How to Drink Olive Oil on an Empty Stomach
Last Updated: October 29, 2026
Quick Summary
Drinking olive oil on an empty stomach means taking a small serving of extra-virgin olive oil first thing in the morning, before food or coffee. Research on the empty-stomach timing itself is thin, but olive oil is a better fat choice than butter or lard, and a morning spoonful is a reliable way to get it into your day.
A common daily amount is one to two tablespoons, roughly 15 to 30 milliliters.
Start week one with one teaspoon taken with water to test tolerance.
One tablespoon has about 120 calories, so count it against your daily fat budget.
Mild reactions like loose stools usually settle within a week as your gut adapts.
Store oil in a cool, dark cabinet and use it within a few months of opening.
Table of Contents
Why People Drink Olive Oil on an Empty Stomach
Drinking olive oil on an empty stomach means swallowing a small serving of extra-virgin olive oil first thing in the morning, before any food or coffee. The practice has roots in Mediterranean tradition, where a spoonful of fresh oil was treated as a daily habit rather than a remedy.
At Nona's EVOO, we hear this question constantly from customers building a morning routine around fresh-pressed Greek oil. Most want the same thing: a simple habit that fits a heart-healthy diet without a lot of fuss. The practice comes down to a few possible upsides and a few real caveats.
Here is the honest version before you pour your first spoonful.
What the Research Actually Shows
Direct evidence for the empty-stomach timing itself is thin. No large clinical trial has shown that taking olive oil before food beats taking it with a meal. What research does support is the oil itself.
The American Heart Association's dietary guidance consistently points to olive oil as a better fat choice than butter or lard. The Mediterranean diet, built around olive oil, is one of the most studied eating patterns in the world.
So treat the timing as a habit question, not a medical one. A spoonful in the morning is a reliable way to actually get olive oil into your day. That consistency is where most of the real value sits.
7 Potential Benefits of Drinking Olive Oil in the Morning
The points below are general reasons people choose this habit. They are not guarantees.
Heart Health and Cholesterol Levels
Olive oil's main heart benefit comes from what it replaces. Swap butter or processed fats for olive oil, and you shift your fat intake toward monounsaturated fat.
Digestion, Gut Health, and Blood Sugar
On blood sugar, olive oil does not lower glucose directly. But pairing fat with carbs at a meal can soften the glucose spike. Some research links olive oil within a Mediterranean diet to better glucose regulation and lower type 2 diabetes risk.
Olive Oil on an Empty Stomach Side Effects to Know
Most people tolerate a spoonful of olive oil without trouble, though a few reactions are worth knowing about.
Common, Mild Reactions
Loose stools or urgency. Fat can speed things along, especially at first. This usually settles within a week as your gut adapts.
Nausea. A large amount on an empty stomach can turn your stomach. A teaspoon rather than a tablespoon is the fix for most people.
Reflux or heartburn. Fat can relax the valve at the top of the stomach. If you are prone to reflux, take the oil with food instead of on an empty stomach.
Calorie creep. Olive oil is calorie-dense. A heavy pour adds up fast, see the dosage section above for the math.
Who Should Be Cautious
Some people should not make this a daily habit without checking first:
Gallstones or a history of pancreatitis. Fat triggers gallbladder contraction, and that can cause pain for people with existing issues.
Irritable bowel syndrome or other fat-sensitive gut conditions. A morning fat load can trigger symptoms in people who already react to fatty meals.
Anyone scheduled for gallbladder or abdominal surgery. Follow your care team's instructions on fat intake rather than adding a new habit.
People managing their weight on a clinician-set calorie target. The spoonful counts against that target.
Medication Considerations
Olive oil is a food. If you take medication, a few practical points apply:
Medications taken on an empty stomach. If a medication is meant to be taken on an empty stomach, do not add oil to that routine without asking your pharmacist.
Diabetes medication. If you time insulin or other glucose-lowering medication around meals, tell your clinician about a new morning fat habit so your dosing stays accurate.
Watch Out If you have gallstones or a history of pancreatitis, talk to your doctor before making this a daily habit. Fat triggers gallbladder contraction, and that can cause pain for people with existing issues.
Allergy and Sensitivity Signs
A true olive allergy is uncommon. Watch for itching or swelling in the mouth or throat, hives, or digestive upset that appears consistently after the oil. Stop and seek medical advice if those occur.
When to Stop and Call a Clinician
Stop the habit and check in with a clinician if you experience:
Persistent diarrhea or cramping that does not settle within a week
Pain in the upper right abdomen, especially after fatty food
Heartburn that becomes frequent or wakes you at night
Any sign of an allergic reaction
Start with a small amount and see how your body responds.
How Much Olive Oil Per Day Is Safe?
A common daily amount people use is one to two tablespoons, roughly 15 to 30 milliliters. Check your own needs with a clinician or dietitian.
How much olive oil per day works best depends on the rest of your plate. If you already cook with oil and dress salads with it, the morning spoonful is part of your total, not extra on top. A common pattern is to count the spoonful against your day's added-fat budget rather than treating it as a free add-on.
A simple way to think about it:
Daily Amount | Roughly | Calories | Best For |
1 teaspoon | 5 ml | About 40 calories | Starting out, sensitive stomachs |
1 tablespoon | 15 ml | About 120 calories | Most people's morning ritual |
2 tablespoons | 30 ml | About 240 calories | People using oil as a main fat source |
How to Start Without Overdoing It
A practical ramp-up looks like this:
Week one: one teaspoon in the morning, taken with water. This is enough to test tolerance without turning your stomach.
Week two: move to one tablespoon if the first week sat well. Most people settle here.
Beyond: only increase to two tablespoons if olive oil is replacing other fats in your diet, not stacking on top of them.
Split dosing is an option. Some people prefer a teaspoon in the morning and the rest drizzled over lunch or dinner. There is no evidence that one large dose beats several small ones, and smaller doses are gentler on the stomach.
Pro Tip Measure with an actual spoon the first few weeks. Free-pouring from the bottle is the most common reason people overshoot their intended serving.
More is not better. Olive oil is healthy fat, but it is still fat, and the calories add up quickly. If you are managing your weight, keep the spoonful small and count it. If you are following a clinician's eating plan for heart health or blood sugar, ask how the spoonful should fit into your total fat allowance before making it a daily habit.
The Best Time to Take Olive Oil
The best time to take olive oil is whenever you will actually remember to do it. Morning, with a meal, or in the evening all work.
Morning has one practical edge: an empty stomach makes the habit easy to anchor to something you already do, like your first glass of water. Some people also prefer it before coffee to avoid an acidy stomach.
There is no strong evidence that morning beats evening. If a spoonful before bed suits you better, that is fine. The habit you keep is the one that helps.
Olive Oil for Constipation: What to Expect
Olive oil for constipation is a traditional remedy, and it has some logic behind it. Fat stimulates the digestive tract and can soften stool.
Expect a gentle effect, not a laxative one. A tablespoon in the morning may help things move within a day or two for mild cases. It will not fix chronic constipation on its own.
The bigger levers are fiber, water, and movement. Use olive oil as a supporting habit, not a standalone cure. If constipation persists, talk to a doctor.
How to Choose and Store Extra-Virgin Olive Oil
The oil you choose matters more than the timing. Extra-virgin olive oil is unrefined, which means it keeps more of its polyphenols and flavor than refined oil.
Look for these markers on the label:
"Extra virgin" and a harvest date, not just a best-by date
A single origin or region, which is easier to trace
Dark glass or a tin, which protects the oil from light
A harvest year that is recent
Store it in a cool, dark cabinet, away from the stove. Heat and light speed up rancidity. Keep the cap tight and use it within a few months of opening for the best flavor.
If you are weighing which bottle to buy, our guide on whether premium olive oil is worth the price walks through the trade-offs. For a closer look at why small producers tend to deliver fresher oil, see why choose small batch olive oil. And for storage tips that keep a bottle tasting fresh to the last drop, read the best way to store olive oil.
Start Your Morning Ritual with Fresh-Pressed EVOO
Nona's EVOO ships fresh-pressed Greek extra virgin olive oil directly to your door. We prioritize transparency and freshness.
Ready to build the habit? Shop fresh-pressed Greek olive oil and taste the difference a fresh bottle makes.
Frequently Asked Questions
Can you drink olive oil on an empty stomach?
Yes, most healthy adults can drink a small amount of extra-virgin olive oil on an empty stomach. A typical serving is 1 to 2 tablespoons, taken with water or lemon if the texture bothers you. Start with 1 teaspoon and build up over a week or two. People with gallstones, pancreatitis, or a history of digestive issues should check with a doctor first.
What are the side effects of olive oil on an empty stomach?
Some people experience nausea, loose stools, or a greasy aftertaste, especially with a large amount. Taking it with a glass of water can make it more comfortable. Stop and talk to a doctor if you get persistent diarrhea, abdominal pain, or vomiting.
How much olive oil per day should you drink?
A common morning amount is 1 to 2 tablespoons, and that amount counts toward your daily total. Olive oil is calorie-dense, so measure it rather than pouring freely, especially if you are managing weight.
Is it better to drink olive oil or use it in food?
Using extra-virgin olive oil in food is the better default. It adds flavor to your cooking. Drinking it straight is simply a convenient way to have a daily serving if you prefer a fixed ritual.
The morning spoonful only works if the oil is worth drinking. Nona's EVOO delivers fresh-pressed Greek extra-virgin olive oil with high polyphenol content, authentic heritage, and flavor that makes the ritual easy to keep. Join the club and get fresh oil delivered to your door.
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