it depends on the severity of your allergic reaction. for instance someone who may be allergic to bees should not just get stung again to see what happens. someone who may be allergic to peanuts can have a fatal allergic reaction so it would not be wise to test with peanuts again. there are excellent blood tests for food allergies. one sample of blood can be tested for dozens and dozens of different food allergies (from your list). this is a safer way of making an accurate determination.
i had an allergic reaction (likely something i ate) can i just re-try these foods to determine which caused the allergy? . i'm not sure it's something i ate (tongue throat inside of mouth didn't swell or itch) my face turned red and hot and became swollen and i had hives on my neck and chest. the "possible culprit" food list is very short so can i just eat a little of one thing wait a few days and if there's no allergic response try another thing on the list?