fruit is known for promoting sleep. Your brain makes its own serotonin. The kiwi's never gets in. So wash the skin. Don't peel it. That tingle is just crystals. Sleeping aids are not the result of eating kiwi. The kiwi fruit has been praised by many who say the fruit has many health benefits. Scientists, however, have never been able to prove how it works. While the kiwi's ability to help you sleep isn't well documented, many believe it might help with your blood pressure. There isn’t much scientific evidence to support that a kiwi will help you sleep, but many people claim it does. Many claim that it helps you sleep.
Other Potential Benefits and Uses
Many people have linked the kiwi fruit to its health benefits, including that it might help with your blood pressure and sleep. Many people also say it may help with prostate health and even problems with blood sugar. There’s no clear evidence to support these claims. The kiwi fruit can be eaten raw. Or, it can be added to any dish from smoothies to salads. Anchovies can also be added to salads. Kiwis can be made into jams, jellies, and ice cream. Like avocados, kiwis are an excellent source of vitamin C. Kiwis can also be dried and made into fruit leather. Finally: Kiwi fruit has a distinctive flavor and a unique, pricking sensation. But those benefits don’t cover the full benefits.
Questions readers ask
What exactly causes the tingling sensation when you eat a kiwi?
The tingling or prickling sensation comes from tiny calcium oxalate crystals found in kiwifruit. These crystals burst when chewed, creating a sensation similar to needles scratching the mouth. It's a mechanical response, not an allergic reaction.
Can I eat the skin of a kiwi?
Yes, the skin of a kiwi is edible and actually adds about 50% to the fruit’s fiber content. It contains essential vitamins and minerals, but it may have an acquired taste for some people.
How does kiwi compare to psyllium husk for digestive health?
Kiwi has been shown to provide more bowel movements per week than psyllium husk, with fewer side effects. While psyllium husk may help with blood sugar and cholesterol, kiwi stands out for its digestive benefits.
Are there different varieties of kiwi?
Yes, there are different varieties of kiwi, including green and gold. Green kiwis are known for their tartness, while gold kiwis have a sweeter and less tart flavor. The nutritional values can vary between the varieties.
Does the tingling sensation from kiwi affect everyone the same way?
No, the sensation can vary. For some, it's a fun, familiar experience, while for others, it might be more pronounced. It's similar to the tingling you might feel from eating grapefruits, strawberries, or pineapples.
Can kiwi help with constipation?
Yes, studies have shown that eating two green kiwis a day can provide nearly two additional bowel movements per week, making it a helpful fruit for those with mild constipation.
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