S.H.
All I know is, Mango, if eaten fresh, can irritate the mouth area in some people and cause itching and/or irritation pain.
And/or rash around the mouth.
Ihttp://www.allergy-details.com/allergy-c/mango-allergy/
I grew up on Mango as a kid, as most people in Hawaii do. We just pick it off of trees here.
Always, rinse the mouth thoroughly, after eating. Some people are affected, some are not. In varying degrees.
My Dad... was quite allergic to it. Me, not as much. Some, can't even eat mango at all.
Mango- is NOT a "citrus."
It is related, Botanically, to the Cashew family.
It is also botanically related to Anacardiaceae, which includes poison ivy (Toxicodendron radicans ), sumac (for example, Rhus integrifolia, or Lemonade Berry), and pistachios (Pistacia vera ).