Yes. Daily consumption of extra virgin olive oil is backed by the largest, longest nutrition studies ever conducted. PREDIMED (7,447 people, 5 years, NEJM) found a 31% reduction in cardiovascular events. Harvard (90,000+ people, 28 years, JACC) found 19% lower all-cause mortality. The FDA issued a qualified health claim. The EFSA approved a specific polyphenol health claim. No other dietary fat has this level of evidence behind it.
But you've probably heard the counterarguments: it's just a wellness trend, there are too many calories, it's hard on your stomach, doctors don't actually recommend it. Let's address every objection with the evidence and the honest caveats because this habit deserves a real answer, not a sales pitch.
For the complete benefits overview, see Olive Oil Health Benefits: What Science Proves. For the safety guide, see Can You Drink Olive Oil? Safety Guide. This article addresses the skepticism specifically.
Objection 1: "It's Just a Wellness Trend"
This is the most common dismissal, and it's the easiest to refute.
Mediterranean populations have consumed olive oil daily for at least 4,000 years. Greek per-capita consumption is approximately 24 quarts per year. The Mediterranean diet, with olive oil at its center, consistently ranks as one of the healthiest dietary patterns ever studied. The modern "olive oil shot" format is new. The daily habit is ancient.
The scientific evidence isn't a TikTok trend, but rather decades worth of peer-reviewed research:
PREDIMED (Estruch et al., 7,447 participants, 5 years, NEJM): 31% reduction in cardiovascular events with daily EVOO. This is one of the largest randomized dietary intervention trials ever conducted.
Harvard (Guasch-Ferré et al., 90,000+ participants, 28 years, JACC): 19% lower all-cause mortality, 29% lower neurodegenerative mortality, 17% lower cancer mortality. Twenty-eight years of follow-up which is 5-10x longer than most health trends survive.
Beauchamp 2005 (Nature): Discovered that oleocanthal in EVOO inhibits COX enzymes through the same mechanism as ibuprofen. Published in one of the most prestigious scientific journals in the world.
Flynn 2023 (Nutrients): Confirmed that refined olive oil showed no cardiovascular benefit and only EVOO produced the improvements. Settled the "any olive oil is fine" debate.
The research base includes hundreds of studies, hundreds of thousands of participants, and regulatory recognition from both the FDA and the European Food Safety Authority. Whether you take it as a shot or pour it on salad, the evidence for daily EVOO consumption is among the strongest for any single food.
Objection 2: "It's Too Many Calories"
One tablespoon of olive oil is 120 calories which is a real number, but context changes the math entirely.
PREDIMED participants consumed 4+ tablespoons daily which is over 480 calories from olive oil alone. They lost more weight than the control group. How? Oleic acid triggers OEA (oleoylethanolamide), a natural satiety compound that reduces total appetite. The extra fat calories were more than offset by eating less of everything else, because participants felt fuller.
For comparison, 120 calories is less than a can of soda (140), a handful of chips (150), or the butter on your morning toast (100). If your daily tablespoon of olive oil replaces any of these, or replaces seed oil in your salad dressing, margarine on your bread, or canola in your cooking, the calorie impact is neutral or positive while the health impact is dramatically better.
The honest caveat: this works when olive oil replaces less healthy fats, not when it's poured on top of an unchanged high-calorie diet. Half to a tablespoon as a substitute is the evidence-backed approach. See Olive Oil for Weight Loss and How Much Per Day.
Objection 3: "It Upsets My Stomach"
Some people do experience digestive adjustment in the first few days. Mild nausea, loose stools, or urgency. This is a real side effect that deserves honest acknowledgment.
The mechanism: olive oil stimulates bile release from your gallbladder. A concentrated dose on an empty stomach triggers rapid bile contraction, which can accelerate intestinal motility if your body isn't accustomed to it. It's the same mechanism that makes olive oil effective for constipation relief. The "side effect" and the "benefit" are the same biological process.
The fix is simple: start with one teaspoon (not a tablespoon) for 3–5 days. Take it with food rather than on an empty stomach. Increase gradually. The adjustment period is typically 3–7 days. If you tried olive oil shots once, had digestive trouble, and gave up, the dose was probably too high too fast. See Side Effects Guide for the complete ramp-up protocol.
Objection 4: "Doctors Don't Actually Recommend It"
This one is partially true but the nuance matters.
Most cardiologists and registered dietitians absolutely support daily olive oil consumption as part of a Mediterranean dietary pattern. The American Heart Association recommends replacing saturated fats with monounsaturated fats like olive oil. The FDA's qualified health claim is for 1.5 tablespoons of oleic acid-rich oils daily. In the medical community, daily olive oil is mainstream dietary advice.
A doctor will tell you to "use olive oil as your primary fat" rather than "take a tablespoon shot every morning." The health compounds are identical either way. The disagreement is about format, not about whether olive oil is good for you.
The people who benefit most from the shot format are those who don't cook with olive oil regularly. These are people who need a guaranteed minimum daily intake regardless of what they eat that day. If you already drizzle EVOO on every meal, you may not need a separate shot. If you don't, the shot ensures you get the dose the research supports.
Objection 5: "Not All Olive Oil Is Created Equal - So What's the Point?"
This objection is actually valid, and it's the most important one to understand.
Flynn's 2023 review was definitive: refined olive oil showed no cardiovascular benefit. The health advantages primarily come from polyphenols like oleocanthal, hydroxytyrosol, oleuropein which exist only in extra virgin olive oil and degrade significantly with age, heat, and light exposure.
Two bottles that both say "extra virgin" can differ dramatically polyphenol content. The supermarket bottle that's been under fluorescent lights for a year is not delivering what PREDIMED measured.
This doesn't mean "don't bother." It means "choose well." The quick test: taste your oil. If it burns the back of your throat, the oleocanthal content is meaningful. If it's smooth and mild, the anti-inflammatory compounds are low. For the full evaluation, see Best Olive Oil for Health: 5 Markers and How to Find Polyphenol-Rich Olive Oil. However, remember that an oil boasting 1000 mg/kg polyphenols does NOT mean 2x the benefits of a 500 mg/kg bottle. It's just marketing.
Objection 6: "The Studies Were on Mediterranean Populations. They Don't Apply to Me."
PREDIMED was conducted in Spain with Spanish participants. But Harvard's 28-year study tracked American nurses and health professionals eating a standard American diet. The 19% lower mortality finding comes from Americans adding olive oil to their existing dietary patterns, not from lifelong Mediterranean eaters.
The biological mechanisms - COX inhibition, LDL oxidation prevention, OEA satiety signaling - work the same regardless of your ethnic background or baseline diet. Oleocanthal inhibits the same enzymes in everyone. Hydroxytyrosol prevents LDL oxidation through the same chemistry regardless of what else you eat.
Harvard's substitution data is especially relevant: swapping just 10 grams of butter, margarine, mayo, or dairy fat for olive oil was linked to 8–34% lower mortality risk. That's a swap anyone can make, in any dietary pattern, in any population.
What the Honest Answer Looks Like
Yes, drinking olive oil every day is good for you with these caveats:
It must be extra virgin. Refined olive oil provides calories without the polyphenols that drive the benefits. The grade is non-negotiable. See Virgin vs Extra Virgin.
It should be fresh. Polyphenols degrade approximately 40% in the first year. Current-harvest oil delivers meaningfully more health compounds than oil that's been sitting for 18 months. See Does Olive Oil Go Bad?
It works best as a replacement. Replace butter, seed oils, margarine, and processed dressings with olive oil. The substitution is where the longevity math gets powerful. See Olive Oil and Longevity.
Start small. One teaspoon for the first week. Build to a tablespoon. Your body needs a few days to calibrate. See How to Drink Olive Oil: Beginner's Guide.
Consistency is everything. Harvard tracked people for 28 years. The benefits compound over months and years of daily use, not from occasional doses. The habit matters more than any single serving. See What Happens If You Drink Olive Oil Every Day.
It's not magic. Olive oil is a dietary tool, not a miracle cure. It won't reverse decades of poor diet in a week. It works as part of an overall healthy pattern, and it's one of the most evidence-backed components of that pattern available.
FAQ
Is it actually good to drink olive oil every day?
Yes. Backed by PREDIMED (7,447 people, 31% fewer cardiovascular events), Harvard (90,000+ people, 19% lower mortality), the FDA's qualified health claim, and the EFSA's polyphenol health claim. Among the most evidence-backed dietary habits in nutrition science.
Is drinking olive oil just a wellness trend?
The shot format is relatively modern, but he daily habit is ancient. Mediterranean populations have consumed olive oil daily for thousands of years. The scientific evidence confirming the benefits spans decades of peer-reviewed research, not social media trends.
Won't drinking olive oil make me gain weight?
Not when used as a fat replacement. PREDIMED participants consumed 4+ tablespoons daily and lost more weight. Oleic acid triggers OEA, a satiety signal that reduces overall appetite. The key: replace other fats, don't add on top. See Olive Oil for Weight Loss.
Is it safe to drink olive oil on an empty stomach?
Yes, for most healthy adults. Some people experience mild digestive adjustment in the first few days. Start with one teaspoon and increase gradually. See Olive Oil on an Empty Stomach.
Do doctors recommend drinking olive oil?
Most cardiologists and dietitians support daily olive oil consumption. The AHA recommends replacing saturated fats with monounsaturated fats like olive oil. The format debate (shots vs meals) is about preference, not about whether olive oil is beneficial.
How long until I see benefits from drinking olive oil daily?
Digestive improvements: first week. Cholesterol changes: 3–6 weeks. Anti-inflammatory effects: weeks to months. Longevity benefits: years of consistent daily use. The benefits compound the longer you maintain the habit, the greater the cumulative effect.
The Bottom Line
The skepticism is understandable and wellness culture has burned people with overhyped, under-researched products. But olive oil is the opposite of that pattern. The research is deeper, broader, and longer-running than for virtually any other single food. Two of the most prestigious medical journals in the world published the landmark findings. Two regulatory agencies issued health claims.
One tablespoon of quality EVOO every day. That's the habit behind the healthiest, longest-lived populations on earth, and the habit confirmed by the largest nutrition studies ever conducted.
Hoji makes it simple: lab-tested, polyphenol-verified, single-origin EVOO in sealed single-serve packets. One packet, one shot, every day with no measuring, oxidation, or guessing.
This article summarizes findings from published research and is for educational purposes only. It is not medical advice and is not intended to diagnose, treat, cure, or prevent any disease. Talk to your doctor before making changes to your diet, especially if you have a medical condition or take medication.
Related Guides
The evidence: Olive Oil Health Benefits: What Science Proves
Is it good for you? Is Drinking Olive Oil Good for You?
What does it do? What Does Drinking Olive Oil Do?
Safety: Can You Drink Olive Oil? Safety Guide
Side effects: What to Expect & How to Minimize
Dosage: How Much Per Day
Getting started: How to Drink Olive Oil: Beginner's Guide
Daily timeline: What Happens Every Day
A spoonful a day: Real Benefits & What to Expect
The complete reference: Drinking Olive Oil: Benefits, Risks & How Much
Shots guide: Olive Oil Shots: Complete Guide
Best oil to choose: Best Olive Oil for Health
Best to drink: Best Olive Oil to Drink Daily
Longevity: Olive Oil and Longevity
