This article is general information, not medical advice. If you have diabetes, kidney disease or anaemia, or take regular medicine, talk to your doctor before changing your diet.
The growing trend of purchasing Kurma Nabi online is driven by more than just convenience. Many buyers pick this date because they have heard it is good for their health. "Kurma Nabi" is a name used by sellers, and we could find no published nutrient analysis under that name (see how Kurma Nabi compares with other premium dates). The figures below therefore come from USDA lab data for two common dates, Medjool and Deglet Noor. Some shops now list Kurma Nabi as a functional food, a label for foods sold on their health value. This article checks those health claims against published studies and says which ones hold up.
What is in a date
Dates are mostly sugar: 63 to 66 g per 100 g, out of about 75 g of carbohydrate (USDA). Because they are a whole fruit, they also bring fibre, 6.7 to 8 g per 100 g, and a range of minerals.
Energy and blood sugar
The sugars in dates are glucose, fructose and sucrose, so dates are quick energy. The claim that they are "released slowly" is only partly right. In a UAE study, five date varieties had glycemic index values of about 46 to 55 in healthy volunteers, which counts as low. In ten people with type 2 diabetes, a portion of dates containing 50 g of carbohydrate did not cause a significant rise in blood sugar after eating (Alkaabi 2011). So dates are a reasonable snack for a long afternoon. They are not low in calories, though: 100 g of Medjool is 277 kcal (USDA), and a few dates is a sensible portion.
Minerals and vitamins
Per 100 g, Medjool dates have 696 mg of potassium and 54 mg of magnesium (USDA). Potassium helps control the balance of fluids in the body and helps the heart muscle work properly, and magnesium helps turn food into energy (NHS). Adults need 3,500 mg of potassium a day, so 100 g of dates (about four Medjool) gives about a fifth of that. Dates also have small amounts of copper (0.2 to 0.36 mg), manganese (about 0.3 mg), iron (0.9 to 1 mg) and vitamin B6 (0.17 to 0.25 mg) per 100 g. They are not a multivitamin: USDA lists 0 to 0.4 mg of vitamin C per 100 g, which is almost none.
Dates and digestion
Digestion is where the evidence for dates is strongest, and it comes down to fibre.
Fibre and regularity
The NHS says constipation is often caused by not eating enough fibre, and suggests gradually adding more fibre and drinking plenty of fluids. In a UK trial, 22 healthy adults ate seven dates (about 50 g) a day for three weeks, and their bowel movements and stool frequency went up compared with their starting point (Eid 2015). The same trial found no significant change in the gut bacteria it measured, so the popular "prebiotic" claim was not confirmed there. It did not test immunity, mood or inflammation. More on this in our post on dates and gut health.
Heart and blood
Two minerals in dates are often linked to the heart and blood: potassium and iron. Here is what the evidence says for each.
Potassium and blood pressure
WHO advises adults to eat at least 3,510 mg of potassium and less than 2,000 mg of sodium a day, and names dates among potassium-rich fruits. In a review of 22 randomised trials, more potassium lowered systolic blood pressure by 3.49 mmHg on average. The effect was seen in people with high blood pressure, not in people whose blood pressure was normal. In cohort studies, higher potassium intake was linked with a 24% lower risk of stroke (Aburto 2013). Those studies looked at potassium from all foods, and no trial has shown that eating dates by themselves lowers blood pressure. If you have kidney disease, ask your doctor before eating more potassium-rich food, because people with chronic kidney disease can build up too much potassium in the blood (NHS).
Iron and anaemia
Iron is needed to make red blood cells, which carry oxygen around the body (NHS). Dates have 0.9 to 1 mg of iron per 100 g (USDA). Women aged 19 to 49 need 14.8 mg a day and men need 8.7 mg, so 100 g of dates gives a woman about 6 to 7 percent of her daily iron. That will not prevent or treat anaemia. According to the NHS, iron deficiency anaemia is usually treated with iron tablets for about six months. If you are often tired or short of breath, see a doctor rather than relying on food.
Antioxidants and inflammation
Dates are often sold as an immune booster. We found no human study that tested this, so this section sticks to what has been measured.
Antioxidants
Dates contain phenolic compounds, mainly phenolic acids such as ferulic and coumaric acid, plus a quercetin derivative, and Hallawi dates also contain catechins. In a small pilot study, 10 healthy adults ate 100 g of dates a day for four weeks. Oxidative stress in their blood fell by 33% after Hallawi dates but did not change after Medjool. Fasting blood sugar did not rise and cholesterol did not change (Rock 2009). That is one small study, and it does not show that dates prevent disease.
Inflammation
Claims that dates protect against arthritis, heart disease or cancer by fighting inflammation have no human trials behind them. In a 12-week trial, 79 people with type 2 diabetes ate 60 g of dates or raisins a day, and CRP, a blood marker of inflammation, did not change (Butler 2022).
Buying Kurma Nabi online
Buying online gives a wider choice than most local shops. You can read reviews, compare sellers and prices, and have the dates delivered. Because "Kurma Nabi" is a seller's name, check the label for the actual variety and the packing date, and keep the dates sealed in a cool, dry place once opened.
Key points
Dates are quick energy with a low glycemic index, and they add fibre and potassium to the diet. The best human evidence is for regular bowel movements. Eating more potassium helps blood pressure in people with hypertension, but no trial has shown that dates alone do this. The iron in dates is too little to prevent anaemia, and the claims about immunity, inflammation and detox have no human evidence. Enjoy Kurma Nabi as a good food in sensible portions, not as medicine.
References
- Alkaabi JM et al. Glycemic indices of five varieties of dates in healthy and diabetic subjects. Nutr J. 2011;10:59. PMID 21619670
- Eid N et al. Impact of palm date consumption on microbiota growth and large intestinal health: a randomised, controlled, cross-over, human intervention study. Br J Nutr. 2015;114(8):1226-36. PMID 26428278
- Aburto NJ et al. Effect of increased potassium intake on cardiovascular risk factors and disease: systematic review and meta-analyses. BMJ. 2013;346:f1378. PMID 23558164
- Rock W et al. Effects of date (Phoenix dactylifera L., Medjool or Hallawi variety) consumption by healthy subjects on serum glucose and lipid levels and on serum oxidative status: a pilot study. J Agric Food Chem. 2009;57(17):8010-7. PMID 19681613
- Butler AE et al. Effect of date fruit consumption on the glycemic control of patients with type 2 diabetes: a randomized clinical trial. Nutrients. 2022;14(17):3491. PMID 36079749
- USDA FoodData Central: Dates, medjool (FDC 168191); Dates, deglet noor (FDC 171726)
- WHO: WHO issues new guidance on dietary salt and potassium (2013)
- NHS: Constipation; Vitamins and minerals: others (potassium, magnesium); Iron; Iron deficiency anaemia; Chronic kidney disease: treatment