Packaging design and how food information is presented have the strongest influence on whether people buy and eat plant-based foods, according to a 2026 research study published in PLOS ONE. Researchers found that practical packaging features matter more than personal attitudes or cultural factors when it comes to purchase decisions. The study identified seven factors affecting plant-based food choices, with packaging functionality ranking first, followed by individual nutritional needs and food information clarity. This means food companies can encourage healthier eating by improving how they package and present plant-based products.
A new study reveals what actually convinces people to buy and eat more plant-based foods. Researchers found that packaging design and how food information is presented matter more than you’d think—even more than personal beliefs about healthy eating. The study looked at seven different factors that influence shopping choices, from the way packages look to how environmentally friendly they are. According to Gram Research analysis, the strongest influence comes from practical packaging features, followed by what individual people need nutritionally. This research helps food companies and health officials understand how to encourage healthier eating habits through smarter product design and marketing.
Key Statistics
A 2026 research study published in PLOS ONE found that packaging functional attributes had the strongest influence on plant-based food purchases, outweighing personal attitudes and cultural factors combined.
According to the 2026 PLOS ONE study, all seven examined factors—including packaging design, food information, consumer needs, and environmental considerations—positively influenced purchase intention for plant-based foods, though with varying strengths.
The research revealed that external product factors like packaging collectively had stronger influence on purchase decisions than internal consumer factors like personal beliefs and attitudes toward plant-based foods.
A 2026 pilot study found that individual consumer nutritional requirements had weaker direct effects on healthy eating behavior compared to their influence on purchase intention, suggesting a chain effect where buying plant-based foods leads to eating them regularly.
The Quick Take
- What they studied: What factors influence whether people buy plant-based foods and actually eat them regularly?
- Who participated: The study examined seven interconnected factors affecting consumer choices, though specific participant demographics were not detailed in the abstract.
- Key finding: Packaging design and functionality had the strongest influence on purchase decisions, outweighing personal attitudes and cultural factors. All seven studied factors positively influenced buying choices, but with different strengths.
- What it means for you: When shopping, you’re influenced more by how food is packaged and presented than you might realize. Food companies can use better packaging and clearer information to help you make healthier plant-based choices. However, remember that your own needs and preferences still matter—packaging alone won’t change eating habits without your interest.
The Research Details
Researchers combined three different scientific theories to understand plant-based food purchases: the Theory of Planned Behavior (which looks at how attitudes affect choices), Information Processing Theory (how people use information to decide), and Sensory Marketing Theory (how our senses influence buying). They created a mathematical model examining seven key factors: what consumers think about plant foods, cultural and social influences, individual nutritional needs, how eco-friendly the packaging is, the experience value people perceive, the quality of food information provided, and the practical features of packaging itself.
The study used structural equation modeling, a statistical technique that shows how different factors connect and influence each other. This approach allowed researchers to see not just whether factors matter, but how strongly each one affects purchase decisions and actual eating behavior. The researchers tested whether their proposed connections between these factors were accurate by analyzing real-world data.
Understanding what drives plant-based food purchases is crucial because many people want to eat healthier but struggle to follow through. By identifying which factors have the strongest influence, food companies can focus their efforts on what actually works. This research also shows that external factors (like packaging) sometimes matter more than internal factors (like personal beliefs), which is surprising and important for designing effective marketing strategies.
This is a pilot study, meaning it’s an early-stage investigation designed to test methods before larger research. The study was published in PLOS ONE, a peer-reviewed scientific journal, which means other experts reviewed the work. The use of structural equation modeling is a sophisticated statistical approach that strengthens the findings. However, the abstract doesn’t specify the sample size or participant demographics, which limits our ability to assess how broadly these findings apply to different populations.
What the Results Show
All seven factors studied had positive effects on purchase intention, but they didn’t all have equal strength. Packaging functional attributes (how well the package works and what it does) emerged as the strongest driver of purchase decisions. Individual consumer requirements (what people personally need nutritionally) came in second, followed by food information factors (how clearly nutrition and benefits are explained). These three factors had the most powerful influence on whether someone decides to buy plant-based foods.
The next tier of influence included perceived experiential value (how enjoyable or satisfying people expect the food to be), consumer attitude (what people think about plant-based foods), and packaging environmental considerations (how eco-friendly the packaging is). These three had moderate but still significant effects. Interestingly, socio-cultural environment (cultural and social pressures) had the weakest influence on purchase decisions, suggesting that personal factors matter more than peer pressure or cultural norms.
A particularly important finding was that external product factors (packaging and presentation) collectively had stronger influence than internal consumer factors (personal beliefs and attitudes). This suggests that how food is packaged and marketed can sometimes overcome personal hesitations about plant-based foods.
The research revealed a two-step process for how these factors influence actual eating behavior. Some factors directly encourage healthy eating habits, while others work indirectly through purchase intention. Notably, individual consumer requirements had a weaker direct effect on healthy eating behavior compared to their effect on purchase intention. Instead, the pathway works like a chain: personal needs influence what people buy, and then buying plant-based foods leads to eating them regularly. This ‘chained transmission’ suggests that getting people to purchase plant-based foods is an important intermediate step toward establishing healthy eating habits.
This research extends the Theory of Planned Behavior, a well-established framework that explains how attitudes, social norms, and perceived control influence behavior. Previous studies focused mainly on consumer attitudes and beliefs, but this research shows that external product design factors deserve equal or greater attention. The integration of Sensory Marketing Theory and Information Processing Theory represents a more comprehensive approach than earlier studies, acknowledging that how information is presented and how products appeal to our senses significantly influence decisions.
The study is described as a pilot study, which means it’s preliminary research. The abstract doesn’t specify how many people participated or provide detailed demographic information about participants, making it unclear whether findings apply equally to all age groups, income levels, or cultural backgrounds. Without knowing the sample size, we can’t fully assess the statistical reliability of the results. The research focuses specifically on plant-based foods, so findings may not apply to other food categories. Additionally, the study measures purchase intention and self-reported behavior rather than actual long-term eating patterns, which may differ from real-world behavior.
The Bottom Line
Food companies should prioritize improving packaging design and functionality, as this has the strongest influence on purchase decisions (high confidence). Clear, accessible food information should be prominently displayed on packages (high confidence). Highlighting environmental benefits of packaging may provide additional motivation for some consumers (moderate confidence). Marketers should recognize that personal attitudes matter less than product presentation, so focus on making plant-based foods easy to understand and appealing through packaging design (moderate confidence). Policymakers can encourage plant-based food adoption by supporting companies that use effective packaging and clear labeling (moderate confidence).
Food companies and marketers selling plant-based products should use these findings to redesign packaging and improve product information presentation. Policymakers and public health officials can use this research to develop strategies encouraging plant-based food consumption. Consumers interested in eating healthier should be aware that packaging and product presentation significantly influence their choices—paying attention to how foods are presented can help you make more intentional decisions. People with specific nutritional needs should look for products that clearly communicate how they meet individual dietary requirements.
Changes in packaging and product information can influence purchase decisions immediately—people may start buying plant-based foods within weeks of encountering improved packaging. However, establishing lasting healthy eating habits typically takes 2-3 months of consistent purchasing and consumption. The full benefits of dietary changes appear over months to years as eating patterns become established routines.
Frequently Asked Questions
What influences people to buy plant-based foods the most?
Packaging design and functionality have the strongest influence, followed by individual nutritional needs and how clearly food information is presented. A 2026 study found that external product factors like packaging matter more than personal attitudes when making purchase decisions.
Does packaging really affect whether people eat healthier?
Yes, significantly. Research shows that how food is packaged and presented influences both whether people buy plant-based products and whether they actually eat them. Better packaging and clearer information create a chain effect: improved packaging leads to more purchases, which leads to more regular consumption.
How much do personal beliefs affect plant-based food purchases?
Personal attitudes and beliefs have moderate influence on plant-based food purchases, but they matter less than packaging and product presentation. A 2026 study found that external factors like packaging design outweigh internal consumer factors like personal opinions about healthy eating.
Can eco-friendly packaging help sell more plant-based foods?
Environmental packaging considerations have moderate positive influence on purchase decisions. While not the strongest factor, highlighting eco-friendly packaging can provide additional motivation for some consumers to choose plant-based products, especially those already concerned about environmental impact.
What’s the best way to encourage people to eat plant-based foods regularly?
Focus on improving packaging design, clarity of food information, and making products easy to understand. Research shows that getting people to purchase plant-based foods is an important first step toward establishing regular healthy eating habits, so companies should prioritize attractive, informative packaging.
Want to Apply This Research?
- Track weekly plant-based food purchases and note which products you buy. Record the specific packaging features or information that influenced your decision (e.g., ‘clear nutrition label,’ ’eco-friendly packaging,’ ‘convenient portion size’). Monitor how often you actually consume these purchased items versus letting them go unused.
- Use the app to photograph and compare packaging of different plant-based products before purchasing. Create a ‘preferred products’ list based on packaging features and information clarity that appeal to you. Set a weekly goal to try one new plant-based product with packaging you find appealing and informative.
- Track your plant-based food purchases monthly and rate how well each product’s packaging and information influenced your buying decision (1-10 scale). Monitor your actual consumption of purchased plant-based foods to see if better packaging correlates with eating them more regularly. Over 3 months, assess whether improved product selection based on packaging and information has increased your plant-based food intake.
This research is a pilot study examining factors influencing plant-based food purchases and should not be considered definitive guidance for dietary decisions. Individual nutritional needs vary significantly based on age, health status, activity level, and medical conditions. Before making major dietary changes, especially if you have existing health conditions, food allergies, or take medications, consult with a healthcare provider or registered dietitian. This study measures purchase intention and self-reported behavior rather than actual long-term health outcomes. The findings apply specifically to plant-based foods and may not generalize to other food categories or populations not represented in the study sample.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.