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Is Olive Oil Better on an Empty Stomach?

5 min read

According to a 2018 review, the Mediterranean diet, rich in olive oil, promotes weight loss more than diets low in olive oil, but a debate remains whether consuming it on an empty stomach offers amplified benefits. While a serving of olive oil is full of healthy fats and antioxidants, the timing of consumption may influence its effects on digestion, weight management, and nutrient absorption.

Quick Summary

This article explores the practice of consuming olive oil on an empty stomach, weighing traditional beliefs against scientific evidence. It details potential benefits for digestion, cardiovascular health, and appetite control, while also addressing concerns regarding calorie intake, gastrointestinal discomfort, and the importance of quality. Expert advice is included to help determine if this practice is right for you.

Key Points

  • No definitive proof: There is no conclusive scientific evidence that drinking olive oil on an empty stomach is superior to consuming it with meals.

  • Digestive benefits: Taking olive oil can act as a natural lubricant, potentially easing constipation and soothing the digestive tract.

  • Watch the calories: Olive oil is calorie-dense, so excessive intake can lead to weight gain.

  • Listen to your body: For sensitive individuals, consuming oil on an empty stomach may cause mild gastrointestinal discomfort like nausea or acid reflux.

  • Mix for taste: Adding lemon juice to olive oil can improve palatability and may offer additional digestive support.

  • Quality matters most: The highest health benefits are derived from consistent consumption of high-quality, extra virgin olive oil, which is rich in polyphenols and antioxidants.

In This Article

The Origins and Claims of Drinking Olive Oil on an Empty Stomach

For centuries, particularly within Mediterranean cultures, a serving of olive oil has been consumed first thing in the morning as a traditional folk remedy for various ailments. Proponents claim that taking extra virgin olive oil (EVOO) on an empty stomach allows the body to absorb its nutrients more efficiently, kickstarts digestion, and provides a daily dose of its beneficial compounds.

Historically, this practice was passed down through generations before extensive scientific inquiry. The belief is that the oil can act as a natural lubricant for the digestive system, soothing the gastric lining and promoting healthy bowel movements. With the rise of modern wellness trends, this ancient custom has found new life, attracting interest for its potential to aid detoxification and improve overall health.

Potential Health Benefits

While the general health benefits of olive oil are well-documented, some claim that taking it on an empty stomach can maximize certain effects. Here's a look at the most cited benefits:

  • Improved Digestion and Constipation Relief: Olive oil acts as a lubricant, which helps ease the passage of stool through the intestines. A 2015 study in the Journal of Renal Nutrition found that consuming a small amount of olive oil daily was as effective as mineral oil for treating constipation in hemodialysis patients. Taking it on an empty stomach may help stimulate the digestive system first thing in the morning.
  • Heart Health Support: Olive oil is rich in monounsaturated fats and polyphenols, which can help increase 'good' cholesterol (HDL) and lower 'bad' cholesterol (LDL). A systematic review in 2025 highlighted that extra virgin olive oil, especially varieties high in polyphenols, can significantly improve cardiovascular biomarkers. Starting the day with it may offer a concentrated dose to help manage lipid profiles.
  • Anti-Inflammatory Properties: The polyphenol compound oleocanthal in extra virgin olive oil has potent anti-inflammatory effects similar to ibuprofen. Regular consumption can help reduce markers of chronic inflammation, which is a risk factor for many diseases. A morning dose could help combat systemic inflammation throughout the day.
  • Weight Management: The monounsaturated fats in olive oil can promote a feeling of fullness and satiety, which may help curb cravings and reduce overall calorie intake later in the day. Taking it on an empty stomach may also help activate the metabolism.

Side Effects and Important Considerations

While generally safe, consuming olive oil straight on an empty stomach is not without potential downsides. Individuals with sensitive digestive systems may experience gastrointestinal discomfort, such as mild nausea, acid reflux, or diarrhea, particularly with larger servings. Starting with a small amount is often recommended to gauge tolerance before increasing the quantity.

Furthermore, it's crucial to remember that olive oil is calorie-dense. For individuals managing their weight, adding olive oil without reducing other caloric intake could lead to weight gain over time. It's best to consider it as a replacement for other less healthy fats rather than an addition to your diet.

Drinking vs. Cooking with Olive Oil: Is Timing a Factor?

Does consuming olive oil on an empty stomach provide a superior advantage over including it in meals? The consensus among many health experts is that the timing is less important than the consistent inclusion of high-quality olive oil in a balanced diet. However, there are nuances to consider.

Comparison: Drinking vs. Cooking EVOO

Feature Drinking EVOO on an Empty Stomach Using EVOO in Cooking/Meals
Absorption Proponents suggest faster, more direct absorption of nutrients. Absorption happens alongside other foods, which can sometimes enhance the absorption of fat-soluble vitamins (A, D, E, K).
Nutrient Preservation Maximum nutrient content is preserved since no heat is applied. Exposure to high heat can degrade some of the delicate polyphenols and antioxidants, especially in extra virgin olive oil.
Palatability Taste can be strong for some; often mixed with lemon juice or water. Easily incorporated into various recipes, from salad dressings to drizzling over finished dishes.
Digestive Impact May act as a gentle morning lubricant; potential for stomach upset in sensitive individuals. Generally well-tolerated when consumed with food; less risk of digestive shock.
Calorie Control A concentrated serving can impact daily calorie counts significantly if not accounted for. Spreading intake throughout the day as part of meals can make calorie management easier.

How to Incorporate Olive Oil for Maximum Benefits

For those who wish to try the empty-stomach approach, a common practice is to mix EVOO with a few drops of lemon juice. The lemon can help cut the oil's strong flavor and is believed to have its own digestive benefits due to its vitamin C content and potential to stimulate bile production. After taking the mixture, it's recommended to wait for a period before eating breakfast to allow for absorption.

For those who find the straight shot unappealing, there are many other effective ways to incorporate high-quality extra virgin olive oil into a daily routine. This includes using it as a salad dressing, drizzling it over roasted vegetables, or simply dipping bread in it. A balanced approach, focusing on consistent, moderate intake as part of a healthy diet, is the most scientifically sound strategy.

The Final Verdict

Ultimately, there is no conclusive evidence that taking olive oil on an empty stomach is significantly better than consuming it with meals throughout the day. The core benefits of olive oil—heart health, anti-inflammatory effects, and digestive support—are derived from its quality components, particularly the monounsaturated fats and polyphenols, regardless of the time of day it's consumed. Choosing a high-quality extra virgin olive oil is the most important factor for maximizing its health potential.

For those who enjoy the ritual and experience no adverse side effects, taking a serving in the morning can be a perfectly healthy habit. For others, integrating it into meals is a more palatable and equally effective approach. The key is moderation and listening to your body's individual needs. Before making any significant dietary change, it's always wise to consult with a healthcare professional, especially for those with pre-existing conditions like gallbladder issues. The most important takeaway is consistent, daily consumption of high-quality EVOO as part of a balanced diet, not the specific timing.

Conclusion

While a time-honored tradition suggests consuming olive oil on an empty stomach for amplified benefits, scientific evidence indicates that the health-promoting properties of olive oil are consistent whether taken in the morning or as part of meals. The rich monounsaturated fats and powerful antioxidants found in high-quality extra virgin olive oil support digestion, cardiovascular health, and combat inflammation regardless of timing. The decision rests on personal preference and digestive comfort, with moderation and consistency being the most critical factors for reaping this 'liquid gold's' nutritional rewards.

Frequently Asked Questions

Yes, drinking a moderate amount of extra virgin olive oil is generally safe for most healthy adults. However, some individuals with sensitive stomachs may experience mild digestive discomfort.

Combining olive oil with lemon juice can provide heart-healthy monounsaturated fats and antioxidants from the oil, along with vitamin C and potential bile-stimulating effects from the lemon, which aids digestion.

Yes, olive oil can act as a mild, natural lubricant in the digestive system, helping to soften stool and ease bowel movements. A small amount taken consistently is most effective for this purpose.

Olive oil is calorie-dense, and if you don't account for its calories, it could contribute to weight gain. It's best to replace other, less healthy fats in your diet with olive oil rather than simply adding it on top.

Yes, extra virgin olive oil is the highest quality, least processed form, retaining the most beneficial antioxidants and compounds. For maximum health benefits, EVOO is the recommended choice for raw consumption.

EVOO can be used for cooking at moderate temperatures, but its delicate polyphenols are best preserved when consumed raw, such as in dressings or as a finishing oil. For high-heat cooking, a refined olive oil or other oil with a higher smoke point may be more suitable.

While generally safe, it's always wise to consult with a healthcare professional before making significant dietary changes, especially if you are taking medications, as potential interactions can exist.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.