Preheat your oven to 350°F (175°C). Grease a 9x5 inch loaf pan.
In a large bowl, combine the flour, baking soda, baking powder, salt, and cinnamon.
In another bowl, beat the eggs, oil, vanilla, and sugar together. Add the grated zucchini and mix well.
Stir the dry ingredients into the zucchini mixture until just blended. Pour the batter into the prepared pan.
Bake for 60 minutes, or until a toothpick inserted into the center comes out clean. Cool in the pan on a rack for 20 minutes. Remove bread from pan, and completely cool.
Notes:
This zucchini bread is perfect for breakfast or as a snack.