Preheat your oven to 350°F (175°C) and line a muffin tin with paper liners.
In a large bowl, mix together the grated carrots, grated apple, and crushed pineapple.
Add the shredded coconut and chopped nuts to the mixture and stir well.
In another bowl, whisk together the flour, baking powder, baking soda, cinnamon, and brown sugar.
In a separate bowl, beat the eggs, then add the vegetable oil and vanilla extract.
Combine the wet ingredients with the dry ingredients until just mixed.
Fold in the carrot and fruit mixture gently until combined.
Spoon the batter into the prepared muffin tins, filling each cup about two-thirds full.
Bake in the preheated oven for 20-25 minutes or until a toothpick comes out clean.
Allow the muffins to cool in the pan for 5 minutes before transferring them to a wire rack.