High-Fructose Foods: An Honest List (and the Dose Trick Most Lists Miss)
Fructose is highest in honey, agave, high-fructose corn syrup, some fruits, and fruit juice. But the honest catch is that fructose malabsorption is dose-dependent, and foods with roughly equal glucose and fructose are often tolerated better than the amount alone suggests, because glucose helps carry fructose across the gut. This is a common, non-dangerous intolerance, and it is not the rare, serious hereditary condition of a similar name.
First, a safety distinction that matters
There are two very different things with confusingly similar names, and it is worth being clear before any food list.
- Fructose malabsorption (also called dietary fructose intolerance) is common and not dangerous. The gut does not absorb larger amounts of fructose well, so it ferments in the bowel and causes bloating, wind, and discomfort. It is dose-dependent, and this page is about it.
- Hereditary fructose intolerance (HFI) is a rare, inherited condition caused by an enzyme gene (ALDOB). It appears in infancy when fructose is introduced, and continued exposure can be serious, including seizures and liver or kidney damage (MedlinePlus). HFI needs strict, lifelong fructose avoidance under a doctor. It is a medical diagnosis, not a tolerance level to experiment with. If HFI is suspected, that is a clinician's job, not a food list's.
The rest of this page is about the common, dose-dependent kind.
How to read this list (before you cut anything)
Three honest caveats first, because they will stop you cutting out food you never needed to:
- It is dose-dependent. In one set of studies, essentially everyone absorbed 15 g of fructose, about 90% absorbed 25 g, but only 20 to 30% fully absorbed 50 g (Fedewa & Rao). So the amount in a serving, and across a day, matters more than whether a food "has fructose."
- Glucose helps you absorb fructose. Foods with roughly balanced glucose and fructose are often better tolerated than foods with fructose in excess, because glucose co-transports fructose across the gut wall (Fedewa & Rao). This is why a food's glucose-to-fructose balance matters as much as its total fructose.
- The ratings shift, so check a current source. Monash University maintains the most widely used FODMAP database and updates its food ratings over time, so a rating you saw a while ago may have changed; a current source is worth checking (Monash University FODMAP).
So treat any list, including this one, as a map of likely suspects, not a rulebook.
The list
Grouped by fructose load and by the glucose-to-fructose balance that decides tolerance. Amounts vary by ripeness, variety, and portion.
High in excess fructose (fructose well above glucose)
| Food / category | Why |
|---|---|
| Honey | Fructose clearly exceeds glucose |
| Agave syrup / nectar | High excess fructose |
| High-fructose corn syrup | Added to many soft drinks and processed foods |
| Apple and pear (and their juices) | More fructose than glucose |
| Mango, watermelon, cherries | Higher excess fructose |
| Fruit juice and dried fruit generally | Concentrated fructose |
Often better tolerated (balanced glucose and fructose, or lower dose)
| Food / category | Why |
|---|---|
| Berries (strawberries, blueberries) in normal portions | Lower fructose load |
| Citrus (orange), kiwi, banana | More balanced sugars, usually tolerated in normal serves |
| Table sugar (sucrose) in small amounts | Balanced glucose and fructose |
| Most vegetables | Generally low fructose |
Generally low or fructose-free
Meat, fish, eggs, plain dairy, most vegetables, grains, and unsweetened foods carry little or no fructose. "Unsweetened and not fruit-juice-based" is the through-line more than any single food.
Why the same food affects you differently day to day
If a fruit is fine one day and a problem the next, that is expected with a dose-dependent intolerance. It is often the total fructose across a meal or a day, and what you ate it with, that decides whether you react, rather than one food alone. Eating a high-fructose food with a source of glucose can shift the balance. This is the same cumulative-load pattern we describe for other intolerances in the histamine intolerance guide. It is the main reason single-food blame so often misleads.
Use the list as a hypothesis, not a sentence
The practical path: use this list to form suspicions, then confirm your own tolerance over time, ideally with a dietitian, since fructose malabsorption is best worked out by structured testing and gradual reintroduction rather than a blanket cut. A low-FODMAP approach with professional support is the usual framework, and the aim is the widest diet you can comfortably hold, not the narrowest.
See a clinician for persistent or severe symptoms, and treat suspected hereditary fructose intolerance as a medical issue. Ongoing gut symptoms deserve a proper assessment, and HFI in particular is diagnosed and managed by a doctor, never self-managed. This list is for information only. GIMETRY is not a medical device and does not provide medical advice, diagnosis, or treatment.
If you want to see whether high-fructose foods actually line up with how you feel, GIMETRY lets you log meals and symptoms and compares them across time windows to surface the foods worth testing, accounting for the dose-related pattern a single-day diary misses. It surfaces suspects to discuss with a clinician; it does not diagnose.
Frequently asked questions
What foods are highest in fructose? Honey, agave, high-fructose corn syrup, apples and pears (and their juices), mango, watermelon, cherries, and dried fruit are among the highest in excess fructose (Fedewa & Rao).
Why can I eat some fruit but not others? Because tolerance depends on the glucose-to-fructose balance, not just total fructose. Foods with roughly equal glucose and fructose are often better tolerated, since glucose helps carry fructose across the gut (Fedewa & Rao).
Is fructose malabsorption the same as hereditary fructose intolerance? No, and the difference is important. Fructose malabsorption is common, dose-dependent, and not dangerous. Hereditary fructose intolerance is a rare, inherited condition that can be serious and needs strict avoidance under a doctor (MedlinePlus).
How much fructose can I have? It varies by person, and it is dose-dependent: most people absorb small amounts easily and struggle with large ones (Fedewa & Rao). The practical approach is to find your own level with structured testing, ideally with a dietitian, rather than cutting all fruit.
Are food ratings for fructose reliable? Use a current source. Monash University maintains the most widely used FODMAP ratings and updates them over time, so older figures may have shifted (Monash University FODMAP).
Sources
- Fedewa A, Rao SSC, Dietary fructose intolerance, fructan intolerance and FODMAPs (review), Curr Gastroenterol Rep / PMC3934501 (dose-dependent absorption; glucose co-transport; prevalence in suspected IBS): https://pmc.ncbi.nlm.nih.gov/articles/PMC3934501/
- MedlinePlus / NIH, Hereditary fructose intolerance (ALDOB gene, infancy onset, serious course, strict avoidance under medical care): https://medlineplus.gov/genetics/condition/hereditary-fructose-intolerance/
- Monash University FODMAP program (the most widely used FODMAP food database; ratings updated over time): https://www.monashfodmap.com/
How this was written. This article was drafted with AI assistance and reviewed by the GIMETRY editorial team for accuracy against the cited sources. Last reviewed: 2026-07-03. GIMETRY is not a medical device and does not provide medical advice, diagnosis, or treatment. It surfaces possible patterns to discuss with a qualified clinician; it does not identify the cause of your symptoms. Always consult a doctor or registered dietitian, especially before changing your diet.