To make this Easy Carrot Apple Zucchini Bread gluten-free. Simply swap out the all-purpose flour. For a gluten-free flour blend. That includes xanthan gum. Which helps mimic the texture of gluten. You may also want to slightly increase the baking powder. To give the bread a better rise. The rest of the ingredients are naturally gluten-free. So you can enjoy this moist. And flavorful bread. Without any worry. Just be sure to double-check. That your baking powder is certified gluten-free. As some brands may contain traces of gluten.