Preheat your oven to 350°F (175°C) and prepare a 9x5-inch loaf pan by greasing it or lining it with parchment paper.

In a small bowl, whisk together the all-purpose flour, baking powder, baking soda, salt, and cinnamon. Set aside.

In a large mixing bowl, combine the room temperature eggs, avocado oil, granulated sugar, and vanilla extract. Mix until smooth.

Gradually add the dry ingredients into the wet mixture, folding gently with a spatula.

Fold in the shredded zucchini, ensuring not to squeeze out its moisture.

Transfer the batter into the prepared loaf pan and bake for 50-60 minutes, or until a toothpick comes out clean.

Let the bread cool in the pan for about 10 minutes, then transfer it to a wire rack to cool completely.