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Apples and diabetes

How apples affect diabetes and blood sugar levels

Apples are delicious and nutritious. But are apples good for people with diabetes? Here's how apples affect blood sugar levels and how to eat them.

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This article is based on scientific evidence, written by experts, and fact-checked by experts.
We look at both sides of the argument and strive to be objective, unbiased, and honest.
Last updated on September 24, 2022, and last reviewed by an expert on July 18, 2022.

Apples are delicious, nutritious, and convenient to eat. They’re known to have several health benefits. Yet apples also contain carbs, which can affect blood sugar levels.

However, the carbs found in apples affect your body differently than the sugars found in foods containing refined and processed sugars.

Let’s talk about how apples affect blood sugar levels and how to incorporate them into your diet if you have diabetes.

Apples are nutritious and filling

Apples are one of the most popular fruits in the world. They’re also highly nutritious. Apples are high in:

One medium apple contains 104 calories, 27 grams of carbs, and 9 milligrams of vitamin C.

A large part of an apple’s nutrient value is found in its colorful skin. So washing and keeping the skin on when eating or cooking is the best way to optimize the nutrition you’re getting.

Furthermore, apples contain large amounts of water and fiber, which make them surprisingly filling.

Summary: Apples are a good source of fiber, vitamin C, and antioxidants. They also help you feel full without consuming a lot of calories.

Apples contain carbs and fiber

If you have diabetes, keeping tabs on your carbohydrate intake is important.

That’s because the three macronutrients — carbs, fat, and protein — carbs affect your blood sugar levels the most.

That being said, not all carbs are created equal. A medium apple contains 27 grams of carbs, but 4.8 of those are fiber.

Fiber slows down the digestion and absorption of carbs, causing them to not spike your blood sugar levels nearly as quickly.

Studies show that fiber may be protective against type 2 diabetes and that many types of fiber can improve blood sugar management.

Summary: Apples contain carbs, which can raise blood sugar levels. However, the fiber in apples helps stabilize blood sugar levels, in addition to providing other health benefits.

Apples only moderately affect blood sugar levels

Apples do contain sugar, but much of the sugar found in apples is fructose.

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When fructose is consumed in whole fruit, it has very little effect on blood sugar levels.

Also, the fiber in apples slows down the digestion and absorption of sugar. This means sugar enters the bloodstream slowly and doesn’t rapidly raise blood sugar levels.

Moreover, polyphenols, which are plant compounds found in apples, also may slow down the digestion of carbs and lower blood sugar levels.

Apples score relatively low on both the glycemic index (GI) and the glycemic load (GL) scales, meaning that they should cause a minimal rise in blood sugar levels.

Summary: Apples have a minimal effect on blood sugar levels and are unlikely to cause rapid spikes in blood sugar, even in those with diabetes.

Apples may reduce insulin resistance

There are three types of diabetes — type 1, non-insulin-dependent (type 2), and gestational diabetes.

Type 1 diabetes is an autoimmune disorder in which your pancreas doesn’t produce enough insulin, the hormone that transports sugar from your blood to your cells. Insulin must be taken daily.

If you have type 2 diabetes, your body commonly doesn’t produce enough insulin to meet your daily needs, in addition to cellular resistance to the insulin that’s produced.

Eating apples regularly has the potential to reduce insulin resistance, which should lead to lower blood sugar levels.

This is because the polyphenols in apples, which are found primarily in apple skin, stimulate your pancreas to release insulin and help your cells take in sugar.

Suggested read: 10 best breakfast foods for people with diabetes

Summary: Apples contain plant compounds that may improve insulin sensitivity and reduce insulin resistance.

Antioxidants found in apples may lower the risk of diabetes

Several studies have found that eating apples is linked to a lower risk of diabetes.

A 2019 review of studies indicated that eating apples and pears was linked to a decreased risk of cardiovascular problems and type 2 diabetes.

Three cohort studies from 2013 found that greater consumption of whole fruits, specifically blueberries, grapes, and apples, was linked to a lower risk of type 2 diabetes. The same was not found for fruit juice, however.

There are multiple reasons apples might help prevent diabetes, but the antioxidants found in apples likely play a significant role.

Antioxidants are substances that prevent some harmful chemical reactions in your body. They have numerous health benefits, including protecting your body from chronic disease.

Significant amounts of the following antioxidants are found in apples:

The highest concentrations of beneficial antioxidants are found in Honeycrisp and red delicious varieties of apples.

Summary: Eating apples regularly may help prevent type 2 diabetes, as well as keep your blood sugar levels stable.

Should people with diabetes eat apples?

Apples are an excellent fruit to include in your diet if you have diabetes.

Most dietary guidelines for people living with diabetes recommend a diet that includes fruits and vegetables.

Fruits and vegetables are full of nutrients such as vitamins, minerals, fiber, and antioxidants.

Suggested read: 12 high carb foods that are incredibly healthy

In addition, diets high in fruits and vegetables have repeatedly been linked to lower risks of chronic diseases, such as heart disease and cancer.

While apples are unlikely to cause spikes in your blood sugar levels, they do contain carbs. If you’re counting carbs, be sure to account for the 27 grams of carbs an apple contains.

Also, be sure to monitor your blood sugar after eating apples and see how they affect you personally.

Summary

Apples are a delicious and healthy food to add to your diet, regardless of whether you have diabetes or not.

Here are some tips for people with diabetes to include apples in their meal plans:

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