Serious Eats - seriouseats.com

I'm not allergic to any food that I know of .... thank God!!

I love funky blue cheeses, however I'm really allergic to molds. So, I take a benadryl before hand and have a small amount on a salad or bruchetta. Thankfully it's so flavorful that a bit goes a long ways. If I've over indulged my mouth really burns and it triggers my asthma. Just a few times year is the wiser thing to do... or perhaps not at all, but gee I just love blue cheese.

@listner, your reaction sounds like Oral Allergy Syndrome http://allergies.about.com/od/foodallergies/a/oas.htm

I have issues with most fruits and nuts due to OAS, but I eat pretty much everything except for melons and plums anyway.

Shellfish but I still eat it since it has no ill effect on me. The oddest allergy I heard of is to poultry.

it may not actually be an allergy. very fresh pineapple (ie: not canned) contains an enzyme called bromelain which digests proteins and the prickly feeling your mouth could actually be the enzyme digesting the proteins that make up the primary epithelial layer in your mouth and causing a tingling/numb/burning sensation. The fresher the pineapple and the more of it you eat the worse the feeling is.

avacado....it's so sad b/c i loooove it. i spent many years denying it, but there's no getting around it. bums me out greatly. :(

I have the same issue with fresh pineapple... love the stuff, but i can't eat it really fresh.. so I've taken to buying one, cutting it up and letting it sit for at least a day, then I can eat it a lot better. But I won't give it up completely.

Shrimp... I adore it and used to eat it all the time but now it makes me violently ill. sigh.

@takat you can develop an allergy to anything at any time in your life. I had no food allergies as a kid and now I am deathly allergic, (I mean that seriously - I carry an epi-pen), to avocados. Sadly, it's not terribly uncommon to develop food allergies as an adult.

I'm allergic to avocados too! It's hugely inconvenient--I don't really remember seeing them that much as a kid, but now it seems like it's the default ingredient to make an otherwise average and unassuming dish seem "upscale." I think I last ate it with a tuna tartare at a very lovely dinner at a private chateau in France where I didn't want to make waves. I'm lactose intolerant, too, but that's easy enough to manage with lactase pills.

I have to be careful about seafood. Too much, too often causes major hives. I'm especially aware if I'm vacationing at the beach, because seafoods happen to be my favorite foods. Always have benadryl with me and take it before splurging.
I'm also allergic to the iodine in x-rays, mri's, scans, etc.; in fact that's where my allergic reaction started and has now carried over into shellfish consumption. Bummer!

@littlestcapy - me too on the apples! Ate an apple a day for years and years and one day my face and hands just blew up after eating one (not the most attractive thing to happen at work). I was soo bummed and still get a little melancholy when I walk by the fruit stands and know I can not have a Granny Smith anymore.

I had a doctor tell me that people often crave what they are allergic to. From the posts here, seems not far off.

Fresh pineapple does something different to me. The first bite or two are wonderfully sweet and pinappley, but if I eat any more, it tastes horribly bitter with oniony undertones. My brother has the same experience (he only learned this when he lived in Hawaii). Maybe it's some reaction to the enzymes.