Dates

Dates

Dates come from the date palm, whose scientific name is Phoenix dactylifera. In Hebrew they are called “תמרים”. The date is one of the oldest domesticated crops in the world — evidence of its cultivation in the Middle East dates back more than 6,000 years — and it is one of the Seven Species of the Land of Israel.

The date poses an interesting nutritional puzzle: about two thirds of its weight is sugar, and yet the glycemic response it produces is much lower than that number would predict. That gap is the most interesting thing about dates, and it explains almost everything worth knowing about them.

Nutrition facts

A distinction worth knowing: a large, moist Medjool date (about 24 g) provides about 66 calories. A smaller, drier Deglet Noor date (about 7-8 g) provides only about 20 calories. That is a threefold difference, and it matters when talking about “how many dates.”

The glycemic index — the surprise

The obvious assumption is that a fruit that is 66% sugar will send blood glucose soaring. Actual measurements show otherwise.

Studies that tested the glycemic index of different date varieties found values in the range of about 42-55 — that is, low to moderate, roughly like oats or brown rice, and significantly lower than white bread (~75).

Moreover, trials that included people with type 2 diabetes found that eating a controlled amount of dates did not cause an abnormal rise in blood sugar and did not harm glycemic control over time.

What explains the gap:

• Dietary fiber — 6.7 g per 100 g, a very high amount for a fruit. It slows stomach emptying and sugar absorption.
• Sugar composition — a considerable part of it is fructose, which has a low glycemic index because it is processed in the liver and does not enter the bloodstream directly as glucose.
• Polyphenols — dates are rich in them, and some inhibit carbohydrate-digesting enzymes (alpha-amylase and alpha-glucosidase) — the same mechanism by which certain diabetes drugs work.
• The fruit matrix — the sugar is locked inside an intact cell structure rather than free in solution.

The important caveat: a low glycemic index does not mean “no limit.” The glycemic load depends on quantity, and 100 g of dates is four Medjool dates — 277 calories and 66 g of sugar. The difference between 2 dates and 8 is substantial, and people with diabetes should fit them into their overall carbohydrate planning rather than eating them “on top.”

Dates in late pregnancy — what research actually found

This is one of the few areas where there is dedicated clinical research on a specific food, and it deserves precision.

What was tested: several controlled trials — most of them small, mainly in the Middle East and Iran — looked at women who ate about 6 dates a day during the last four weeks of pregnancy.

What was found fairly consistently: greater cervical dilation on admission to the delivery room, a shorter first stage of labor, and a lower rate of needing artificial induction (oxytocin or prostaglandins). Meta-analyses of these trials found an effect in a consistent direction.

What has not been proven: an effect on hard birth outcomes, on cesarean section rates or on the newborn’s condition. The proposed mechanism — oxytocin-like compounds and potassium content that supports muscle contraction — is a hypothesis, not an established finding.

The caveats: most studies are small, their methodological quality is moderate, and it is hard to blind a trial in which the group knows whether it is eating dates. In addition, 6 Medjool dates are about 400 calories and 96 g of sugar a day — a significant amount, which is especially relevant for women with gestational diabetes, for whom this is not an appropriate recommendation.

The bottom line: this is a practice with a reasonable preliminary research basis and low risk for women with a normal pregnancy — but it requires consulting the midwife or treating physician, and it is not suitable for everyone.

Other benefits

• A notable amount of potassium: 696 mg per 100 g — more than a banana by weight. Potassium balances the effect of sodium on blood pressure and is needed for muscle and nerve function.

• Fiber — 24% of the daily intake in 100 g. Most of it is insoluble, adding stool bulk and gut motility. Two or three dates are a reasonable, well-founded home remedy for constipation.

• Fuel for endurance sports — a real advantage. Dates provide glucose and fructose together, and this combination is absorbed through two different transporters in the gut (SGLT1 and GLUT5) — meaning a higher rate of carbohydrate absorption than from glucose alone. This is exactly the principle commercial gels for runners are built on. Dates are a cheap, natural and effective alternative.

• Copper: 40% of the daily intake in 100 g — a particularly good plant source.

• Polyphenols and antioxidants: dates rank high among dried fruits in polyphenol content, mainly phenolic acids and flavonoids.

• A whole sweetener instead of refined sugar: unlike white sugar, dates bring along fiber, minerals and polyphenols. In desserts and energy balls they replace sugar and also provide texture and binding.

Downsides

• Sugar and calorie density — the main downside. 277 calories and 66 g of sugar per 100 g. Dates are small, moist and sweet, and have almost no filling volume — four Medjool dates are 264 calories, and they go down far more easily than 264 calories of almost any fresh fruit. This is the only downside that is truly relevant to most people, and it is entirely a matter of quantity.

• Diabetes: despite the relatively low glycemic index, the glycemic load of a large amount is significant. Fit them into your overall carbohydrate planning, and don’t treat them as a “free fruit.”

• Silan is not a date. Silan (date syrup) is made by extracting the sugar from dates in water and concentrating it — the result is a concentrated sugar syrup with almost no fiber, with a much higher glycemic index than the whole fruit. Exactly the same logic as the difference between fruit and juice. Silan is a sweetener, not a health food.

• Stickiness and dental health: dates are especially sticky and cling to tooth surfaces and grooves for a long time — a particularly problematic combination of sugar and prolonged contact. Rinsing your mouth with water after eating is recommended.

• FODMAPs and fructose: high content of fructose and fructans. People with irritable bowel syndrome may experience bloating and gas; a serving of 1-2 dates is usually better tolerated.

• Sulfites in dried fruit: dates are usually not sulfured (unlike apricots or golden raisins), but check the label — people sensitive to sulfites should make sure.

• Potassium — the reverse consideration in kidney disease: what is an advantage for most people becomes a limitation for patients with chronic kidney failure, who need to restrict potassium. Dates are a high-potassium food, so consult a dietitian.

• Stuffed and coated dates: dates filled with marzipan, coated in chocolate or rolled in sugar are a different category — added sugar on top of natural sugar.

Comparison: dates vs. other dried fruits (per 100 g)

Practical use

• How many a day: 2-3 Medjool dates (about 130-200 calories) are a reasonable serving for most people. With Deglet Noor you can have 4-6 for the same calorie cost.
• Pair with protein or fat — a date with tahini, peanut butter, walnuts or pumpkin seeds. This further moderates the glycemic response and significantly increases satiety.
• Before endurance training — 2-3 dates about 30-45 minutes before, or during a long run as a substitute for a gel.
• As a sweetener in recipes — soak in hot water for 10 minutes and blend into a paste. It replaces sugar in cakes, energy balls and granola.
• Prefer the fruit over silan — the fiber and minerals stay in the fruit, not in the syrup.
• Rinse your mouth after eating — because of the stickiness.
• For constipation — 2-3 dates with a glass of water, not without it.
• Storage: moist Medjool dates keep for months in the fridge and over a year in the freezer. White sugar crystals on the surface of a date are natural crystallization, not mold.

Summary

Dates are an excellent example of how sugar percentage alone does not tell the story. Despite being 66% sugar, their glycemic index is low to moderate (42-55) — thanks to 6.7 g of fiber, fructose content and polyphenols that inhibit carbohydrate-digesting enzymes — and trials found them reasonably well tolerated even by people with type 2 diabetes in controlled amounts. Alongside that they provide plenty of potassium (more than a banana by weight), copper and fiber.

The only downside that really matters is quantity: 277 calories per 100 g in a small, sweet, unfilling fruit — four dates go by without you noticing. Two more practical distinctions: silan is not a date but a concentrated, fiber-free sugar syrup; and as for the practice of 6 dates in late pregnancy — there is a reasonable preliminary research basis for shortening the first stage of labor and reducing the need for induction, but the studies are small and the amount is significant in calories, so it is a decision to make with your midwife, not on your own.