Fresh-Pressed Olive Oil Club

The Olive Oil Hunter News #106

Seafood Fra Diavolo Recipe, Spotlight on Peppers and Tomatoes, and Issues with Late Night Snacking

’Tis the season for indulgences, and there’s no better place to start than in the kitchen with festive seafood fra diavolo, a zesty tomato sauce‒based dish. It comes together in only minutes! I’m also sharing new findings on the benefits of tomatoes and, to get a head-start on your New Year’s resolutions, an explanation of why late-night eating can derail your health efforts.

Seafood Fra Diavolo

  • Seafood Fra Diavolo Seafood Fra Diavolo

    This Italian classic often gets its heat from pepperoncino (red pepper) flakes, but I love the depth that comes from including fresh serrano pepper in the garlic and onion sauté. For another layer of flavor, I use a full can of tomato paste. So delicious, plus you can make it your own with any seafood you like—go simple with shrimp, lavish with lobster tail meat and scallops or easy with chunks of your favorite fish!. As a final step to this recipe, you might stir in a pound of shelled shrimp and cook until opaque. Serve it with or without pasta. It’s also delicious with any legume-based pasta—top with a good amount of grated Parmesan or Pecorino.

    Ingredients

    • 3 tablespoons extra virgin olive oil, more as needed
    • 2 pounds assorted seafood, such as 8 ounces each peeled shrimp, scallops, calamari rings, and crabmeat
    • ½ cup finely chopped onion
    • 1 serrano pepper, seeded and chopped
    • 4 large garlic cloves, peeled and chopped
    • 1 6-ounce can tomato paste
    • ½ cup red wine
    • 1 28-ounce can crushed tomatoes
    • ½ teaspoon dried oregano
    • Pinch of salt

    Directions

    Step 1

    Heat a large skillet—it’s ready when a few drops of water sizzle on the surface. Add the olive oil and then the seafood, gently searing it on all sides. With a slotted spoon, transfer the seafood to a bowl next to your cooktop. Add more oil to the pan if needed, then add the onions and sauté until soft and translucent, but not browned. 

    Step 2

    Add the pepper and garlic and cook until soft. Then add the tomato paste and cook it until fragrant and almost brown-burgundy in color, whisking it constantly as it caramelizes. Slowly whisk in the wine and then add the crushed tomatoes, oregano, and salt, and heat through.

    Step 3

    Return the seafood to the pan and cook for 3–4 minutes until cooked through. Serve over your choice of pasta.

    Yields 4 servings

Food Pairings: The Power of Purple Potatoes

Healthy Ingredient Spotlight

Heat advisory: picking peppers

When fresh chile peppers aren’t available, dried varieties are great alternatives. Wondering whether to grab the cayenne or add a few shakes from the jar of red pepper flakes? It depends on how spicy you want your dish. As its name implies, cayenne is made purely from cayenne peppers, which are some of the hottest chiles. As cayenne is usually close to a powder, it will infuse your entire dish with heat. Red pepper flakes are more generic in nature. They’re typically made from a combination of three or four different chile varieties, cayenne included, and will deliver milder heat—you can always add more at the table if you want it spicier.  

Healthy Ingredient Spotlight: Sweet spices for savory dishes

Healthy Kitchen Nugget

Why you should sauté tomato paste

You might have been surprised to see in the direction to cook the tomato paste in the fra diavolo recipe before adding the next ingredients. It’s a step you should always follow, even if the directions call for a very small amount. Doing so brings out the sweet flavor of the tomatoes and gets rid of any tinny taste it might have when “raw” from the can.

Healthy Kitchen Nugget: The Truth About Nondairy Milks

For Your Best Health

Another reason to eat more tomatoes

You likely know that cooked tomatoes have high levels of lycopene, an antioxidant that fights off cell damage and protects your immune system, plus lots of lutein and zeaxanthin for eye health. Research has also found links between eating tomatoes and a reduced risk for developing heart disease and some cancers. Now scientists at The Ohio State University have learned from an animal study that tomatoes have the potential to boost the diversity of gut bacteria. That’s important because the makeup of your gut microbiome—the community of microorganisms in your GI tract—has a lot of influence on the health of your entire body.  

The scientists did their study using pigs because their GI tracts are more similar to the human digestive system than are more typical lab animals. Also, the tomatoes, similar to the type typically found in canned tomato products, were developed by OSU geneticist and study co-author David Francis. Benefits to the gut biome were seen after the animals were fed a diet heavy in tomatoes for just two weeks.

The next study will be on people. “It’s possible that tomatoes impart benefits through their modulation of the gut microbiome,” said senior author Jessica Cooperstone, assistant professor of horticulture and crop science as well as food science and technology at OSU. “Overall dietary patterns have been associated with differences in microbiome composition, but food-specific effects haven’t been studied very much. To really understand the mechanisms, we need to do more of this kind of work in the long term in humans. We also want to understand the complex interplay—how does consuming these foods change the composition of what microbes are present and, functionally, what does that do? … A better understanding could lead to more evidence-based dietary recommendations for long-term health.”

Healthy Kitchen Nugget: The Value of Variety

Fitness Flash

Late meals and midnight snacks: just say no

They say a calorie is a calorie is a calorie. But research continues to show that calories eaten late at night don’t seem to have the same effect on the body as ones eaten earlier in the day: They tend to lead to weight gain, increased body fat, and a difficulty in losing weight. Now scientists atBrigham and Women’s Hospital in Boston have discovered why that is. “We wanted to test the mechanisms that may explain why late eating increases obesity risk,” explained senior author Frank A.J.L. Scheer, PhD, director of the Medical Chronobiology Program in Brigham’s Division of Sleep and Circadian Disorders. 

The research involved 16 people with a BMI in the overweight or obese range. Each participant completed two separate components of the study, one day on an early meal schedule and the other day with the exact same meals, but with each one scheduled about four hours later in the day. The participants reported on their hunger and appetite, had blood and fat tissue samples taken throughout each study day, and had their body temperature and calorie use measured. 

Explained first author Nina Vujovic, PhD, a researcher in Brigham’s Medical Chronobiology Program, “In this study, we asked, ‘Does the time that we eat matter when everything else is kept consistent?’ And we found that eating four hours later makes a significant difference for our hunger levels, the way we burn calories after we eat [at a slower rate], and the way we store fat.” Results also showed that eating later had profound effects on two hormones: leptin, which tells us when we’ve had enough food, and ghrelin, which influences the drive to eat. Leptin levels were lower across the entire 24 hours on the day participants ate later meals compared with when they ate earlier in the day. 

While more research is needed to see whether these findings will hold in real life as they did during the controlled parameters of the study, it looks promising that one strategy to promote weight loss and limit weight gain is to schedule meals earlier in the day, according to Dr. Scheer.

Get More Recipes In Your Inbox!

The Olive Oil Hunter News #105

Clam Cakes Remoulade Recipe, Spotlight on Canned Clams and Clam Juice, the Importance of Short Breaks and Physical Function

Clambake season may be over, but clam cakes are always on the menu. In fact, wild clams are available year-round. And they’re so easy to make with my easy-peasy recipe. I’m just as excited to share the results of research that shows the value of taking regular breaks from tasks—just 10 minutes for a refresh. Plus, with a nod to preventive care, another study found that there’s no time like the present to work on your “physical function.” Simply put, it’s the ease (or difficulty) with which you move in everyday ways. When physical function is poor in later years, it increases not only your risk for falling, but also for life-threatening heart events.

Clam Cakes Remoulade

  • Clam Cakes Remoulade Clam Cakes Remoulade

    These clam cakes come together in minutes. The remoulade sauce is a delicious garnish—use any leftovers as a flavorful sandwich spread. 

    Ingredients

    For the remoulade:

    • 1 cup high-quality mayonnaise
    • 1 tablespoon extra virgin olive oil
    • 2 tablespoons Dijon mustard
    • 1 tablespoon hot sauce, such as Cholula or Sriracha
    • 1 teaspoon seafood seasoning, such as Obrycki’s or Old Bay
    • 1 large pickle spear, finely diced
    • 1 tablespoon pickle juice
    • 1 teaspoon sweet paprika

    For the clam cakes:

    • 6 ounces of clams, freshly steamed or canned and drained
    • 1 small onion, peeled and quartered
    • 1 small red bell pepper, seeded and quartered
    • 1 stalk celery, trimmed and cut into chunks
    • 12 spicy corn tortilla chips, such as Garden of Eatin’ Red Hot Blues 
    • 1 cup white whole wheat flour, divided
    • 1/2 cup high-quality mayonnaise
    • 2 tablespoons fresh parsley, chopped
    • 1 1/2 teaspoons hot sauce, such as Cholula or Sriracha
    • 3 tablespoons extra virgin olive oil

    Directions

    Step 1

    For the remoulade: Mix all the ingredients in a bowl. Refrigerate until needed.

    Step 2

    For the clam cakes: If you’re steaming fresh clams, reserve the juice they release for another recipe. If you’re using large cherrystones, use kitchen shears to cut them into pieces for easier processing. Pulse the clams, vegetables, and chips in a food processor until you get a fine dice. Transfer to a large bowl and fold in half the flour, the mayo, hot sauce, and parsley. Form into about 10 small or 6 large patties. 

    Step 3

    Place the rest of the flour in a pie plate. Heat a heavy skillet and then add the olive oil. Very lightly dip both sides of each patty into the flour, shake off any excess, and place in skillet. Cook until a light crust develops, about 5 to 8 minutes. Flip and cook for another 5 minutes.

    Step 4

    Transfer the clam cakes to a serving dish or individual plates. Top with dollops of the remoulade and pass more on the side. 

    Yields 3-4 servings

Food Pairings: The Power of Purple Potatoes

Healthy Ingredient Spotlight

Canned clams step in for fresh

You probably have cans of high-quality tuna in your pantry, but what about clams? Flavorful and sweet, canned clams deserve a place there too. For recipes from clam cakes to linguine with clam sauce, they’re a great alternative to fresh, and always having them on hand means you can pull together a meal in short order. Read labels and choose brands that state product of the US.

Healthy Ingredient Spotlight: Sweet spices for savory dishes

Healthy Kitchen Nugget

Get these juices flowing

Fresh clam juice is a world apart from the bottled variety. So, whenever you steam fresh clams, save the liquid in your pot. Strain it through fine cheesecloth to move any grains of sand, and use within a few days or freeze in freezer-safe containers labeled with the date (use within a year). Clam juice works very well in seafood recipes that call for fish broth, from soups to stews to poached fish. Keep in mind that clam juice is naturally salty, thanks to the clam’s native habitat—the ocean. So, be sure to taste often when using it in a recipe; you can probably cut down on the amount of salt called for. 

Healthy Kitchen Nugget: The Truth About Nondairy Milks

For Your Best Health

Take 10…often

Are you bogged down by endless tasks at work? Taking short breaks rather than staying glued to your desk until the day’s done could give you a boost and lessen fatigue. That was the main finding of a research review done at the West University of Timisoara in Romania. Patricia Albulescu, PhD, and colleagues looked at 22 recent studies investigating the potential benefits of taking micro-breaks from assigned tasks. 

The tasks varied from one study to another and so did the types of breaks—physical breaks, relaxing activities, and more engaging activities, such as watching videos. Nonetheless, the scientists found an overall link between micro-breaks, higher levels of vigor, and lower fatigue in participants, suggesting that these work pauses may contribute to well-being. They also found that longer breaks tended to be linked to better performance, especially for creative or clerical tasks, though less so for more cognitively demanding tasks—longer breaks may be needed for recovery from them. The review was published in the journal PLOS One on August 31, 2022.

Healthy Kitchen Nugget: The Value of Variety

Fitness Flash

Physical function, not just fitness

Different from physical fitness (though definitely linked to it), physical function relates to mobility, assessing your walking speed, leg strength, speed of rising from a chair without using your hands, and balance. Research published in the Journal of the American Heart Association found that having lower physical function was independently associated with a greater risk of developing heart attack, heart failure, and stroke in people over age 65. 

“While traditional cardiovascular disease risk factors such as high blood pressure, high cholesterol, smoking, or diabetes are closely linked to cardiovascular disease, particularly in middle-aged people, we also know these factors may not be as predictive in older adults, so we need to identify nontraditional predictors for older adults,” says study senior author Kunihiro Matsushita, MD, PhD, an associate professor in the department of epidemiology at the Johns Hopkins Bloomberg School of Public Health and the Division of Cardiology at the Johns Hopkins School of Medicine in Baltimore. “We found that physical function in older adults predicts future cardiovascular disease beyond traditional heart disease risk factors, regardless of whether an individual has a history of cardiovascular disease.”

The researchers analyzed health data from 5,570 adults over an eight-year period. Using participants’ scores on the Short Physical Performance Battery, a test that measures various aspects of physical function, they were categorized as having low, intermediate, or high physical function. Here’s what they found:

  • Compared to adults with high physical function scores, those with low scores were 47 percent more likely to experience at least one cardiovascular disease event, and those with intermediate physical function scores had a 25 percent higher risk of having at least one cardiovascular disease event.
  • The association between physical function and cardiovascular disease remained after taking into account traditional cardiovascular disease risk factors such as age, high blood pressure, high cholesterol, and diabetes.
  • The physical function score contributed to the risk prediction of cardiovascular disease outcomes beyond traditional cardiovascular risk factors, regardless of whether individuals had a history of cardiovascular disease or were healthy.

“Our findings highlight the value of assessing the physical function level of older adults in clinical practice,” says study lead author Xiao Hu, MHS, a research data coordinator in the department of epidemiology at the Johns Hopkins Bloomberg School of Public Health. “In addition to heart health, older adults are at higher risk for falls and disability. The assessment of physical function may also inform the risk of these concerning conditions in older adults.”

With falls being a major health threat in later years, what prevention steps are helpful? A 2022 American Heart Association scientific statement titles “Preventing and managing falls in adults with cardiovascular disease” advises medication adjustments, reassessing treatment plans, considering non-drug treatment options, and properly managing heart rhythm disorders. 

It’s never too soon (or too late) to start working on physical function. Talk to your doctor about balance exercises, yoga, tai chi, and other approaches that can help.

Get More Recipes In Your Inbox!

The Olive Oil Hunter News #104

Cuban Chicken with Mango Salsa and Olive Oil Lemon Curd Recipes, Spotlight on Calamansi Vinegar and Vinegar as Home Remedy

Vinegar Essentials, Part IV: Calamansi Vinegar

My goals in introducing you to craft vinegars are to elevate your cooking and delight your palate.  This newsletter’s featured vinegar is also one that will completely surprise you: calamansi vinegar. You may never have heard of it, much less experienced it, but the bouquet and taste are exquisite. And you may find yourself reaching for it whenever lemon is called for. To show you just how versatile it is, enjoy these two recipes, the first a main dish and the second a dessert!

Cuban Chicken with Mango Salsa

  • Cuban Chicken with Mango Salsa Mojo Chicken With Avocado & Mango Salsa

    The following recipe features a marinade of mojo, the Cuban classic built on a base of olive oil, citrus, and garlic. I like to double the salsa ingredients to have some as a dip for chips or for another dish the next day.

    Ingredients

    For the marinade:

    • 1 teaspoon ground cumin
    • 4 garlic cloves, crushed
    • 1 jalapeño, seeded and chopped
    • 1/4 teaspoon coarse salt
    • 3 tablespoons extra virgin olive oil
    • 3 tablespoons fresh lime juice
    • 3 tablespoons fresh orange juice
    • 2 tablespoons gourmet vinegar
    • 3 pounds skinless chicken thighs

    For the salsa:

    • 2 tablespoons extra virgin olive oil
    • 2 tablespoons gourmet vinegar
    • 1/4 cup fresh orange juice
    • 2 teaspoons orange zest
    • 2 teaspoons lime zest
    • 1 teaspoon honey
    • 1 teaspoon soy sauce
    • 4 tablespoons butter, cubed
    • 2 ripe mangos, peeled, pitted, and diced
    • 2 ripe avocados, peeled, pitted, and diced
    • 3 tablespoons chopped fresh cilantro

    Directions

    Step 1

    Marinate the chicken: In a food processor, pulse the cumin, garlic, jalapeño, and salt into a paste, and then drizzle in the olive oil, the juices, and vinegar. Place the chicken in a large bowl, pour in the marinade, rotate it to distribute the marinade, and cover. Refrigerate for 3 hours or overnight.

    Step 2

    An hour before you’re ready to grill the chicken, prepare the salsa. In a medium saucepan, whisk the oil, vinegar, juice, zests, honey, and soy sauce and bring to a boil. Lower the heat and simmer until reduced by half. Remove from the heat and whisk in the butter. Place the mangos and avocados in a bowl and drizzle with the reduced sauce. Gently fold to coat the fruits, and then sprinkle with the cilantro; set aside.

    Step 3

    Grill the chicken until it reaches an internal temperature of 165°F. Transfer to a platter and spoon on half the salsa, serving the rest on the side.

    Yields 4-6 servings.

Olive Oil Lemon Curd

  • Olive Oil Lemon Curd Olive Oil Lemon Curd

    Extra virgin olive oil gives classic lemon curd all the silkiness of butter without the saturated fat. It’s delicious spooned over Greek yogurt and topped with berries—serve it in a champagne glass for an indulgent yet good-for-you dessert. You can also use it to make a lemon tart—fill a baked and cooled 8″ tart shell with the chilled curd, and top with dollops of whipped cream.

    Ingredients

    • 3 large or 5 small lemons
    • 2 large eggs, plus 1 yolk
    • 10 tablespoons sugar 
    • 2 tablespoons cornstarch 
    • ½ teaspoon vanilla paste
    • Pinch of sea salt
    • 2 tablespoons mild extra virgin olive oil 

    Directions

    Step 1

    Rinse the lemons, dry them thoroughly, and then zest them with a microplane grater. You should have a generous tablespoon of zest. Juice the lemons. You should have a generous cup of juice. Some pulp is fine to include, but remove any seeds.

    Step 2

    In a heavy-bottomed saucepan, use a silicone whisk to blend the eggs thoroughly, and then whisk in one ingredient at a time in this order: sugar, cornstarch, lemon juice and zest, vanilla, and salt—this will give you the silkiest results without needing to strain the mixture after cooking.

    Step 3

    Place the pan over medium heat and continue to whisk as you bring the mixture to a very low boil. Cook for two minutes (this activates the cornstarch), lowering the heat if necessary to prevent a rapid boil. The curd should be thick enough to coat the whisk.

    Step 4

    Off the heat, slowly whisk in the olive oil until it’s completely blended in. Pour the curd into a glass pitcher or jar and allow it to come to room temperature before covering and placing it in the fridge to thicken further.

    Yields 1-¾ cups.

Healthy Ingredient Spotlight: The finest vinegar comes from the finest grapes

Spotlight on Calamansi Vinegar

A taste sensation unlike any other

Just what is a calamansi? It’s a citrus fruit often described as a cross between a kumquat and a mandarin orange, though its taste makes me think of exotic yuzu enhanced with a blend of traditional citrus—orange, lemon, and lime. Which of these fruits a calamansi’s skin color most resembles is an indication of ripeness: Green is underripe, yellow is ripe, and orange is overripe. Also called a calamondin or Philippine lime (where it’s now primarily grown), the calamansi is native to many countries in Southeast and East Asia, such as Indonesia and (southern) China, and it’s a staple of many cuisines in these regions. 

If you’ve never even heard of calamansi the fruit, much less tasted calamansi the vinegar, get ready to experience an explosion of flavor in your mouth! It’s fresh, dynamic, and versatile, and made with the same passion that guides master vinegar vintners. The recipe for the calamansi vinegar in my collection blends fruit pulp with brandy vinegar and pure cane sugar, which both preserve and further enhance the fruit’s intense and unique flavor while imparting just the right note of sweetness. The fruit is sourced through a partner program in the Philippines that ensures a fair price for small farmers and also supports various school projects for children. The cane sugar is also Fair Trade. 

Food Pairings: Enjoying red wine vinegar

Food Pairings

Enjoying calamansi vinegar

Use it in sweet or savory recipes and in Asian and other ethnic dishes. Drizzle it over seafood dishes, like ceviche and tuna tataki; crudo; vegetable and grain salads; greens (raw or cooked); and roasted vegetables. It’s excellent in a marinade for fish and as a finish for chicken piccata and other recipes with a lemon sauce. Swap it for lemon juice in aioli and homemade mayo and for lime juice in guacamole and salsas. It enhances citrus-based desserts, from a granita to a curd-filled tart, and alcoholic and non-alcoholic drinks—try a cooler of crushed ice, raspberry purée, and sparkling water or wine. Add it to your favorite caramel recipe, and mix it with honey before drizzling over pound cake or ginger ice cream. 

Healthy Kitchen Nugget: Versatile vinegar

Healthy Kitchen Nugget

What’s old is new again

With the current popularity of vinegar, it’s easy to forget that it has been around for 10,000 years, not only as a condiment but also as a means of pickling and preserving other foods. Another way it was used back then, as it is now, is as a home remedy—recognized by none other than Hippocrates, the “Father of Medicine.” Over the centuries, vinegar has served as a digestif (often in the form of a drink diluted with water) and was thought to protect liver health, heal wounds, and combat sore throats, fever, and even hair loss. It took the great microbiologist Louis Pasteur to fully unravel the mystery of acetic fermentation and identify key microbes so that vinegar could be crafted safely as well as deliciously! Recently, vinegar has become a popular ingredient in craft cocktails—what a fun way to tap into its potential healthful properties.

Get More Recipes In Your Inbox!

The Olive Oil Hunter News #103

Very Berry Muffins Recipe, and The Power of a Polyphenol: Exciting Developments Show Extra Virgin Olive Oil’s Role as a Functional Food

As your Olive Oil Hunter, I travel the globe to find the most flavorful extra virgin olive oils, often described as one-, two-, or even three-cough oils because of the reaction elicited by their pepperiness. Turns out this pepperiness isn’t just an indicator of great taste—it’s also a sign that you’ll get all the benefits of the olive oil. The cough is caused by the oil’s special polyphenols, and those polyphenols are exactly where most of its benefits come from. Want a delicious way to get your fill? Try these scrumptious muffins—so good they can double as dessert—and then read about the one polyphenol in particular that’s getting researchers’ attention.

Very Berry Muffins

  • Very BlueBerry Muffins Very Berry Muffins

    These extra-moist muffins provide a blueberry explosion in every bite. You won’t have to hunt for the fruit because tossing the berries in a small amount of flour keeps them from sinking to the bottom.

    Ingredients

    • 3 heaping cups blueberries, rinsed and patted dry
    • ½ cup plus 1 tablespoon white whole wheat flour
    • 1 cup all-purpose or pastry flour
    • 2-½ teaspoons baking powder 
    • 1 teaspoon baking soda
    • 1 teaspoon kosher salt
    • 3/4 cup cottage cheese
    • 1/4 cup sour cream
    • 1/2 cup Greek yogurt
    • 3 large eggs
    • 1 scant cup sugar  
    • 3/4 cup extra virgin olive oil
    • 1 tablespoon vanilla paste or extract 

    Directions

    Step 1

    Preheat your oven to 350°F. Lightly coat a 12-muffin tin with nonstick cooking spray or a small amount of olive oil. 

    Step 2

    Toss the blueberries with the tablespoon of white whole wheat flour and set aside. Mix the rest of the dry ingredients in a bowl. 

    Step 3

    In a second, larger bowl, whisk the cottage cheese, sour cream, and yogurt until smooth, then whisk in the eggs and sugar and, when blended, the oil and vanilla. 

    Step 4

    Fold in the flour mixture and then the blueberries. Use a large ice cream scoop to fill the muffin cups, mounding the batter in the center. (The batter will completely fill the cups.)

    Step 5

    Bake for about 45 minutes, until the tip of a knife inserted in the center of two or three muffins doesn’t show any raw batter—there may be some blueberry on it. Let the muffins cool for about 15 minutes before eating.

    Yields 12 large muffins

The Power of a Polyphenol ​

For Your Best Health

The Power of a Polyphenol ​

Extra virgin olive oil gets high marks for its healthy fats called monounsaturated fatty acids, or MUFAs. But research is showing that one of EVOO’s greatest gifts to health is likely a polyphenol that most of us would have a hard time nailing at a spelling bee: oleocanthal. Olive oil contains about 36 different healthful phenolic compounds in all, yet together with other secondary plant metabolites, these make up just 2 percent of its total weight—another example of good things coming in small packages!

Though people have been enjoying olive oil for thousands of years, oleocanthal wasn’t identified as a phenolic compound in EVOO until the early ’90s when it went by the even-harder-to-spell decarboxymethyl ligstroside aglycone, according to a review of its beneficial effects on inflammatory disease published in 2014 in the International Journal of Molecular Sciences. And it wasn’t until the ’00s that a group of scientists pinpointed it as the sole source of the peppery sensation you get from high-quality EVOO. They appropriately renamed it oleocanthal—oleo for olive, canth for sting, and al for aldehyde. 

You already know that hundreds of studies have been done on the Mediterranean diet with olive oil as its heart. A new review, “The Mediterranean Diet: An Update of the Clinical Trials,” which was published in 2022 in the journal Nutrients, summed up the main findings very well: A detailed analysis of 32 observational studies revealed that olive oil consumption “decreased the risk of stroke, CHD, and diabetes and improved some metabolic and inflammatory biomarkers.” What the report also detailed is that EVOO’s phenolic compounds help fight disease by fighting inflammation and boosting the immune system. 

Recently, more and more studies have been looking at the benefits of olive oil derived from oleocanthal in particular because, as the Nutrients’ report states, it helps inhibit the activity of COX1 and 2, key enzymes that drive the inflammatory process. With inflammation being the starting point of many health conditions, limiting levels in the body is important.

Here are some of the clinical trials the report homed in on to show oleocanthal’s potential:

One small study looked at whether following a high-quality extra virgin olive oil or HQ-EVOO- enriched MedDiet could lower inflammation in overweight or obese people—excess weight is an inflammatory condition that stresses the body. The researchers put two groups of people, one overweight or obese and the other of normal weight, on the diet for three months. Interestingly, both groups showed benefits at the end of the study—lower inflammation and oxidative stress and better gut microbiota composition “mainly related to the diet’s anti-inflammatory and antioxidant properties.” This finding opens the door to doing larger studies to pinpoint diet-related interventions to reduce inflammation and oxidative stress in people above a healthy weight. The report also concluded that, based on this and similar clinical trials, “strict and long-lasting adherence to a MedDiet seems to be essential for its interventional improvements.”

Other clinical trials hint at a better understanding of oleocanthal’s potential anti-cancer properties and the role it could play, within the larger context of nutrition, in terms of both preventing and managing cancer. One small study involving people with chronic lymphocytic leukemia, or CLL, a blood cancer, found evidence of the beneficial effects of EVOO with high levels of oleocanthal (OL) and another polyphenol, oleacein (OC). As the report stated, “The authors specified that this was a pilot study mainly focused on the tolerability of the intervention with high OC/OL EVOO,” meaning simply whether people with CLL could follow such a diet without ill effects. What the researchers found went beyond that: Their preliminary “data revealed a beneficial effect of high OC/OL EVOO on hematological [blood] and biochemical markers.” 

Small clinical trials like these are very promising, but the report’s authors caution that, as with all small trials, they need to be repeated with much larger groups of people to confirm findings. Still, these are exciting developments that show extra virgin olive oil’s role as a functional food in addition to its wonderful taste.

Get More Recipes In Your Inbox!