Are Kiwis Acidic? Is Kiwi Good For Acid Reflux?

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Christina Ross
Christina Ross
I'm a human being on planet earth. I've lived hundreds of lifetimes. In this incarnation I'm here to advance medicine.

Did you know that the name “kiwi” derives from the New Zealand bird, but kiwi fruits are originally from China? Regardless of their origin, kiwis have become beloved fruits worldwide. Their tart, sweet, and refreshing taste often leads to a common question: are kiwis acidic or alkaline?

Kiwis are indeed acidic, with a pH range of 3.1 to 3.96. These delicious fruits contain high levels of quinic, citric, and malic acids, which contribute to their acidity. If you suffer from acid reflux or GERD, you may need to avoid kiwis. Despite their acidity, kiwis offer numerous health benefits for the heart, digestion, weight management, and skin.

To learn more about the pH level of kiwis and their impact on acid reflux, read on.

The pH Range of Kiwi Fruits

The pH range of kiwis varies from 3.1 to 3.9, depending on their maturity and variety. Since anything below pH 4 is considered highly acidic, kiwis fall into this category.

Here is a look at the pH variation of different kiwi varieties:

Kiwi VarietypH Range
Kiwi Berries3.1 to 3.9
Red Kiwi3.1 to 3.9
Golden Kiwi3.7
Hardy Kiwi3.0
Green Kiwi Fruit3.1 to 3.4
Kiwi Juice3.2 to 3.34

Are Kiwis Acidic, Alkaline, or Neutral?


Kiwis are acidic fruits with a pH range of 3.1 to 3.96. This acidity is due to the presence of three main acids: malic acid, quinic acid, and citric acid. These acids lower the pH level of kiwis, contributing to their tart and tangy flavor.

Is Kiwi Juice Acidic?

Some people think that kiwi juice is less acidic than the fruit itself, believing that diluting it with water reduces its acidity. However, kiwi juice has a pH range of 3.2 to 3.34, making it just as acidic as the whole fruit.

Is Yellow Kiwi Fruit Acidic?

Yellow kiwi fruit has a pH of 3.7, indicating it is an acidic fruit. However, yellow kiwis are slightly less acidic than green kiwis and are sweeter in taste. Additionally, yellow kiwis are more nutritious than their green counterparts.

Are Red Kiwis Acidic?

Red kiwis, known for their exceptional sweetness and tropical aftertaste, have a pH range of 3.1 to 3.9, making them highly acidic.

Is Kiwi Good for Acid Reflux?

Given their pH level of less than 4 and high acid content, kiwis can exacerbate acid reflux. The high sugar content in kiwis can lead to increased stomach acid production, worsening acid reflux symptoms.

Furthermore, the acidity of kiwis can cause a burning sensation, vomiting, and esophageal irritation. Those with acid reflux may experience gassy bloating, a bitter taste, and irritation in the esophagus when consuming kiwis.

However, kiwis are not entirely off-limits for those with acid reflux. Consult with a healthcare professional to determine if and how you can include kiwis in your diet without aggravating your symptoms.

Is Kiwi More Acidic Than Oranges?

Kiwis are similarly acidic to oranges and can sometimes be more so. Oranges have a pH ranging from 3.0 to 4.0, while kiwis range from 3.1 to 3.96, making them slightly more acidic in some cases.

The acidity in oranges comes from ascorbic acid, while in kiwis, it is due to malic, quinic, and citric acids. Both fruits are highly nutritious and rich in vitamin C, minerals, and antioxidants. However, if you have acid reflux, it’s best to moderate or avoid consuming these fruits.

Are Kiwis Good for You?

Despite their acidity, kiwis are incredibly beneficial to your health. They are packed with essential vitamins and minerals that support overall well-being.

Nutritional Value of Kiwi

One medium kiwi contains the following nutrients:

Vitamin C64 mg
Vitamin E1.0 mg
Carbohydrates10.1 g
Calcium23.5 mg
Potassium215 mg
Fiber2.1 g

Health Benefits of Kiwi

  1. Heart Health: A diet including kiwi can reduce the risk of cardiovascular disease by increasing high-density lipoprotein (HDL) or “good” cholesterol, reducing triglycerides, and limiting platelet aggregation. Kiwi also helps manage blood pressure due to its potassium content and enzyme inhibition properties.
  2. Prevent Constipation: Kiwi’s high water-holding capacity and viscosity help bulk and soften stool. The fruit’s probiotic enzyme, actinidin, also contributes to its laxative effects, making it suitable for people suffering from constipation.
  3. Aid Cancer Treatment: Kiwi fruit extracts have shown potential benefits in preventing oxidative damage to DNA, which can reduce cancer risk. The high vitamin C content helps fight free radicals, while fiber in kiwis aids in battling cancers affecting the digestive system.
  4. Weight Loss: Kiwis are low in calories and fat but high in fiber, making them an excellent addition to a weight loss diet.
  5. Healthy Skin: Kiwi is rich in vitamin C, which aids in healing skin lesions and scars, producing connective tissue, and giving the skin a firmer appearance. It is often used in skincare products for its smoothing and healing properties.


Are Kiwis Hard to Digest?

Kiwi is not hard to digest. In fact, it can improve digestion. Eating one or two kiwis after a protein-heavy meal can aid digestion due to the actinidin enzyme, which breaks down protein more efficiently than our digestive enzymes.

Is Kiwi Good for IBS?

Kiwi can benefit those with IBS (Irritable Bowel Syndrome). Consuming kiwi fruit has been shown to reduce colon transit time, increase stool frequency, and improve bowel function, making it suitable for individuals with IBS.

Are Kiwis Sweet or Sour?

The taste of kiwis can vary depending on the variety. Some kiwis, like the red kiwi, have a sweet and tropical aftertaste, while others have a more tangy bite. Regardless of their variety, kiwis are incredibly nutritious, with a flavor that balances sweet, sour, and assertive notes, making them a popular addition to a healthy diet.

Final Thoughts

Are kiwis acidic? Yes, they are. While this fruit is packed with nutrition and health benefits, its high acidity can be a concern for those with acid reflux. If acid reflux is a concern, consult with a doctor about consuming kiwis.

Despite their acidity, kiwis are filled with vitamins, minerals, and antioxidants that can significantly benefit your health. Enjoy kiwis in moderation to reap their benefits without adverse effects.


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