What the Study Found

A major study shows that following a vegetarian diet can significantly lower the risk of several types of cancer, in some cases by as much as 45 percent. Scientists at Loma Linda University led the research, analyzing the health records of nearly 79,500 adults from the United States and Canada who were cancer-free at the start. Over more than a decade, they tracked participants and grouped them based on

Vegetarian Diets

dietary habits, ranging from vegans and vegetarians to pescatarians and non-vegetarians.

The results stand out clearly. People who avoided meat entirely reduced their risk of developing stomach cancer by 45 percent. Vegetarian participants lowered their risk of lymphomas and lymphoproliferative cancers by 25 percent. Overall, vegetarians were 12 percent less likely to develop cancer compared to non-vegetarians. Vegans, who cut out all animal products, gained the strongest protection, reducing their overall cancer risk by nearly 24 percent. These benefits appeared especially strong in early-onset breast and prostate cancers.

Why These Findings Matter

The study gains strength from its focus on Seventh-day Adventists, a community already known for healthy lifestyles. By comparing vegetarians and non-vegetarians within this group, researchers highlighted diet as a key factor. Still, the findings show associations rather than direct cause and effect. Lifestyle differences, such as higher exercise levels or lower smoking rates, may also help explain the reduced risks.

The Bigger Picture

Even with those caveats, the evidence suggests that a plant-based diet offers meaningful protection against cancer. Choosing vegetarian or vegan eating patterns doesn’t just align with ethical or environmental goals—it also empowers people to actively lower their risk of serious disease. While genetics and environment continue to play a role, this research strengthens the case for plants as a powerful ally in cancer prevention.