Can Honey Fight Diabetes?
Sugar

Can Honey Fight Diabetes?

Although honey contains a significant amount of sugar, it differs from regular sugar.
(NataliaZa/Shutterstock)
September 15, 2023
Updated:
January 15, 2024
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This is part 4 in The Ultimate Guide to Kicking Sugar

In this series, we will explore the good and bad sweeteners, uncover the unexpected outcomes of cutting out sugar, and discover the ultimate way to achieve this.

Currently, most health organizations, including the World Health Organization and the U.S. Food and Drug Administration, still classify honey as either free sugar or added sugar. Although honey contains a significant amount of sugar, it differs from regular sugar. Numerous studies and experts have indicated that honey may benefit metabolism, specifically by reducing blood sugar levels.

Types of Sugars Found in Honey

Honey is a delightful gift from nature. With variations based on the source plants and other factors, there are more than 300 types of honey worldwide.
In general, honey is made up of about 17 percent water, and 95 to 99 percent of the remaining dry matter is sugar. Among these sugars, the major components are fructose and glucose. On average, 100 grams of honey contains approximately 38.5 grams of fructose and 31 grams of glucose.
Notably, 14 percent of the sugars in honey are rare sugars, many of which are formed during the maturation process of honey. These rare sugars are uncommon in nature and are believed to have beneficial health effects.

“Honey should not be categorized as free sugar. It is different,” Tauseef Khan, a research associate in the Department of Nutritional Sciences at the University of Toronto’s Temerty Faculty of Medicine, told The Epoch Times.

Mr. Khan said honey is a “complex mixture of sugars” and that rare sugars, which have unique benefits, aren’t complex carbohydrates but are usually found in the form of monosaccharides or disaccharides. These sugars possess potential metabolic effects, and many also serve as prebiotics.

Compared with regular sugar, honey can lower fasting blood sugar levels, reduce bad cholesterol, and raise good cholesterol.

“Those effects are very surprising; if it was normal sugar, then those effects should not have been there,” Mr. Khan said.

In a statement discussing the discovery that honey can reduce cardiometabolic risk, John Sievenpiper, associate professor of nutritional sciences and medicine at the University of Toronto, said: “The word among public health and nutrition experts has long been that ‘a sugar is a sugar.’ These results show that’s not the case.”

Sweeter Than Sugar but Has a Lower Glycemic Index

The glycemic index (GI) (pdf) of glucose is 100, while sucrose averages about 66 and fructose 24. Because of variations in sugar composition, the GI values of different types of honey fall within the range of 35 to 74, with an average of 60.

Interestingly, because of its high level of fructose, honey is 25 percent sweeter than sugar.

Nevertheless, honey has lower GI values and calorie content than refined sugar.

Fructose has a bad reputation that may be unwarranted. Researchers at the University of Toronto published a study in The American Journal of Clinical Nutrition reviewing 169 clinical trials related to fructose. The study concluded that naturally occurring fructose found in fruits and honey isn’t likely to contribute to weight gain and may even positively affect weight loss. Another review study published in Molecules indicated that fructose in honey may slow intestinal absorption, prolong gastric emptying, and reduce food intake. Fructose in honey was found to enhance the liver’s metabolic capacity for glucose.

Honey’s Proven Anti-Diabetic Effects

Using honey as a substitute for refined sugar in one’s diet offers additional benefits.

The blood sugar-lowering and anti-diabetic effects of honey have been proven in both animal and human studies.

In a 2008 study, 55 overweight or obese people were divided into two groups, with one group receiving a daily intake of 70 grams of sucrose and the other receiving 70 grams of honey, both for 30 days. The results show that compared with the pre-intervention period, the group consuming honey experienced a 4.2 percent decrease in fasting blood sugar levels and improved insulin resistance. Honey also resulted in a slight reduction in body weight and body fat percentage by 1.3 percent and 1.1 percent, respectively, alongside a 3 percent decrease in total cholesterol, an 11 percent decrease in triglycerides, and a 3.3 percent increase in good cholesterol.

On the other hand, people who received sucrose experienced different changes. Not only did their fasting blood sugar levels rise by 2.2 percent, but their body weight and body fat percentage also increased.

According to a controlled experiment published in 2017, healthy adults who replaced 25 percent of their dietary carbohydrates with honey for eight consecutive days experienced decreased postprandial (post-meal) insulin and blood sugar levels.
Replacing carbohydrates with honey results in decreased postprandial blood sugar and insulin levels. (The Epoch Times)
Replacing carbohydrates with honey results in decreased postprandial blood sugar and insulin levels. (The Epoch Times)
In another experiment comparing honey and glucose effects on diabetic and healthy people, healthy subjects were given an equal quantity of honey or glucose. The results revealed that honey intake resulted in significantly smaller fluctuations in blood sugar and insulin levels than glucose consumption. After consuming honey for 15 consecutive days, healthy people experienced an average 6 percent decrease in blood sugar levels compared with before honey consumption. Diabetic patients also exhibited noticeably smaller changes in blood sugar levels when consuming honey instead of glucose.
Healthy people experienced smaller fluctuations in blood sugar levels when consuming honey, while diabetic patients exhibited smaller changes in blood sugar levels with honey intake. (The Epoch Times)
Healthy people experienced smaller fluctuations in blood sugar levels when consuming honey, while diabetic patients exhibited smaller changes in blood sugar levels with honey intake. (The Epoch Times)
In a long-term intervention trial conducted in Egypt, 20 participants diagnosed with diabetes drank honey water, prepared by dissolving 50 milliliters (three tablespoons) of honey in water, on an empty stomach twice per day before meals. They consumed an additional 25 milliliters of honey as the sole sweetener in their diets.

During the trial, none of these patients experienced diabetic ketoacidosis or hyperglycemic hyperosmolar state (common symptoms include dry skin or tongue, fruity breath, drowsiness, confusion, difficulty breathing, rapid heartbeat, abdominal pain, and vomiting). Long-term consumption of honey led to weight reduction, controlled blood pressure, and improved cardiovascular conditions in all patients.

A 2018 review study published in Oxidate Medicine and Cellular Longevity revealed that honey has beneficial effects on diabetes, a complex disease. Compared with sugar, consuming honey can reduce weight and lower blood sugar levels in healthy people and patients with diabetes. A systematic review and meta-analysis published in Nutrition Reviews in 2022 also affirmed the positive effects of honey on blood sugar and metabolism.

How Does Honey Control Blood Sugar?

How can honey lower blood sugar levels, despite being a type of sugar?

Mr. Khan said honey contains 30 to 40 different types of rare sugars, which play a role in regulating appetite-related hormones and insulin secretion, ultimately promoting glucose metabolism.

These rare sugars can help mitigate the effects of fructose and glucose, resulting in lower fasting blood sugar levels and improved blood sugar control. Some of them also serve as food for certain good bacteria, which are beneficial for gut health, while others have immune-enhancing properties.

The compounds and flavonoids found in honey possess antioxidant properties that can improve the progression of diabetes caused by oxidative stress and metabolic disorders associated with the condition. Interestingly, the antioxidant capacity of honey is associated with its color, with darker honey having a higher antioxidant value.

The trace elements found in honey, such as zinc and selenium, are also believed to contribute to blood sugar control.

Specific proteins present in honey can activate the body’s innate immune system.

Why Raw Honey and How Much to Consume

Mr. Khan said the data suggest that raw honey has more benefits than honey that has undergone high-temperature processing. Those who consume processed honey also experience benefits, “but they might be more muted or less.”

Raw honey retains more of its beneficial components and bioactivity; the processing of regular honey may alter its composition and bioactivity.

Specifically, honey products undergo a brief heating process during production to reduce moisture and yeast content, but this process also lowers the amount of diastase enzyme in the honey. Diastase plays a role in facilitating the breakdown of starch, thus positively affecting blood sugar and lipid levels.

Heat processing of honey can lead to an increase in a substance known as hydroxymethylfurfural (HMF). When metabolized in the human body, HMF can convert into a genotoxic compound, diminishing the honey’s beneficial effects.

During heat processing, the beneficial bacteria present in honey are also reduced.

Some of the antioxidant compounds in honey are also lost during heat processing, diminishing honey’s ability to promote metabolism and lower fasting blood sugar levels. A study shows that heat processing can reduce the antioxidant capacity of honey by 33.4 percent.

Mr. Khan emphasized that choosing honey from a single floral source ensures that “the composition of honey will be consistent,” making it easier to derive specific benefits.

He said honey sourced from multiple floral origins may come from different regions, suppliers, or even countries, resulting in significant variations in their rare sugar content. Mixing honey from different sources diminishes its overall benefits. The aforementioned review study from 2022 indicated that, within a healthy dietary pattern, honey from a single floral source, particularly acacia and clover honey, can improve blood sugar control and lipid levels.

According to Mr. Khan’s research, optimal benefits were observed when people consumed roughly two tablespoons, equivalent to about 40 grams, of honey per day as a replacement for sugar.

Honey's therapeutic effects can surpass those of some medications.