Preheat oven to 350 degrees. Spray a 8.5x4.5 loaf pan with nonstick baking spray.
In large bowl whisk together flour, baking powder, baking soda, cinnamon and salt.
In another large bowl combine the egg, yogurt, coconut milk, sugar, vanilla, lime juice and zest. Whisk to combine.
Combine the wet ingredients with the dry ingredients and mix with a spatula until fully incorporated. Fold in mango pieces.
Pour the batter into the loaf pan and top with the coconut flakes. Bake for 35-40 minutes or until toothpick comes out clean. Let it cool for 5-7 minutes before removing from the pan.
Move to a wire rack to finish cooling.