Benefits of Taking Olive Oil Everyday | Evidence & Daily Use

The strongest evidence sits on cardiovascular outcomes. Olive oil is rich in monounsaturated fats and polyphenols that lower LDL (“bad”) cholesterol while supporting HDL (“good”) cholesterol. A 2022 umbrella review found that higher olive oil intake—around 25 grams per day (roughly two tablespoons)—was associated with lower risk of cardiovascular disease, heart attacks, and strokes. Other analyses report that consuming more than half a tablespoon daily was linked to lower heart-disease-related death and dementia-related death. The mechanism is straightforward: when olive oil replaces saturated fats, the overall fat-quality profile improves.

If you’re looking to pick an everyday olive oil, our tested roundup of everyday olive oils can help find a quality option for daily cooking.

Blood Pressure, Blood Sugar, And Inflammation

Beyond cholesterol, olive oil influences other metabolic markers. Some observational data connect higher consumption with better blood pressure readings, likely because monounsaturated fats support healthy artery function. These effects are most consistent when olive oil is part of a Mediterranean-style eating pattern.

Brain Health, Gut Health, And What The Evidence Shows

Research on brain health is promising but less definitive. Several large observational studies found that people with higher olive oil intake have better cognitive outcomes and lower dementia-related mortality. These are associations, not proven cause and effect—it’s difficult to separate the olive oil effect from the overall healthy lifestyle of users. Similarly, olive oil may support gut microbiome diversity and mild constipation, but these claims have less support than cardiovascular findings. Olive oil is calorie-dense; adding it without reducing other calories can lead to weight gain, offsetting metabolic benefits. Use it as a replacement for less healthy fats.

How Much Olive Oil Per Day Is Optimal?

No single official dose exists, but research consistently lands in a useful range: 1.5 to 2 tablespoons per day (roughly 25 grams), or up to 4 tablespoons in some studies. Consistency over time is key, not an exact number. One to two tablespoons used in salad dressings, roasted vegetables, or cooking is a practical daily target. Stick with extra-virgin olive oil when possible—it retains more beneficial polyphenols than refined common olive oil.

Common Mistakes To Avoid

• Treating olive oil like a medicine shot; drinking it straight provides no additional benefit over using it with food.
• Assuming more is always better; excess calories cause weight gain.
• Adding olive oil on top of your usual diet instead of replacing less healthy fats.
• Assuming all olive oils offer the same benefits; extra-virgin and virgin grades contain more protective compounds than refined versions.

The bottom line: use olive oil regularly in meals as part of an overall healthy eating pattern to improve dietary fat quality and cardiovascular risk profile. You do not need to drink it, buy expensive cold-pressed varieties, or obsess over exact tablespoon counts. A consistent daily habit—even just one to two tablespoons—in place of butter, shortening, or processed vegetable oils delivers the benefits studies show.