Per 100 g, Medjool dates have 6.7 g of fibre and 696 mg of potassium, according to USDA FoodData Central. They also have about 66 g of sugar, and that is the part that matters when looking at dates and health issues. Most of this article is about blood sugar and diabetes, because that is where the sugar counts most. A shorter section further down covers teeth, calories and kidney disease. The sugar is natural and unprocessed, but it is still carbohydrate, and people with impaired glucose tolerance have to count it like any other.
If you buy Ajwa by the box, for example from pemborong kurma ajwa, the same rule applies as for any other variety: the portion is what to watch.
This article is general information, not medical advice. If you have diabetes or prediabetes, talk to your doctor or diabetes nurse before changing how many dates you eat, especially if you use insulin or other glucose-lowering medicine.
Why dates are naturally high in sugar
Dates are fruits that go through a ripening and drying process, concentrating their natural sweetness. Unlike refined sugar, the sugar in dates comes with fibre and some minerals. Drying removes water, so what is left is dense: USDA lists 66.5 g of sugar per 100 g for Medjool and 63.4 g for Deglet Noor.
The sugars in dates are mostly glucose and fructose, with sucrose in some varieties. USDA lists Medjool at 33.7 g glucose, 32.0 g fructose and 0.5 g sucrose per 100 g, while Deglet Noor has about 24 g of sucrose alongside roughly 20 g each of glucose and fructose. Natural or not, all of it counts toward the carbohydrate a person with insulin resistance or diabetes has to manage, and a handful of dates adds up quickly.
Both varieties come to about 75 g of carbohydrate per 100 g, most of it sugar. That makes dates a quick source of energy, which is useful in many situations but asks for more care from anyone who has to watch their carbohydrate intake. Knowing the actual numbers helps people decide how dates fit into their own meal plan.
How natural sugar affects blood glucose levels
Carbohydrate from any food is digested and raises blood glucose. In a study from the UAE, portions of five date varieties containing 50 g of carbohydrate did not cause significant blood glucose excursions in ten people with type 2 diabetes who were controlled on lifestyle measures or metformin (Alkaabi et al., 2011). That is a small study, and it cannot tell you how your own blood sugar will respond.
Blood sugar levels rise after consuming carbohydrate-rich foods, and the speed and size of that rise depend on the food’s glycemic index and glycemic load. The same UAE study classed its five varieties as low-GI. Other studies have measured higher values for some varieties; the glycemic index section below gives the full range.
For people with diabetes, the total amount of sugar matters more than its type. The WHO explains that diabetes happens when the pancreas does not make enough insulin or the body cannot use it effectively, and that raised blood sugar is a common effect of uncontrolled diabetes which, over time, damages the nerves and blood vessels. That is why counting dates as part of the day's carbohydrate matters more than whether the sugar is natural.
What else dates contain
Dates do bring more than sugar. Per 100 g, Medjool dates have 696 mg potassium, 54 mg magnesium, 64 mg calcium and 0.9 mg iron, plus a little vitamin B6 (USDA). The NHS says fibre helps digestion and prevents constipation, and that eating plenty of fibre is associated with a lower risk of type 2 diabetes (NHS).
So the case is for moderation rather than automatic avoidance. A 2023 review concluded that eating dates may not worsen blood sugar in type 2 diabetes, while noting that the studies were small and short (Meenakshi and Misra, 2023). People with diabetes can include dates in small, counted portions. Some eat them with nuts or other high-fibre foods, but no study we found has tested whether that pairing changes the blood sugar response to dates.
Recommended serving sizes for people with diabetes
Because kurma ajwa are extremely concentrated, portions matter more than many people assume. There is no official number of dates per day for people with diabetes. The best trial we found, from Bahrain, gave 100 adults with type 2 diabetes either three dates a day for 16 weeks or no dates. HbA1c did not change in either group, and total cholesterol fell slightly in the date group (Alalwan et al., 2020). That is one trial at one portion size, and none of these studies used Ajwa, so agree your own amount with your doctor or dietitian and count it as carbohydrate.
Portion control matters for calories too. A pitted Medjool date weighs about 24 g and has around 66 kcal and 16 g of sugar. A Deglet Noor date weighs about 7 g, with around 20 kcal (USDA). Measuring servings instead of eating straight from the box keeps the count honest. More on this in how many calories are in one date.
Some people spread their dates across the day, or eat them after a meal with protein, fat and fibre. That is a reasonable habit, but it has not been tested with dates, so check your own blood sugar readings to see how it works for you.
Balancing dates with blood sugar–friendly foods
A common tip is to eat dates alongside foods with protein, fibre and fat, on the idea that this slows how quickly the sugar is absorbed. It sounds sensible, but we could not find a study that tested it with dates.
Pairing dates with nuts, seeds or plain yogurt turns a few dates into a snack with protein and fat as well as sugar. Whether that changes your blood sugar is something your own meter will tell you better than any article.
For individuals who prefer using dates in cooking or baking, combining dates with whole grains, oats, or nutrient-dense flours keeps the final dish more balanced. Instead of relying on dates as the only sweetener, cinnamon or vanilla can add flavour so that fewer dates are needed.
Understanding the glycemic index and glycemic load of dates
The glycemic index (GI) measures how quickly the carbohydrate in a food enters the bloodstream. The glycemic load (GL) takes into account both the GI and the amount of carbohydrate in a serving. A 2023 review found GIs of 42.8 to 74.6 across date varieties, and glycemic loads of 8.5 to 24 (Meenakshi and Misra, 2023). The UAE study above measured 46 to 55 for its five varieties. Variety, ripeness and portion all shift the number.
For people with diabetes, the glycemic load gives the clearer picture. Dates are dense in carbohydrate, so the load depends mostly on how many you eat. Lowering it comes down to portion control, not dropping dates entirely: eat fewer at a time, and eat them as part of a meal.
How dates compare to other sweet snacks
When comparing dates to other sweet snacks, dates bring fibre and some minerals along with their sugar, which sweets, pastries and biscuits mostly do not. The NHS does not count sugar found naturally in fruit as free sugars, the kind most people are told to cut down on (NHS). That makes dates a reasonable swap for sweets, even for individuals with health concerns, as long as the portion is counted.
However, dates should not be mistaken for a low-sugar or diabetic-safe food. They still raise blood sugar like any other carbohydrate.
In terms of daily diet balance, dates serve best as an occasional alternative to less nutritious treats. For those who enjoy sweets but must monitor sugar intake, a small, counted portion of dates in place of refined sweets is a sensible swap. It is not a treatment.
Beyond blood sugar: teeth, calories and kidneys
Teeth come first. The NHS says dried fruit is sticky and can raise the risk of tooth decay, so it is better eaten at mealtimes than as a between-meal snack (NHS). Its 5 A Day guidance counts 30 g of dried fruit as one portion (NHS). That is a little over one Medjool date, or about four Deglet Noor.
Calories are the second point. Medjool has 277 kcal per 100 g and Deglet Noor 282 kcal (USDA), so a box left open on the table adds up fast. The NHS notes that too many calories can lead to weight gain, and that being overweight raises the risk of heart disease, some cancers and type 2 diabetes (NHS).
Kidney disease is the third. Dates are high in potassium, at 696 mg per 100 g for Medjool and 656 mg for Deglet Noor (USDA). The NHS explains that people with chronic kidney disease can develop high potassium levels in the blood because their kidneys do not work properly (NHS). If you have kidney disease, ask your kidney team or dietitian how dates fit your diet before eating them regularly.
Practical tips for safe consumption
A few practical adjustments make dates easier to count:
- Choose smaller date varieties, since a 7 g Deglet Noor date carries about 4.5 g of sugar against about 16 g in a 24 g Medjool (USDA).
- Check your blood sugar when you first add dates to your diet, to see how you respond.
- Eat dates as part of a meal rather than grazing on them through the day. They are easier to count, and the NHS advice on teeth points the same way.
- Use dates as a flavour enhancer rather than the main ingredient in recipes.
- Stay active. The NHS lists at least 2.5 hours a week of walking, or another activity that leaves you out of breath, among the lifestyle changes that can help lower blood glucose in type 2 diabetes (NHS).
With counted portions, dates can stay in a diet planned around diabetes.
Conclusion
Dates are whole foods with natural sweetness, fibre and a fair amount of potassium. Their natural sugar content is high, around 63 to 66 g per 100 g. The studies so far, all small, found that moderate amounts did not worsen blood sugar control in type 2 diabetes. They do not show that dates improve it, and eating a lot of them adds sugar and calories quickly. Eat them at mealtimes for your teeth, and check with your kidney team first if you have kidney disease. For diabetes, count dates as carbohydrate, check your own readings, and ask your doctor or diabetes team what portion suits you.
References
- Alkaabi JM et al. Glycemic indices of five varieties of dates in healthy and diabetic subjects. Nutr J. 2011;10:59. PMID 21619670
- Alalwan TA et al. Effects of daily low-dose date consumption on glycemic control, lipid profile, and quality of life in adults with pre- and type 2 diabetes: a randomized controlled trial. Nutrients. 2020;12(1):217. PMID 31952131
- Meenakshi S, Misra A. Effect of dates on blood glucose and other metabolic variables: a narrative review. Diabetes Metab Syndr. 2023;17(2):102705. PMID 36702045
- USDA FoodData Central. Dates, medjool (FDC 168191); Dates, deglet noor (FDC 171726).
- World Health Organization. Diabetes fact sheet.
- NHS. Type 2 diabetes: treatment; How to get more fibre into your diet; Sugar: the facts; 5 A Day: what counts?; Chronic kidney disease: treatment.