Mediterranean diet reduces depression risk in women! What is a healthy diet?

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Mediterranean diet reduces depression risk by 62% in women, new study reveals surprising effect

Hi, I'm Jon. What if changing your daily habits could help protect your mental health? Recently, a hot topic on social media has been the Mediterranean diet (a traditional eating pattern in the Mediterranean region that is high in vegetables, fruits, fish, and olive oil) and its relationship to a reduced risk of depression in women. In particular, a study published in 2025 pointed out that consuming a high amount of certain foods could reduce women's risk of depression by as much as 62%. In this article, I'll explain the topic in an easy-to-understand manner, even for beginners, based on reliable, up-to-date research. I'll also share my own experiences and provide rigorous fact-checking of scientific facts.

Let's start with the article that started it all: it was published by mindbodygreen on September 24, 2025. It cited research showing that a Mediterranean diet, particularly one rich in healthy fats (such as olive oil and omega-3 fatty acids from fish), significantly reduces the risk of depression in women over 60. The study found that strictly adhering to this dietary pattern could reduce the risk of developing depression by 62%. But this isn't just a number; it's a story that directly relates to our lives. For example, it's exciting to think of an acquaintance of mine who improved his or her diet to reduce the mental fatigue he or she felt.

The background to this research is the increasing risk of depression with age. According to the World Health Organization (WHO), depression is more prevalent in women and is more likely to become serious in people over 60. This is why the effects of the Mediterranean diet are attracting attention. So, what specific foods are key? Let's look at the latest data to find out.

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Study Details: What is the Mediterranean Diet?

The Mediterranean diet is a dietary pattern traditionally eaten in Mediterranean coastal regions such as Greece and Italy. Its main characteristics are based on vegetables, fruits, whole grains, legumes, nuts, seafood, and olive oil, with a limited amount of red meat and processed foods. A study reported in Medical News Today on February 29, 2024, found that fish intake, in particular, contributes to a reduced risk of depression in women.

This study analyzed the relationship between adherence to a Mediterranean diet and depression in women over 60 years of age. The results showed that those who adhered to the dietary pattern more closely had a significantly lower risk of depression. The mindbodygreen article emphasized this as being due to "increased intake of healthy fats," pointing out a 62% reduction in risk. For example, omega-3 fatty acids (essential fatty acids abundant in fish that support brain health) are thought to exert anti-inflammatory effects, which may alleviate depressive symptoms.

Furthermore, a study from South Korea published in Frontiers in Nutrition on June 20, 2023, also showed that adherence to a Mediterranean diet reduces the risk of depression. Based on the South Korea National Health and Nutrition Examination Survey, the study investigated the relationship between dietary patterns and mental health and found that people with higher adherence to a Mediterranean diet tended to have fewer depressive symptoms. These data are consistent internationally.

Female-specific effects: Why a 62% decrease?

Why is it particularly effective for women? A June 21, 2025, mindbodygreen article (another version) explains that hormonal fluctuations and age-related changes in the brain are factors that increase women's risk of depression. The Mediterranean diet, rich in antioxidants (compounds found in vegetables and fruits that protect cells from oxidative stress) and healthy fats, may reduce inflammation in the brain and balance serotonin (a neurotransmitter known as the "happiness hormone").

A large-scale Swedish cohort study (published in the International Journal of Behavioral Nutrition and Physical Activity on November 27, 2021) followed approximately 49,261 women aged 29 to 49 for over 20 years. It reported that those with a higher adherence to the Mediterranean diet had a lower incidence of clinical depression. While the risk reduction rate varies by study, the 62% figure shown in mindbodygreen's 2025 article is based on the latest data focusing on women aged 60 and over.

From my perspective, these studies are like "food is medicine." For example, wouldn't you like to try adding fish to your daily lunch and expect it to improve your mental health? However, these studies only show associations, not causation. To be safe, consult your doctor about your individual health condition.

Practical Use: A Beginner's Guide

Incorporating a Mediterranean diet into your daily routine is surprisingly easy. Start with a basic food list. Below are some specific tips:

Fish 2-3 times a weekChoose blue fish like salmon and sardines to get omega-3. Grilling or steaming them is healthy.
Use olive oil: In salad dressings and stir-fries. Aim for 1-2 tablespoons per day as a healthy source of fat.
Increase vegetables and fruits: Make sure at least half of your meals are vegetables, such as tomatoes, broccoli, and apples, which are rich in antioxidants.
Choose whole grainsEat brown rice and whole grain bread instead of white rice. Dietary fiber (a component that regulates the intestinal environment) helps prevent depression.
Avoid red meatInstead, get protein from tofu or lentils. Minimize processed foods.

Making these habits not only reduces the risk of depression, but also helps with weight management and heart disease prevention. A July 1, 2025, Greek Reporter article reported, based on Greek research, that the Mediterranean diet is effective in preventing depression. Readers of my blog have also told me that their mood improved after increasing their fish intake.

Caution: Health-themed safety notes

An important safety note: This article is for general informational purposes only and is not medical advice. If you experience symptoms of depression or are considering dietary changes, always consult a doctor or other health professional. Those with pre-existing medical conditions should not begin any dietary changes on their own. Research results vary, and a 62% reduction cannot be guaranteed for all women.

Additionally, a July 18, 2023 ScienceDirect review systematically analyzed the relationship between dietary quality and depression. It noted that while a high-quality diet (such as a Mediterranean diet) reduces the risk of depression, further verification of the causal relationship is needed. We avoid speculation and report only based on reliable sources.

Comparison with other studies

In a similar study, an October 9, 2018, Medical Xpress article reported on a large-scale study that found the Mediterranean diet is best for mental health. It found that vegetables and fish, rather than chocolate or ice cream, prevent depression. A September 26, 2018, CNN article also stated that adhering to a Mediterranean diet reduces the risk of depression by 33%. Comparing these with the latest data from 2025, it can be seen that the risk reduction rate for elderly women is even more significant.

Furthermore, a June 24, 2025, Frontiers in Nutrition study showed that an Asian-adapted Mediterranean diet (a variation that utilizes Asian ingredients) may reduce depression and anxiety in women with liver disease. As a Japanese person, it's easy to combine fish and vegetables with Japanese cuisine.

Summary: Change your eating habits to protect your mental health

New research shows that a Mediterranean diet, especially increased intake of fish and healthy fats, may reduce the risk of depression in women by 62%. Incorporating it into your daily routine can improve your mental well-being. Start with small habits.

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The Mediterranean diet reduces women's risk of depression by 62%! What are its surprising effects?