Overview
About Persian lime
The Persian lime is the seedless, thick-skinned, deep green lime that accounts for almost every lime sold in a supermarket, as opposed to the small, seedy, more perfumed key lime.
Two things are worth knowing before you log it. First, our generic lime entry grades histamine liberator D, while this cultivar's own row leaves that column unrated, and nothing about seedlessness would change how a lime behaves, so if histamine is your trigger you should treat Persian lime as a liberator until your own log says otherwise. Second, it grades C for salicylates and C for oxalates, both borderline, and it is loaded with furanocoumarins. Those are the compounds behind lime phytophotodermatitis, the delayed blistering rash people call margarita burn, which is a skin contact reaction to juice plus sunlight rather than anything you ate.
Sensitivities
How Persian lime scores
Watch for
What trips people up
- Histamine liberator is unrated (U) on this row while our general lime entry is D and lemon, orange and mandarin are all D. Read that gap as missing data on a cultivar, not as a safer lime.
- Salicylates C and oxalates C, both borderline rather than high. The catch is concentration: juice and especially zest pack several limes into one dish, so a marinade or a round of cocktails is a much bigger dose than the grade implies.
- Phytophotodermatitis is the distinctive lime problem and it is not a food reaction. Juice on skin plus daylight produces a burning red streak or blister 24 to 72 hours later, often followed by brown staining that lasts weeks. Measured furanocoumarin profiles put Persian lime at or above key lime for phototoxic potential, and the peel carries these compounds at 13 to 182 times the concentration of the pulp, so zesting and wedge-cutting are the risky jobs. Rinse hands and board.
- Limes carry the same class of furanocoumarins that drive the grapefruit drug interaction, at lower levels. If you are on a medication that comes with a grapefruit warning and you drink lime juice in quantity, that is a question for your pharmacist rather than an assumption either way.
- Nickel B, glutamates B, FODMAP B and SIBO B. No single alarm, but four borderline columns on a fruit you squeeze over everything adds up faster than the mental category of "just a squeeze of lime" suggests.
Diet fit
Where it fits
Swap ideas
More alternatives
FAQ
Common questions about Persian lime
Is a Persian lime the same as a key lime?
They are different species. Persian lime (Citrus latifolia) is the large seedless lime in every supermarket, while key lime (Citrus aurantiifolia) is smaller, seedy, thinner-skinned and more aromatic. For trigger purposes they behave the same way, and on the one point where they measurably differ, furanocoumarin content, the Persian lime tests as the more phototoxic of the two.
Does lime release histamine?
Citrus is broadly flagged as a histamine liberator in our data: lemon, lime, orange and mandarin all grade D. The Persian lime row itself is unrated on that column, which is a data gap rather than an exoneration. If lemon or lime juice reliably brings on flushing, itching or headache for you, the liberator route is the likeliest explanation, and the fruit being low in histamine itself does not contradict that.
What causes the burning rash on my hands after handling limes?
Phytophotodermatitis. Furanocoumarins in lime juice and peel, mainly bergapten and limettin, bind to skin cells and become reactive under UV light, so the damage happens where juice ran plus where the sun hit. It typically appears 24 to 72 hours later as a red streak, drip pattern or blister, then leaves brown pigment for weeks. It is a phototoxic burn rather than an allergy, so it can happen to anyone with enough juice and enough sun.
Is lime high in salicylates or oxalates?
Persian lime grades C on both, which is the borderline band rather than the high one. That makes it more of a cumulative-dose question than a hard avoid: a wedge in a glass of water is a small exposure, while a zest-heavy dressing or several limes in a marinade is not.
References
Read the background
Ratings reflect the Triggerbites ingredient database and may vary with portion size and preparation.