Why Shoppers Aren’t Choosing More Plant-Based Proteins: Insights from an SFU Study

A recent comprehensive study conducted by researchers at Simon Fraser University offers profound insights into the economic dynamics that shape consumer protein choices at the grocery store, with a particular focus on the price sensitivity of plant-based proteins compared to animal-derived products. Leveraging a robust dataset of over 87,000 grocery carts from Canadian and Finnish consumers, the investigation provides a nuanced understanding that challenges prevailing assumptions about the affordability barrier of plant-based diets.

Utilizing loyalty card data, the research methodologically surpasses traditional self-reported dietary surveys by capturing actual purchase behaviors over extended two-year periods. This empirical approach allowed the team to precisely analyze monthly expenditure trends across 21 protein categories—seven plant-based, including legumes and various plant milks, and fourteen animal-based, encompassing meats, eggs, and dairy products. Such granularity enables an unprecedented assessment of consumer responsiveness to price fluctuations at a macro scale.

The findings reveal a notable asymmetry in price sensitivity: meat purchases exhibit a higher elasticity relative to plant-based protein acquisitions. In other words, when prices increase, consumers tend to reduce meat consumption more sharply than they do with plant-based foods. This counters the widespread notion that plant-based protein costs are the primary deterrent to their selection, suggesting a more sophisticated interplay of economic and behavioral factors influencing food choice.

Socioeconomic strata significantly modulate these trends. While lower-income shoppers display greater overall price sensitivity, the disparity between high and low-income groups shrinks markedly in the context of plant-based products. This phenomenon implicates both pricing structures and product diversity as critical determinants in accessibility, highlighting that affordable, varied plant-based options may democratize sustainable dietary practices across economic boundaries.

The study delves deeper into behavioral economics by contrasting substitution patterns within protein categories. For animal proteins, consumers often opt for lower-cost alternatives—swapping premium cuts for ground meat, for instance—when price pressures mount. However, the plant-based sector, constrained by limited product variety, lacks such flexible substitution pathways. This restricts consumer ability to optimize costs while adhering to plant-based preferences, potentially reinforcing the perception of plant-based foods as specialty, premium items rather than everyday staples.

From a policy perspective, these insights underscore the need for regulatory and market interventions to foster price parity between animal and plant proteins. Measures such as subsidies or targeted discounts for plant-based items could catalyze wider adoption by bridging the affordability gap. Retailers and manufacturers are similarly encouraged to expand the breadth and depth of plant-based product lines, enhancing consumer choice and cost-saving opportunities.

The ecological implications resonate profoundly amid mounting global climate concerns. Transitioning to plant-forward diets is widely recognized as a mitigation strategy against greenhouse gas emissions attributable to livestock production. Therefore, facilitating consumer shifts through economic incentives and increased availability aligns public health goals with environmental sustainability agendas.

Moreover, the findings caution against equating plant-based eating exclusively with processed meat alternatives, which may not offer cost savings and sometimes elevate expenses. Emphasizing whole food sources such as beans, lentils, and peas emerges as a financially and nutritionally advantageous strategy, capable of delivering affordability alongside climate benefits.

In conclusion, the Simon Fraser University study illuminates a complex economic landscape behind protein purchasing behaviors, advocating for multifaceted solutions that integrate pricing reform, product innovation, and consumer education. By dismantling the oversimplified narrative of plant-based food cost barriers, this research charts a course toward making sustainable diets more accessible, equitable, and ultimately, mainstream.

News Publication Date: 10-Mar-2026

Web References:
https://www.nature.com/articles/s44458-026-00040-y

References:
McRae, C., et al. (2026). Plant-based protein foods are less sensitive to price changes than animal-based ones, with differences across income and education levels. Nature. DOI: 10.1038/s44458-026-00040-y