Preheat oven to 375°F (190°C). Lightly grease a 9 x 5-inch (2 L) loaf pan.
In large bowl, combine coconut, whole wheat and all-purpose flours, almonds, sugar, flax seeds, oats, protein powder and baking soda. In another bowl, whisk together yogourt, milk, bananas and eggs. Pour over dry ingredients; stir just until combined. Pour mixture into prepared pan.
Bake for 45 to 55 minutes or until a tester inserted in centre comes out clean.