La Mediterranean diet It has been under scientific scrutiny for decades as one of the most comprehensive dietary patterns for maintaining a healthy heart, brain, and, increasingly, mood. However, in countries like Spain, where this lifestyle is almost part of the collective consciousness, daily reality takes a very different path.
While international studies continue to indicate that eat Mediterranean style It reduces chronic inflammation, lowers the risk of cardiovascular disease and can even help prevent depression; however, consumption data shows that Spaniards are moving away from this model and turning to ultra-processed products, which are quick to prepare but poor in nutritional quality.
Mediterranean diet and heart health: why science continues to rank it highly
In recent years, a extensive clinical and epidemiological research This has once again placed the Mediterranean diet among the best options for protecting the cardiovascular system. Leading institutions such as the Mayo Clinic and the U.S. National Library of Medicine highlight that following this pattern is associated with more stable blood glucose levelslower cholesterol and triglycerides and a reduced risk of heart disease and other metabolic problems.
The key mechanism lies in its powerful anti-inflammatory effectAs Mayo Clinic dietitian-nutritionist Janet McCann explains, occasional inflammation is not a problem, but when it becomes chronic it is linked to heart disease, diabetes type 2dementia and certain cancersA diet full of added sugars and bad fats fuels this inner fire; the Mediterranean diet does just the opposite.
This model is based primarily on vegetarian foodFruits, vegetables, legumes, nuts, seeds, and whole grains, along with extra virgin olive oil as the main fat. This is supplemented by moderate amounts of fish, especially oily fish, shellfish, fermented dairy products such as yogurt or kefir, and occasional consumption of eggs and lean meats.what to put on your plate).
Organizations such as the WHO and UNESCO Not only do they endorse this pattern, but the Mediterranean diet has been recognized since 2013 as an Intangible Cultural Heritage of Humanity, a seal that underlines that we are not just talking about a way of eating, but a lifestyle linked to the environment, sociability and the way of understanding health.
Longevity and healthy aging: the example of those who follow it to the letter
The connection between Mediterranean diet and longevity It's not just a matter of cold statistics. Professionals who research healthy aging, such as cardiologist Eric Topol, insist that this pattern is central to reaching advanced ages in good health and without the chronic diseases typical of old age.
Topol, who is over 70 years old, claims to have gone almost half a century without eating red meat and to follow a diet very close to the Mediterranean model, with abundance of vegetables, fruit, legumes, nuts, plants and fishespecially salmon and other species rich in healthy fats. It claims to be the only diet with robust support from long-term studies demonstrating clear health benefits.
Her daily routine is quite simple but very structured: she never skips breakfast, which usually revolves around Fat-free Greek yogurt with fruit, berries and granolaThroughout the day, he frequently resorts to... nuts as a snack, a concentrated source of plant-based protein, fiber, and heart-healthy fats.
At night, their signature dish is a complete salad which changes with the season: a base of leafy greens like lettuce and arugula, grated carrot, tomato, avocado, and, several times a week, baked fish added in chunks. Occasionally, cheese and other seasonal vegetables are added, from corn to various greens.
Although it maintains a very disciplined pattern, it also leaves room for some moderate enjoymentShe can have ice cream or cookies if she likes them, although she usually prefers dried fruit when she wants something sweet after dinner. However, she tries not to keep her "guilty pleasures," like tortilla chips, within easy reach to avoid falling into a habit of eating them.
The downside in Spain: increasingly distant from the Mediterranean diet
Despite this scientific backing, in Spain we love to boast about our sun, sea and Mediterranean traditionThe reality of what's on the table every day is increasingly different from what the guidelines recommend. A report by the Organization of Consumers and Users (OCU), which analyzed the eating habits of Spaniards between 2014 and 2023, paints a worrying picture of this shift.
According to this work, We eat worse than we did a decade ago.Far from filling our shopping baskets with fruits, vegetables, legumes, or fish, ready-to-heat prepared products are gaining ground: pre-cooked pizzas, frozen croquettes, packaged tortillas, instant noodles, or microwaveable lasagnas. These are very convenient foods, but with a poor nutritional profile.
The OCU estimates that the The intake of ultra-processed foods exceeds around 90%. This is considered acceptable from a health perspective. These products often contain high amounts of salt, added sugars, saturated fats, and additives, while displacing the fresh ingredients that characterize the Mediterranean diet.
Oncologists like Jesús García-Foncillas, director of the OncoHealth Institute of Oncology and president of the ECO Foundation, warn that this change in habits has direct consequences. He points out that, although Spain is a country of Mediterranean culture, a large part of the population does not follow the Mediterranean diet Not even close, something that is reflected in the figures for cancer and cardiovascular diseases.
Among the causes that explain this trend, specialists point to the fast pace of lifeLong working hours and a lack of time (or habit) to cook hearty dishes with legumes, vegetables, or whole grains often lead to a situation where people "grab the first thing they see and the quickest to prepare," which usually means opening a package and throwing it in the oven or microwave.
Ultra-processed foods, colon cancer, and chronic diseases on the rise
The impact of moving away from the Mediterranean diet is not limited to just a couple of extra kilos. According to data presented at the launch event of the New European Code Against Cancer In Madrid, more than 40% of tumors could be prevented by adopting healthy lifestyles and participating in screening programs.
El colon cancerCancer, closely linked to an unbalanced diet high in processed foods and red or processed meats, is the most common cancer in Spain and the second leading cause of cancer deaths globally. The Spanish Society of Medical Oncology (SEOM) estimates that more than 44.000 new cases were diagnosed in Spain alone in 2025.
García-Foncillas points to a particularly worrying trend: more and more diagnoses are being recorded in people under 50 years oldThis increase is largely linked to a generation that has grown up with high levels of consumption of ultra-processed foods since childhood.
Experts insist that, although returning to the Mediterranean diet in the strictest sense may seem complicated at the current pace, It is not an optional matter. If we want to curb the spread of diseases like colon cancer, type 2 diabetes, or cardiovascular disease, the key is to gradually replace ultra-processed products with fresh, minimally processed foods.
In this context, the call to recover something as simple as filling our plates more with food gains strength. legumes, vegetables, fruits, fish and olive oiland reserve prepared foods for very specific occasions. It's not about achieving unattainable perfection, but about tipping the scales towards the Mediterranean side most of the time.
From the gut to the brain: how the Mediterranean diet influences mood
Beyond the heart or the risk of cancer, research in recent years has focused on the relationship between Nutrition and mental healthThere is increasing evidence that depression is not solely dependent on psychological or social factors: what you eat daily can also make a difference.
To mark World Depression Day, specialists from CIBER, the Carlos III Health Institute and ISGlobal reminded everyone that maintaining healthy eating habits It can significantly reduce the likelihood of developing this disorder. In Spain, in 2023, almost 15% of the population over 15 years of age presented depressive symptoms, according to the INE (National Institute of Statistics), a figure that has been increasing since 2020.
Researchers like Almudena Sánchez emphasize that the diets based on fresh produce, vegetables and quality fats They have a protective effect, while diets rich in ultra-processed foods are associated with a higher risk of depression. This link is partly explained by the low-grade inflammation and oxidative stress generated by an unbalanced diet.
Nutritional psychologist Camille Lassale adds that multiple observational studies in different countries have shown that following a Mediterranean diet pattern It is associated with a lower risk of depression over time. It is not a miracle cure, but it is a significant factor in prevention and in supporting treatment.
One of the key points is the so-called gut-brain axisThe digestive system is the two-way communication pathway that connects the digestive system to the central nervous system. This pathway involves nerves, hormones, and, above all, the nervous system. intestinal microbiota, the set of microorganisms that live in the intestine and influence the production of neurotransmitters such as serotonin.
The “happiness diet”: microbiota, anti-inflammation and key nutrients
Dietitian and nutritional coach Mercedes Gállego reminds us that around 90% of serotoninCholesterol, a key neurotransmitter in mood regulation, is produced in the gut. Therefore, gut health is much more than just a digestive issue: it is closely linked to emotional stability and a sense of well-being.
When the microbiota is diverse and balanced, it promotes a more efficient communication between gut and braincontributing to better stress management and a more stable mood. Conversely, an impoverished gut flora, common in diets low in fiber and high in ultra-processed foods, is associated with low-grade inflammation and greater emotional vulnerability.
In this context, the Mediterranean diet, rich in fiber, antioxidants and healthy fatsIt fits like a glove. Dietary patterns rich in fruits, vegetables, legumes, whole grains, nuts, fish, and olive oil are consistently associated with fewer depressive symptoms and greater emotional well-being when maintained over time.
In addition to the overall anti-inflammatory properties of this diet, certain nutrients play a particularly important role. Among them, tryptophan, an amino acid from which the body makes serotonin, present in legumes, nuts, seeds, eggs, fish, fermented dairy products and whole grains, all typically Mediterranean foods.
They also highlight the omega-3 fatty acidsessential for the structure of neuronal membranes and the modulation of inflammation, present in oily fish and nuts such as walnuts, as well as Group B vitamins, magnesium, antioxidant polyphenols and probiotics and prebiotics that help maintain a healthy microbiota.
It's not just what we eat, but how we eat it: the Mediterranean lifestyle
One of the messages most frequently repeated by experts is that the Mediterranean diet is not simply a list of ingredients. It also includes a way of understanding food and lifestyle: time to cook, to sit at the table, to share and to eat mindfully.
The WHO itself and professionals like Janet McCann emphasize that this pattern is based on slow down and savor lifeEating in a hurry, in front of a screen, or with guilt, activates stress responses that interfere with digestion, satiety, and the enjoyment of food, which in the long run can affect both physical and emotional health.
Nutritionist Mercedes Gállego insists on recovering a a more conscious relationship with foodPay attention to hunger and satiety cues, savor flavors and textures, and don't treat each meal as a battle between "forbidden" and "allowed." These guidelines, combined with good food choices, can contribute to a more serene and satisfying experience of eating.
Another pillar of the Mediterranean style is the regular physical activityAlthough often overlooked, this traditional pattern has always gone hand in hand with a high level of physical activity: walking, running errands on foot, physically demanding work, or regular exercise. Evidence indicates that combining good nutrition with movement, sufficient rest, stress management, and strong social relationships is the most effective formula for preserving overall health.
Mental health specialists remind us that a balanced diet does not replace psychological therapy, medication when necessary, or attention to sleep or the social environment. But it does act as a complement. Silent and powerful base on which well-being is built, reducing the impact of depression and other pathologies.
The weight of scientific evidence, public health data in Spain, and the experience of clinicians and researchers all point in the same direction: The Mediterranean diet remains one of the most complete and protective models Healthy eating is good for the heart, gut, brain, and mood, but our current lifestyle has distanced us from it. Recovering, even gradually, its basic pillars—more fresh, plant-based foods, fewer ultra-processed foods, more time to cook and eat slowly, and more daily movement—is not just a matter of culinary nostalgia, but a real and accessible strategy for most people to curb chronic inflammation, reduce the risk of cancer and depression, and maintain a better quality of life in the long term.
