Light Olive Oil (Best Option)
1:1 (e.g., 1/2 cup light olive oil per 1/2 cup avocado oil)Light olive oil has a fatty acid profile similar to avocado oil, rich in monounsaturated fats, which helps retain moisture and tenderness in baked goods like zucchini bread. Its mild flavor ensures the zucchini and spices remain the stars of the recipe.
When substituting, use the same volume as avocado oil. Avoid extra virgin olive oil as its stronger flavor can dominate the bread's subtle taste. Store light olive oil properly to prevent rancidity.
The final bread will have a slightly different but still mild flavor profile and similar moist crumb, making it a near-perfect substitute.