Honey is not a free pass for people with diabetes, but it’s not off-limits either. It raises blood sugar much like table sugar does, and it actually contains slightly more carbohydrates and calories per tablespoon. The key difference lies in honey’s moderate glycemic index and its natural plant compounds, which may offer small metabolic advantages when consumed carefully and in limited amounts.
How Honey Compares to Sugar Nutritionally
A tablespoon of honey contains 64 calories, while a tablespoon of white sugar has 45. That gap exists partly because honey is denser: a tablespoon weighs about 28 grams, nearly twice the 16 grams in a tablespoon of sugar. Honey is roughly 82% carbohydrates, with fructose making up about 38% and glucose about 31%, plus around 17% water.
Because honey tastes sweeter than granulated sugar, you can sometimes use less of it in recipes. But the calorie and carbohydrate savings from doing so are minimal. The Mayo Clinic puts it plainly: there’s generally no advantage to substituting honey for sugar in a diabetes eating plan, since both will affect your blood sugar level. If you prefer the taste of honey, the more important step is counting those carbohydrates within your overall meal plan rather than treating honey as a health food.
Glycemic Index: A Modest Advantage
Where honey does pull slightly ahead is its glycemic index, a measure of how quickly a food raises blood sugar. Pure glucose scores 100 on this scale. Table sugar (sucrose) lands around 65. Most honeys fall in the moderate range, and Manuka honey specifically has been tested at 54 to 59 in a randomized study of healthy volunteers. In that study, blood sugar responses were lower for honey samples compared with the glucose standard in most participants.
You might assume that different honey varieties would behave differently based on their sugar composition. Clover, buckwheat, cotton, and tupelo honeys all have slightly different fructose-to-glucose ratios, ranging from 1.03 to 1.54. But a study of U.S. honeys found no statistically significant differences in glycemic index between varieties, and no clear relationship between that sugar ratio and blood sugar impact. In practical terms, the type of honey you choose matters less than how much you eat.
What the Clinical Evidence Shows
A large systematic review and meta-analysis published in Nutrition Reviews examined honey’s effect on markers that matter in diabetes, including fasting blood sugar and HbA1c (the measure of average blood sugar over two to three months). The results were mixed. Honey intake was associated with improvements in fasting glucose, cholesterol, and triglycerides across studies, but its effect on HbA1c was unstable. One analysis suggested a potential reduction of 0.25% in HbA1c, which would be meaningful if confirmed, but this finding didn’t reach statistical significance and shifted depending on which studies were included.
That instability means you can’t reliably count on honey to improve long-term blood sugar control. The evidence isn’t strong enough to recommend honey as a therapeutic tool for diabetes management. What it does suggest is that moderate honey consumption probably doesn’t worsen outcomes compared to other sweeteners, and it may carry some benefits that sugar doesn’t.
Plant Compounds in Honey
Unlike refined sugar, honey contains antioxidant compounds that can neutralize free radicals in the body. This matters for diabetes because chronically elevated blood sugar generates oxidative stress, which damages blood vessels, nerves, and organs over time. Honey’s natural plant compounds work by suppressing the production of reactive oxygen species and binding to metal ions like iron and copper that accelerate cell damage.
Several of these compounds have shown specific effects in animal studies. One reduced blood sugar and lipid damage in diabetic rats while boosting the body’s own antioxidant defenses. Another protected insulin-producing cells in the pancreas by elevating antioxidant enzyme levels. A third improved insulin sensitivity in obese diabetic mice. These are animal studies, not human trials, so they point toward potential mechanisms rather than proven benefits. Still, they help explain why honey, despite being a sugar, behaves somewhat differently in the body than pure sucrose does.
Practical Serving Guidance
For people with diabetes who want to include honey in their diet, the generally recommended amount is 1 to 2 teaspoons per day, depending on individual blood sugar control. That’s a small quantity, roughly 5 to 11 grams of carbohydrate, and it needs to be counted within your total carbohydrate budget for the meal.
A few practical points to keep in mind:
- Track it like any carbohydrate. One teaspoon of honey contains about 6 grams of carbohydrates. If you’re using it in tea or on toast, account for it the same way you would a piece of fruit or a slice of bread.
- Pair it with protein or fat. Eating honey alongside foods that slow digestion, like nuts, yogurt, or cheese, can help blunt the blood sugar spike.
- Monitor your response. Blood sugar reactions to honey vary from person to person. Checking your levels before and after eating honey a few times will tell you more about your own response than any general guideline can.
- Choose raw, unprocessed honey. Heavily processed or blended commercial honeys may have lower concentrations of the beneficial plant compounds. Raw honey retains more of its natural antioxidant content.
Honey is not a substitute for sugar in any meaningful metabolic sense. It’s a slightly more complex sweetener that carries some additional plant compounds and a somewhat lower glycemic response. For people with diabetes, the difference is real but small, and it only matters within the context of portion control and overall carbohydrate management.