Can Mediterranean Diet Cause Diarrhea?

Can Mediterranean Diet Cause Diarrhea?

Last Update:

Publish Date:


Discover the secrets of the Mediterranean diet and its numerous health benefits, but beware of potential side effects like diarrhea.

Learn how to prevent and treat it while enjoying the advantages of this lifestyle choice.

Key Takeaways:

  1. Mediterranean diet is renowned for its health benefits, emphasizing fruits, vegetables, whole grains, healthy fats, and lean proteins.
  2. Diarrhea can occur when transitioning to this diet due to factors like increased fiber intake and changes in fat types.
  3. Symptoms may include loose stools, abdominal discomfort, and increased bowel urgency, but they often improve as the body adjusts.
  4. High fiber intake, legumes, and whole grains can contribute to diarrhea, so introduce fiber slowly and stay hydrated.
  5. Temporary treatments include hydration, the BRAT diet, probiotics, adjusting fiber intake, and avoiding irritants.
  6. Seek medical attention for prolonged, severe symptoms, presence of blood, or unexplained weight loss.
  7. Adapting to a new diet takes time, so be patient and listen to your body while enjoying the Mediterranean diet’s health benefits.

Share This Post:

What is the Mediterranean Diet?

The Mediterranean diet, a nutritional model inspired by the traditional dietary patterns of countries bordering the Mediterranean Sea, is widely acclaimed for its health benefits.

This diet is characterized by:

  • Diverse Fruits and Vegetables: A cornerstone of the diet, offering a wide range of vitamins, minerals, and antioxidants. Regular consumption of a variety of produce, such as leafy greens, tomatoes, and berries, contributes to reduced inflammation and better overall health.
  • Whole Grains: Integral to the diet, these grains, including quinoa, brown rice, and whole wheat, provide essential fiber and nutrients, aiding in digestion and promoting a feeling of fullness.
  • Healthy Fats: Unlike diets high in saturated fats, the Mediterranean diet focuses on fats that are good for heart health, particularly omega-3 fatty acids found in olive oil, nuts, and seeds.
  • Lean Proteins: Prioritizing fish and poultry over red meats, this diet ensures adequate protein intake without the excess saturated fats found in heavier meats.
  • Limited Red Meat and Processed Foods: By minimizing the intake of processed foods and red meats, the diet aligns with a more natural, unprocessed food consumption pattern, which is beneficial for long-term health.

This diet also emphasizes the enjoyment of meals with family and friends, making it not just a diet, but a lifestyle choice.

Its popularity stems from its proven effectiveness in promoting heart health, aiding weight management, and reducing the risk of chronic diseases.

Can the Mediterranean Diet Cause Diarrhea?

Although the Mediterranean diet is celebrated for its numerous health benefits, it is not without potential side effects, diarrhea being one of them.

This condition, particularly prevalent in individuals who are new to the diet, can be attributed to several factors:

  • High Fiber Content: A drastic increase in fiber, especially for those previously consuming a low-fiber diet, can lead to gastrointestinal distress, manifesting as diarrhea.
  • Change in Fat Types: The shift from saturated to healthier unsaturated fats, like those found in olive oil and avocados, can sometimes disrupt normal digestive processes.
  • Introduction of New Foods: Introducing a variety of new foods to the body all at once can sometimes result in digestive upset as the body adapts to these changes.

It’s important to note that while the Mediterranean diet can cause diarrhea in some individuals, this is not a universal experience and often resolves as the body adjusts to the new diet.

Lose Weight With Danish Diet

Lose Weight With Danish Diet

Discover the Danish Diet, a proven path to shedding pounds and enhancing your well-being. This popular weight loss regimen, inspired…


When transitioning to the Mediterranean diet, some individuals may experience symptoms that include:

  • Frequent, Loose Stools: This is the most common symptom, characterized by an increase in bowel movements and a change in stool consistency.
  • Abdominal Discomfort: Accompanying the change in bowel habits, one might experience bloating, cramps, or generalized abdominal pain.
  • Increased Bowel Urgency: The need to have a bowel movement may become more urgent and frequent.

These symptoms can vary in intensity from person to person and often diminish as the body becomes accustomed to the new dietary pattern.


Understanding the causes is key to managing and preventing this side effect:

  • High Fiber Intake: The Mediterranean diet significantly upscales the intake of fiber-rich foods. While fiber is essential for digestive health, a sudden increase can overstimulate the intestines, leading to diarrhea.
  • Introduction of Legumes and Whole Grains: These components of the diet, though healthy, can cause increased gas production and bowel movement frequency in some individuals.
  • Adjustment Period for Gut Flora: The diet introduces a variety of prebiotic and probiotic foods, which can alter the gut microbiota. This change, though beneficial in the long run, might initially result in digestive discomfort.

By understanding these causes, individuals can better manage their transition to the Mediterranean diet, reducing the likelihood or severity of diarrhea as a side effect.

13 Tofu Recipes for Mediterranean Diet

13 Tofu Recipes for Mediterranean Diet

Dive into the world of Tofu Recipes for Mediterranean, where health meets flavor in just minutes! Discover the benefits of…

How to Prevent?

Preventing diarrhea while following the Mediterranean diet involves gradual dietary changes and mindful eating habits. Here are some effective strategies:

  1. Introduce Fiber Slowly: Given that a rapid increase in fiber is a common cause of diarrhea, start by gradually adding fiber-rich foods to your diet. This allows your digestive system to adapt without causing distress.
  2. Stay Hydrated: High fiber intake necessitates increased water consumption to help fiber move through the digestive system efficiently. Aim for at least 8 glasses of water a day.
  3. Moderate Fat Intake: While healthy fats are a staple of the Mediterranean diet, overconsumption can lead to digestive issues. Balance your intake of olive oil, nuts, and fatty fish.
  4. Mindful Portion Sizes: Overeating, even of healthy foods, can stress the digestive system. Practice portion control to avoid overwhelming your gut.
  5. Listen to Your Body: Pay attention to how different foods affect you. If certain items consistently cause discomfort, consider reducing their intake or preparing them differently.

These proactive measures can significantly reduce the likelihood of experiencing diarrhea and help you enjoy the full benefits of the Mediterranean diet.

How to Treat?

If you experience diarrhea while on the Mediterranean diet, consider the following treatments:

  1. Hydration is Key: Diarrhea can lead to dehydration. Replenish lost fluids by drinking plenty of water, herbal teas, and clear broths.
  2. BRAT Diet: Temporarily adopting the BRAT diet (Bananas, Rice, Applesauce, Toast) can help stabilize your digestion. These foods are bland and easy to digest.
  3. Incorporate Probiotics: Eating probiotic-rich foods like yogurt or taking supplements can help balance your gut flora, aiding in digestion and potentially alleviating diarrhea.
  4. Adjust Fiber Intake: If high fiber intake is the cause, temporarily reducing fiber-rich foods can provide relief. Gradually reintroduce these foods once symptoms subside.
  5. Avoid Irritants: Limit or avoid caffeine, alcohol, and spicy foods, as they can exacerbate digestive issues.

Remember, these are temporary measures. Once your symptoms improve, you can gradually return to the typical Mediterranean diet pattern.

Naan Bread on Mediterranean Diet

Naan Bread on Mediterranean Diet

Naan bread can happily coexist with the Mediterranean diet, given you choose whole wheat options and practice portion control. It's…

When to See a Doctor?

While mild diarrhea can often be managed at home, there are circumstances where medical intervention is necessary:

  1. Prolonged Symptoms: If diarrhea persists for more than a few days, it’s important to consult a healthcare provider.
  2. Severe Symptoms: Severe pain, dehydration signs (like reduced urination or dizziness), or high fever warrant immediate medical attention.
  3. Presence of Blood: Blood in the stool is a sign that something more serious may be occurring and requires a doctor’s evaluation.
  4. Unexplained Weight Loss: If you experience significant weight loss along with diarrhea, seek medical advice as it could indicate an underlying health issue.

It’s important to listen to your body and not hesitate to seek professional help when symptoms are severe or prolonged.


The Mediterranean diet, while highly beneficial, can lead to temporary digestive issues like diarrhea.

This is often due to a sudden increase in fiber or changes in fat consumption.

By understanding the causes and implementing gradual dietary changes, along with proper hydration, these issues can often be mitigated.

If symptoms persist, it’s important to seek medical advice.

Remember, adapting to a new diet takes time, and listening to your body is key to a smooth transition.

The Mediterranean diet offers a plethora of health benefits, and with the right approach, can be a sustainable and enjoyable way to maintain good health.

Ana Lazic Avatar

Related Posts: