The best olive oil to drink is a fresh, high-quality extra virgin olive oil (EVOO) with a high polyphenol content, ideally from the most recent harvest year. Not all extra virgin oils are equal for this purpose. The protective compounds that make drinking olive oil worthwhile vary dramatically between bottles, and knowing what to look for can make the difference between a health-boosting ritual and an expensive shot of mediocre fat.
Why Extra Virgin Is the Only Option Worth Drinking
Extra virgin olive oil is the only grade that preserves the full range of beneficial plant compounds found in olives. To earn the “extra virgin” label under USDA standards, the oil must have a free fatty acid content below 0.8%, zero sensory defects, and a measurable level of fruitiness. These requirements mean the oil was mechanically pressed without heat or chemicals, keeping its natural antioxidants intact.
Refined olive oil, “light” olive oil, and standard olive oil have all been processed in ways that strip out most of these compounds. They still contain healthy monounsaturated fats, but the specific antioxidants linked to reduced inflammation and heart protection are largely gone. If you’re going to drink olive oil straight, refined grades offer little advantage over simply cooking with any healthy oil.
Early Harvest Oil Packs the Most Antioxidants
Within the extra virgin category, early harvest oils stand out for drinking. These are made from olives picked while still green, before they fully ripen. Because the olives are younger, they contain significantly higher concentrations of polyphenols, the antioxidant compounds responsible for most of olive oil’s health benefits. These polyphenols include a compound called oleocanthal, which inhibits the same inflammation pathways as ibuprofen. A 2005 study published in Nature confirmed that oleocanthal has a potency and mechanism strikingly similar to ibuprofen, blocking the same enzymes involved in producing inflammatory signals.
You can identify early harvest oil by its flavor. It tastes bold, grassy, and slightly bitter, with a peppery burn at the back of the throat. That throat sting is actually the oleocanthal itself activating receptors in your throat. A stronger sting generally signals higher oleocanthal content. If an olive oil tastes mild and buttery, it likely has lower polyphenol levels.
What to Look for on the Label
Current extra virgin standards don’t actually require testing for polyphenol content, which means two bottles both labeled “extra virgin” can have wildly different levels of beneficial compounds. The individual phenols present depend on the olive variety, growing conditions, harvest timing, and how the oil was processed and stored. Here’s what to check:
- Harvest date: This matters more than the “best by” date. Polyphenol content is highest right after harvest and declines with age and storage. Look for oil harvested within the past 12 months.
- Olive variety: Certain cultivars are naturally higher in polyphenols. Coratina, Koroneiki, Picual, and Moraiolo are among the richest. Single-variety (monovarietal) bottles often list this information.
- Dark glass or tin packaging: Light and heat degrade polyphenols quickly. Clear glass bottles sitting under store lights lose potency over time.
- Third-party certification: Seals from organizations like the California Olive Oil Council (COOC) or the North American Olive Oil Association (NAOOA) indicate the oil has been independently tested. Some California and Australian producers follow stricter standards that include freshness markers related to phenol content.
- Polyphenol count on the label: A growing number of brands now list their polyphenol content in milligrams per kilogram. For drinking purposes, look for oils above 250 mg/kg. Some early harvest oils exceed 500 mg/kg.
How Much to Drink Daily
You don’t need much. A large Harvard study found that people who consumed at least half a tablespoon of olive oil per day had a 14% lower risk of heart disease compared to those who used none. Most recommendations for drinking olive oil fall between one and two tablespoons daily, which provides roughly 120 to 240 calories.
Those calories add up. A tablespoon of olive oil contains about 120 calories and 14 grams of fat (mostly monounsaturated). If you’re adding olive oil on top of your normal diet without adjusting anything else, the caloric surplus can work against you. Research suggests olive oil consumption alone does not reduce body weight in people with obesity. The benefit comes from replacing less healthy fats, not simply adding more fat to your diet.
Straight or With Food
Some people take a shot of olive oil first thing in the morning on an empty stomach, often as a digestive aid. Olive oil does have a mild laxative effect and can help soften stools for people dealing with constipation. A small number of people experience nausea when drinking it straight, especially on an empty stomach.
From a nutrient absorption standpoint, though, olive oil works better alongside food. Consuming it with vegetables, particularly tomatoes, significantly increases your absorption of fat-soluble antioxidants from those foods. The polyphenols in the oil itself are absorbed either way, but pairing olive oil with a meal gives you a compounding benefit. Drizzling it over a salad, soup, or cooked vegetables is just as effective as drinking it from a spoon, and considerably more pleasant for most people.
Specific Brands and Regions to Consider
No single brand is universally “the best,” but certain characteristics narrow the field. Southern hemisphere oils from Chile, Australia, and South Africa are harvested around May or June, while northern hemisphere oils from Italy, Spain, Greece, and California are harvested between October and January. Buying based on the most recent harvest from either hemisphere ensures you’re getting the freshest oil available at any time of year.
Greek Koroneiki oils, Spanish Picual oils, and Italian Coratina oils are consistently among the highest in polyphenol content. California producers like Cobram Estate, Katz Farm, and Boundary Bend have performed well in independent quality testing. For explicitly high-polyphenol oils marketed for drinking, smaller specialty brands often list exact polyphenol counts and harvest dates on the bottle. These typically cost more, ranging from $20 to $50 for a 500ml bottle, but for a tablespoon-a-day habit, a single bottle lasts over a month.
Store your oil in a cool, dark place and use it within a few months of opening. Once exposed to air, the polyphenols begin to oxidize and lose their potency. A bottle that sat open in your pantry for six months has lost a meaningful share of the compounds you’re paying a premium for.