what is the science behind this fun fact: An apple, potatoe, and onion all taste the same if you eat them with your nose plugged.

But If you plug your nose, you will still be able to taste a little bit and tell distinctions between the foods. I think this started because apple, potatoes, and onions have very close to the same texture and will feel the same to the person eating these. But No, I don't think they will all taste the same when eaten with a plugged nose.

Explanation:

The flavor of the apple neutralize the onions punhency

Explanation:

I do not know about potatoes tho, it could be the same