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A narrative review in Applied Sciences examines why urban routines, affordability and convenient ultra-processed foods can make the Mediterranean diet harder to follow. It describes promising results from workplace and school interventions, but its literature selection was not systematic and the review cannot establish that diet changes caused national disease trends.
A review published in the journal Applied Sciences finds that long working hours, food costs and reliance on convenient meals can make the Mediterranean diet and lifestyle harder to maintain. Researchers from institutions in Portugal and Spain surveyed prior studies and described workplace and school programs associated with improved diet measures, while warning that their review was not a systematic evidence assessment.
The review considers the Mediterranean pattern as more than a list of foods. Its central foods include vegetables, fruits, legumes, nuts, whole grains and olive oil, with more modest amounts of fish, dairy and eggs and little red meat. The authors also discuss physical activity and communal meals as parts of the traditional lifestyle. They describe wine consumption as a cultural practice, not a health recommendation.
The authors say time pressure, limited physical activity and convenience-oriented food environments are among the factors that complicate adherence, especially for urban, younger and lower-income groups. They cite a comparison in which ultra-processed foods cost $0.55 per 100 calories and unprocessed foods cost $1.45 per 100 calories. The figures are from a cited comparison; the review does not establish that this price difference applies in every place or at every point in time.
Some interventions reviewed reported improved diet-related measures. In one workplace study, 96 male workers who ate Mediterranean-style canteen lunches for 12 months saw their diet score rise from 4.8 to 7.4; the share classified as having metabolic syndrome fell from 24% to 15.6%. A U.S. trial involving 485 firefighters reported a 10% improvement in adherence after a package of supermarket discounts, samples, online education and chef demonstrations. A Cyprus program for 150 sixth-graders combined food tasting and cooking lessons and reported better nutrition knowledge and diet-quality scores.
Making Healthy Meals Fit Daily Life
The review shifts attention from individual food choices to the conditions that shape them. If people have little time to cook, limited budgets or few convenient nutritious options, advice to follow a particular eating pattern may be difficult to put into practice. The interventions discussed suggest that workplaces, schools and food retailers can influence access and habits, although the examples do not prove that one approach will work equally well in other settings.
The issue matters beyond Mediterranean countries because the barriers described—busy schedules, affordability and ready-to-eat food—are common across urban settings. The review cites global estimates of rising overweight and limited access to healthy diets, but it does not test a new intervention or demonstrate a direct cause-and-effect link between modern routines and disease. Its practical message is that food environments and everyday routines may need attention alongside nutrition guidance.
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How the Review Assessed Diet Barriers
The research team included scientists from Bragança Polytechnic University, the University of Vigo, the Galicia Sur Health Research Institute and the Polytechnic University of Guarda. They searched PubMed, Web of Science, ScienceDirect and Google Scholar between October 2024 and December 2025, using terms on the Mediterranean diet, adherence, lifestyle, ready-to-eat foods and ultra-processed products. The review emphasized recent English-language research while also including older work.
The authors assembled a final reference list of 116 sources, including journal articles, book chapters and online resources. They organized material on the diet’s foods and nutrients, lifestyle habits, adherence measures such as the MEDLIFE Index, and possible interventions. They also examined World Health Organization data on noncommunicable disease mortality in several Mediterranean countries from 1960 to 2020.
This is a narrative review, not a trial measuring the effect of a single program. The authors report that they did not use predefined exclusion criteria or a systematic screening protocol. That makes the selection of studies open to bias and means the findings should be read as a survey of relevant evidence, rather than a definitive ranking of interventions.
“The traditional Mediterranean way of eating is becoming harder to sustain amid modern urban lifestyles.”
— The review authors
Limits in the Evidence Base
The review does not establish that changing diets caused changes in disease rates. It notes that population aging and other risk factors could help explain increases in noncommunicable disease mortality in some Mediterranean countries. The reported intervention results also come from distinct populations and program designs, so they cannot show which element produced the reported changes or whether the results would persist over time.
The authors’ open-ended study selection is another limitation: there was no predefined exclusion framework or systematic screening process. The review therefore may not include all relevant evidence, and its conclusions are subject to selection bias. The source material does not provide enough detail to assess the longer-term outcomes of all the programs discussed or the cost and feasibility of scaling them up.
Turning Findings Into Local Programs
The review proposes adapting food and lifestyle strategies to contemporary settings, including workplace and school food environments, convenient ready-to-eat options and ways to encourage everyday movement. The examples it surveys point to possible approaches such as healthier canteen meals, discounts, cooking lessons and food tasting, but they are not a single tested package for general use.
No new trial or policy change is announced in the review. Further research would need to compare interventions using consistent measures, track outcomes over longer periods and examine whether programs remain affordable and effective across income groups. For now, the clearest finding is that diet adherence depends in part on the conditions in which people shop, work, eat and move.
Key Questions
What is the Mediterranean diet?
It is an eating pattern centered on plant foods, olive oil, legumes, nuts and whole grains, with moderate amounts of fish, dairy and eggs and little red meat. The review also discusses communal meals and physical activity as parts of the broader lifestyle.
What makes the diet harder to follow today?
The review points to long working hours, limited time to cook, food costs and convenient ultra-processed options. It also describes lower adherence among groups facing stress, low physical activity or lower incomes.
Did the review test a new diet program?
No. It is a narrative review of existing research, not a new clinical trial. It summarizes prior workplace, firefighter and school programs that reported improvements in diet-related measures.
Does the review prove that the Mediterranean diet prevents disease?
No. The review discusses prior evidence and disease trends but does not establish that diet changes caused national mortality patterns. The authors note that aging and other risk factors may also affect those trends.
Source: news-medical.net
