Overview
About Boysenberry
The boysenberry is a four way hybrid of blackberry, raspberry, loganberry and dewberry, bred by Rudolph Boysen in 1920s California and made famous by Walter Knott.
It is graded high FODMAP, driven by polyols with a moderate excess fructose load behind them. The useful surprise is salicylates: boysenberry is graded only mildly elevated, noticeably lower than the blackberry and raspberry it descends from, so it can be a workable berry for someone eliminating salicylates who has already had to drop the rest of the bramble fruit. It is also graded low in histamine and is not a histamine liberator. The practical catch is that the berry is too fragile to ship fresh, so almost every real world exposure is jam, syrup, pie filling or canned fruit, where added sugar rides in with the berry.
Sensitivities
How Boysenberry scores
Watch for
What trips people up
- High in polyols, which is what pushes boysenberry into the high FODMAP band. A small handful is a very different exposure from a serving of pie filling
- Moderate excess fructose stacked on top of the polyols, so the two FODMAP groups compound in a single portion
- Moderate fit for low fermentation SIBO protocols, worth a cautious trial rather than a free pass
- Only mildly elevated on salicylates and oxalate, which sets it apart from blackberry and raspberry. If bramble berries usually trigger you, this one is worth retesting on its own
- Almost always sold as jam, syrup, canned fruit or frozen because the fruit is too soft to travel. The sweetened preserve is the exposure most people are actually logging, so record the product rather than the berry
Diet fit
Where it fits
Swap ideas
More alternatives
FAQ
Common questions about Boysenberry
Are boysenberries low FODMAP?
No. Boysenberries are graded high FODMAP because of their polyol content, with moderate excess fructose adding to it. If you tolerate a small serving of blackberries you may find a similar small portion of boysenberry workable, but treat a spoonful of boysenberry jam as a concentrated dose rather than a taste.
Are boysenberries high in salicylates?
They are graded only mildly elevated, which is lower than blackberry and raspberry despite boysenberry being a cross of both. That makes it one of the more interesting berries to reintroduce on a salicylate elimination, since it may sit under your threshold when its parent fruits do not. The FODMAP load is the part that still needs portion control.
Is boysenberry jam a trigger?
Often more than the fresh fruit is, for two reasons. Jam concentrates the berry so the polyol and fructose load per spoonful goes up, and the added sugar comes along with it. Because boysenberries are too fragile to sell fresh in most markets, jam and canned fruit are the default form, so log the product you actually ate rather than logging it as plain berries.
What is a boysenberry a cross of?
It is a hybrid of blackberry, European raspberry, loganberry and American dewberry, developed by Rudolph Boysen in California in the early 1920s. Walter Knott rescued the last surviving vines and grew them at his roadside stand, which became Knott’s Berry Farm, and named the fruit after Boysen.
References
Read the background
Ratings reflect the Triggerbites ingredient database and may vary with portion size and preparation.