Durian Calories and Nutrition: The Actual Numbers

Durian gets called fattening, sugary and dangerous in roughly equal measure. Two of those are overstated and one is understated. Here are the numbers.

Durian nutrition per 100g of flesh

These are the United States Department of Agriculture’s figures for “Durian, raw or frozen”, entry 168192 in FoodData Central. They describe durian in general, not any one clone. Sugar content in particular moves with variety and ripeness, so treat the carbohydrate line as a reliable average rather than a reading of the fruit in front of you.

For scale, 100g of durian flesh is roughly two to three seeds’ worth, depending on the variety and how generous the flesh is. A whole 1kg fruit yields only about 250g to 350g of edible flesh, so the calories in a fruit are not the calories in a kilogram of fruit.

The fat is real, and it is unusual

Most fruit contains almost no fat. Durian contains around 5g per 100g, which is why the texture is custard-like rather than juicy, and why it is more filling than its size suggests. That fat is the reason durian sits in the stomach the way an avocado does and a mango does not.

This is the honest part of the “durian is fattening” claim. At 147 kcal per 100g it is not extreme, but it is easy to eat 300g without noticing, and 300g is around 440 kcal.

The glycaemic index is lower than almost everyone assumes

This is the part that gets repeated wrongly. Durian’s glycaemic index has been measured at 49 plus or minus 5, which falls in the low band. That is lower than watermelon (about 55), papaya (about 58) and pineapple (about 82).

So durian does not spike blood sugar faster than other tropical fruit. It is sweeter tasting and more calorie dense, which is a different problem.

For diabetes: the caution is portion size and total carbohydrate, not the glycaemic index. Two to three seeds carry roughly 20g to 30g of carbohydrate, which is comparable to a bowl of white rice or half a can of soft drink. Durian can fit into a meal plan, but it has to be counted rather than treated as a free fruit. Talk to your doctor or dietitian about your own numbers rather than relying on a durian website.

The genuine risk is potassium, and it is specific

Durian carries 436mg of potassium per 100g, more than a banana at 358mg. Both are USDA figures.

For anyone with working kidneys this is not a concern. Kidneys excrete surplus potassium without difficulty, and high-potassium food is generally good for blood pressure.

For people with kidney disease it is a real danger, not a caution. Impaired kidneys cannot clear the load, potassium accumulates in the blood, and severe hyperkalaemia disturbs heart rhythm. There are documented case reports: a 2009 case from a Johor Bahru hospital described a 48-year-old woman with kidney damage who suffered a cardiac event from high blood potassium after eating durian and missing a dialysis session, and a 2021 case report documented life-threatening hyperkalaemia in an elderly patient with acute kidney injury after a large quantity of durian.

If you are on dialysis or on a potassium-restricted diet, durian is not a moderation question. Ask your nephrologist or renal dietitian.

What about “heatiness”?

In Traditional Chinese Medicine durian is classified as heaty, and the folk advice is to drink salt water from the husk afterwards.

The biomedical evidence is thin, and thinner than it is usually reported. The study everyone points to is Chua, Nurhaslina and Gan, Hyperthermic effects of Durio zibethinus and its interaction with paracetamol, published in Methods and Findings in Experimental and Clinical Pharmacology in 2008. It gave durian to Sprague-Dawley rats and measured their temperature at one, two and five hours afterwards.

The part almost everyone leaves out is the result. The authors reported that body temperature in the durian group was not significantly elevated against the control. So the study is not evidence that durian heats you up. It is a study that looked and did not find a reliable effect.

You will often see a precise temperature rise quoted from this paper. We have left the number out. It does not appear in the published abstract, and we would rather give you the finding the authors actually reported than a figure we cannot check.

The wider symptom cluster attributed to heatiness, sore throats and rashes and the rest, has no established biomedical mechanism at all. Heatiness remains a widely held belief and a useful cultural shorthand for “this is rich food, do not eat a kilogram of it”.

The short version

Durian is calorie dense, unusually fatty for a fruit, low on the glycaemic index, and very high in potassium. Healthy adults can eat it freely in sensible portions. People with kidney disease should treat it as genuinely off limits without medical advice. People with diabetes should count it as carbohydrate rather than as fruit.

For how much of it is sensible and who should be careful, see how much durian is too much. For the pairings people warn about, most of which do not hold up, see what not to eat with durian. On the one warning with a real published mechanism behind it, see durian and alcohol, where the evidence is more interesting and much weaker than the warnings suggest.

For what to buy and how to pick it, see our guide to choosing durian and the variety reference.