All questions

Has anyone heard of raw rhubarb making one itch?

A friend gave me some rhubarb from his garden, and I began to cut it, but then started itching bad all over my body and had breakouts. Strange thing is though, I can eat rhubarb cooked, so I'm not allergic to it.

asked by katiebakes over 7 years ago

Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)

6 answers 5515 views
sdebrango
sdebrango

Suzanne is a trusted source on General Cooking.

added over 7 years ago

Its a common allergic reaction to touching rhubarb. I am not sure why you are not allergic to the cooked plant but your syptoms are classic for an allergic reaction. Have you ever touched raw rhubarb before?

Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)

inpatskitchen
inpatskitchen

Pat is a trusted home cook.

added over 7 years ago

I've read that the leaves are toxic...years ago when my kids were tots there was rhubarb growing behind the garage..we had to fence it off to keep them out.

Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)

katiebakes
added over 7 years ago

sdebrango,
I had never touched rhubarb before until that experience, but had eaten it cooked prior to that.

Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)

jeinde
added over 7 years ago


Rhubarb leaves contain high levels of oxalic acid, so they should not be consumed. The stalks are fine and are usually cooked (with sugar as they are so sour otherwise). There are a lot of reports of people having allergic reactions to the raw product.

Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)

Panfusine
added over 7 years ago

Rhubarb & other greens such as Taro leaves contain a large amount of oxalic acid which is store in the cells as Calcium oxalate crystals. Its these crystals which literally embed themselves on the nerve endings giving rise to the itch or irritation when the cell membrane of the rhubarb is punctured upon cutting it. The crystals dissolve in acid which translates to cooking the produce in an acidified water to leach the oxalate out of the cells.

Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)

latoscana
added over 7 years ago

The oxalic acid is in the leaves, not the stalks, so you shouldn't have a problem eating the stalks. If you have a reaction a serious reaction, treat it as a poisoning. Call poison control at 800-222-2222: http://www.nlm.nih.gov....

Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)