The high sugar content in mango can be too much for cats and can make them unwell.
Additionally, cats cannot taste sweet flavors, so they are not naturally attracted to mango.
Suggestions
Mango should be given to cats only occasionally and in small amounts as a treat.
Ensure the mango is fresh and peeled, and avoid making it a regular part of their diet.
Note: even if labeled as safe, any food can potentially cause allergies. When introducing a new food, please feed a small amount and observe your cat for any allergic reactions.