Olive Oil vs Butter and Margarine: The Honest Comparison
Should you spread olive oil instead of butter? Cook with it instead of margarine? Mostly yes — but let’s be honest about what each one actually is.
The kitchen has three everyday fats fighting for the same job, and they could hardly be more different in how they’re made.
What each one is
Olive oil is fruit juice — olives, pressed. Butter is churned cream, a natural but saturated animal fat. Margarine is an industrial product: vegetable oils processed and emulsified to behave like butter (the old versions were full of trans fats; modern ones mostly aren’t, but they are still heavily processed).
The health shorthand
Extra virgin olive oil is dominated by monounsaturated fat and carries antioxidant polyphenols — the backbone of the Mediterranean diet. Butter is a saturated fat, fine in moderation. Margarine varies wildly by brand. For everyday cooking and dressing, swapping butter or margarine for good olive oil is one of the simplest upgrades a kitchen can make.
This isn’t a clean sweep. Butter still wins on flavour in baking and on toast — olive oil cake is lovely, but it isn’t buttery shortbread. For high, dry heat olive oil is fine (its smoke point is higher than the myth claims), but for laminated pastry you need a solid fat. The honest position: cook and dress with good olive oil as your default, keep real butter for the jobs only butter can do, and treat margarine as the one you can most easily do without.