Ask someone who still eats animals whether giving up meat will be difficult and you will often get a list. What will I cook? What about eating out? What about protein? Will I actually stick to it?
A study of 815 university students in Brazil suggests something fairly obvious once you see the numbers: people who already eat plant-based often find it much easier than people who do not imagine it will be. Researchers surveyed students across 3 campuses of the Federal University of the Southern Border between March and April 2023, looking at dietary patterns, motivations, perceived barriers and sociodemographic factors. There is an important caveat. The researchers used “plant-based” very broadly. Their category included flexitarians who ate meat no more than once a week, pescovegetarians, lacto-ovo vegetarians and vegans. Overall, 9.6% of students fell into that group. Only 1% were vegan. Even with that rubbish definition, the gap between expectation and experience is striking.
Among students classed as omnivores, 76.6% said adopting a meat-restricted diet would be difficult or very difficult. Among students already eating plant-based, just 21.8% said the same. Staying on it produced an even bigger divide: 81.2% of omnivores thought it would be difficult or very difficult, compared with 28.2% of those already doing it. Then there is self-control. Around 72% of omnivores thought controlling meat consumption would be difficult.
Among plant-based students, the figure was just under 18%. Preparing food followed the same pattern, with about 43% of omnivores expecting difficulty compared with 14% of plant-based students. In other words, a substantial part of the barrier appears to exist before the change is even made. That does not mean there are no genuine obstacles. About 42% of plant-based students rated eating out as difficult or very difficult, while around 37% said the same about finding suitable food. Those are not failures of plant-based eating. They are failures of the food environment around people trying to eat differently. And the research shows that trying something is not the same as sustaining it. Some 16.6% of students said they had previously been vegetarian or vegan. Of those who had followed such a diet, 56.2% had done so for no longer than six months. Only 3.1% of the entire sample reported following one for more than three years.
So advocacy cannot stop at persuading someone to try. People need affordable food, useful information, social support and enough normal plant-based options that every restaurant visit does not become a scavenger hunt. And plant-based food does not need to mean burgers. As we have reported, British sales data show purchases of beans, pulses, tofu and tempeh growing even while some products designed to imitate meat are declining. Nor does choosing plants mean accepting nutritionally inferior protein. Researchers compared 20 high-protein foods across nutrition, affordability and environmental impact. Tofu came first overall.
The Brazilian study also gives us a useful warning against searching for one magic advocacy message. Pro-environmental behaviour, concern for animal rights, opposition to the meat industry and simply disliking the taste of meat were all significantly associated with plant-based eating. Students who maintained plant-based eating for more than six months also had higher average pro-environmental scores than omnivores and shorter-term adopters.
Different people respond to different arguments. Health can matter. Climate can matter. Cost can matter. Animals can matter. Pretending there is one universally persuasive argument makes little sense.
One finding will inevitably attract attention. Political ideology was the only sociodemographic variable in this sample significantly associated with dietary pattern. About 69% of plant-based students identified as far left, left or centre left, compared with about 48% of omnivores. Around 11.5% of plant-based students identified as centre right, right or far right, compared with about 23% of omnivores. That is an association in one university sample. It does not show that political ideology causes someone to eat a particular way.
The more useful finding is simpler.
People routinely imagine plant-based eating as harder than people actually doing it report it to be. If someone expects every meal to be difficult, every restaurant impossible and every craving unbearable, they may never discover how much of that fear survives contact with reality. The answer is not to pretend change requires nothing. It is to stop exaggerating what it requires. Beans are food. Lentils are food. Tofu is food. Vegetables, grains, nuts and seeds are food. None requires farming an animal for their body or secretions. Sometimes the hardest part of plant-based eating is simply believing it will be hard.