Research shows that Swiss people eat significantly more red meat and dairy than recommended by the planetary health diet, while consuming far too little whole grains, legumes, and nuts. According to Gram Research analysis of 2,057 Swiss residents, zero percent met whole grain recommendations and zero percent met legume recommendations, though 97.7% ate appropriate amounts of starchy vegetables. Shifting toward more plant-based foods would improve health and reduce environmental impact.
A major study of over 2,000 Swiss people found that the average Swiss diet doesn’t match what scientists recommend for a healthy planet and healthy bodies. According to Gram Research analysis, Swiss residents eat too much red meat, dairy, and sugar while eating too few vegetables, whole grains, and nuts. The research shows that if Swiss people shifted toward more plant-based foods and less animal products, they could improve their health and reduce damage to the environment. The study also found that women and people following healthier eating patterns were closer to the recommended diet than men and those eating traditional Western-style foods.
Key Statistics
A 2026 cross-sectional study of 2,057 Swiss residents found that zero percent of participants met the recommended intake of whole grains and legumes, while only 5.1% consumed enough nuts according to the planetary health diet guidelines.
According to research reviewed by Gram analyzing Swiss dietary data from 2014-2015, diets lower in animal-source products showed reduced greenhouse gas emissions and land use compared to meat-heavy diets, though plant-based diets tended to have higher food costs.
A study of 2,057 Swiss people found that 97.7% met recommendations for starchy vegetables and 99.9% stayed within saturated fat limits, but the average Swiss diet exceeded recommendations for red meat, dairy products, and added sugar.
Research on 2,057 Swiss residents showed that women and people following prudent dietary patterns adhered more closely to the planetary health diet than men and those eating traditional or Western-style diets.
The Quick Take
- What they studied: How well Swiss people’s actual eating habits match the ‘planetary health diet’ — a scientifically designed eating plan that’s good for both human health and the environment
- Who participated: 2,057 people living in Switzerland who participated in a national nutrition survey between 2014 and 2015. Researchers tracked what they ate for 24 hours and looked at differences between men and women and different regions
- Key finding: Almost nobody in Switzerland follows the recommended amounts for whole grains (0%), legumes like beans (0%), and nuts (only 5.1%), while nearly everyone eats the right amount of starchy vegetables and keeps saturated fat low. The biggest problem is eating too much meat and dairy
- What it means for you: If you live in Switzerland or eat a similar diet, eating less meat and more plants could make you healthier and help the environment. This is especially important for men and people who eat traditional Western diets, who have the most room for improvement
The Research Details
Researchers used data from menuCH, a large Swiss nutrition survey conducted in 2014-2015 that included 2,057 people. Each participant reported everything they ate in a 24-hour period, and researchers used special methods to figure out what people typically eat over time rather than just one day.
The team then compared what Swiss people actually ate to the ‘planetary health diet’ — a reference diet created by the EAT-Lancet commission in 2019 that balances human nutrition with environmental sustainability. They measured how well people followed this diet and calculated the environmental impact of different eating patterns by looking at greenhouse gas emissions, land use, water use, and social impacts.
The researchers also broke down the results by sex (male and female), language region (French, German, Italian-speaking areas), and dietary pattern type (traditional, Western, prudent, and health-conscious) to see if different groups ate differently.
This research approach is important because it shows real-world eating habits rather than what people say they should eat. By comparing actual diets to a scientifically-designed healthy diet, the study reveals exactly where Swiss eating patterns fall short. Measuring environmental impacts alongside health impacts shows that what’s good for your body is often also good for the planet
This is a well-designed population study that included a large, representative sample of Swiss people. The study used detailed dietary recall methods and established statistical techniques. However, because it’s based on data from 2014-2015, eating habits may have changed since then. The study is descriptive rather than experimental, meaning it shows what people eat but can’t prove that changing diets will definitely improve health or the environment
What the Results Show
The research revealed a significant gap between what Swiss people eat and what the planetary health diet recommends. Swiss residents consumed far too much red meat, dairy products, and added sugar compared to recommendations. At the same time, they ate much less whole grains, vegetables, legumes (beans and lentils), nuts, and healthy unsaturated fats than recommended.
The adherence numbers were striking: zero percent of Swiss people ate the recommended amount of whole grains, zero percent ate the recommended amount of legumes, and only 5.1% ate enough nuts. In contrast, 97.7% of people ate appropriate amounts of starchy vegetables like potatoes, and 99.9% kept their saturated fat intake within recommended limits.
When researchers looked at environmental impacts, they found that diets with fewer animal products had lower greenhouse gas emissions and used less land. However, diets with more fruits and vegetables tended to cost more money and sometimes had higher risks of negative social impacts in terms of how food was produced.
The study also found important differences between groups. Women followed the planetary health diet more closely than men, and people eating a ‘prudent’ dietary pattern (which emphasizes whole foods and limits processed foods) were closer to the recommendations than those eating traditional or Western-style diets.
The research identified that the biggest opportunities for improvement were among men and people following traditional or Western dietary patterns, as these groups had the most significant gaps between their current eating habits and the recommended diet. The study also showed that while environmental benefits from eating less meat were clear, the economic and social trade-offs of shifting to more plant-based diets need to be considered. Different regions of Switzerland (French, German, and Italian-speaking areas) showed some variation in dietary patterns, though the overall patterns were similar
This study builds on the 2019 EAT-Lancet commission’s planetary health diet framework, which was a landmark effort to define a universal diet that supports both human health and environmental sustainability. The Swiss findings align with similar research from other developed countries showing that Western diets contain too much animal protein and processed foods. The study confirms what other research has shown: that plant-based diets generally have lower environmental impacts than meat-heavy diets
The study used dietary data from 2014-2015, so eating habits may have changed in the past decade. The research is observational, meaning it shows associations but can’t prove cause-and-effect relationships. The study relied on people’s memory of what they ate, which can be inaccurate. Additionally, the environmental impact calculations are estimates based on average data and may not reflect specific local farming practices. The study doesn’t account for individual health conditions that might require different diets
The Bottom Line
High confidence: Eat less red meat and dairy products. Moderate confidence: Increase consumption of whole grains, legumes (beans, lentils, chickpeas), nuts, and vegetables. The evidence strongly supports that this shift would improve both personal health and environmental sustainability. Policy makers should create incentives like lower prices for plant-based foods and education campaigns, especially targeting men and people eating traditional Western diets
This applies to anyone eating a typical Swiss or Western diet who wants to improve their health and reduce their environmental impact. It’s especially relevant for men and people following traditional or Western dietary patterns. People with specific medical conditions should consult their doctor before making major dietary changes. The findings are most relevant to Switzerland but apply broadly to other developed countries with similar eating patterns
Health benefits like improved cholesterol and blood pressure can appear within weeks to months of dietary changes. Weight loss, if applicable, typically takes 4-8 weeks to become noticeable. Environmental benefits from reduced meat consumption are immediate in terms of your personal footprint, though global environmental impacts would require widespread adoption. Long-term health benefits accumulate over years
Frequently Asked Questions
What is the planetary health diet and why does it matter?
The planetary health diet is a scientifically-designed eating plan created in 2019 that balances human nutrition with environmental sustainability. It recommends eating mostly plants, whole grains, legumes, nuts, and vegetables while limiting red meat, dairy, and processed foods. It matters because research shows it can improve health and reduce environmental damage from food production.
How much meat should Swiss people actually eat according to this research?
The study doesn’t specify exact amounts but shows Swiss people eat too much red meat and dairy compared to the planetary health diet recommendations. The research suggests significantly reducing these foods and replacing them with plant-based proteins like legumes, nuts, and whole grains for better health and lower environmental impact.
Will eating less meat and more plants really help the environment?
Yes. The study found that diets with fewer animal products have lower greenhouse gas emissions and use less land. Meat and dairy production requires more resources and generates more emissions than plant-based foods. Widespread dietary shifts toward more plants would meaningfully reduce individual and collective environmental footprints.
Is the planetary health diet more expensive than what Swiss people eat now?
The research found that diets with more fruits and vegetables tend to cost more money. However, this doesn’t mean healthy eating is always expensive — legumes, whole grains, and seasonal vegetables can be affordable. The cost barrier is real but can be addressed through policy changes and smart shopping strategies.
Who needs to change their diet the most according to this study?
Men and people following traditional or Western dietary patterns have the biggest gap between their current eating habits and the planetary health diet recommendations. These groups would benefit most from eating less meat and dairy while increasing plant-based foods like legumes, whole grains, nuts, and vegetables.
Want to Apply This Research?
- Track daily servings of legumes, whole grains, nuts, and vegetables against the planetary health diet targets. Measure weekly red meat and dairy consumption to monitor reduction progress
- Set a specific goal like ‘Meatless Monday’ or ‘reduce red meat to 2 days per week’ and use the app to log plant-based meals. Create a shopping list based on planetary health diet recommendations and check items off as you buy them
- Weekly review of adherence to each food group recommendation. Monthly tracking of environmental impact estimates (carbon footprint, land use). Quarterly assessment of overall dietary pattern shift with comparison to baseline
This research describes dietary patterns and their environmental impacts based on observational data from 2014-2015. It does not constitute medical advice. Individual nutritional needs vary based on age, health status, activity level, and medical conditions. Before making significant dietary changes, especially if you have existing health conditions, consult with a healthcare provider or registered dietitian. The environmental impact calculations are estimates and may not reflect your specific local food sources or farming practices. This study shows associations but cannot prove that dietary changes will definitely produce the health or environmental benefits described.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.