Hassan Vatanparast explores why nutrition advice keeps changing

The Science Behind Food, Health, and Changing Advice

By Jason Belhumeur

Nutrition advice can seem contradictory, leaving many people wondering what to believe.

On Sept. 22, 2026, Hassan Vatanparast addressed that question during his public talk, Why Nutrition Is So Confusing: The Science Behind Food, Health and Changing Advice, at Saskatoon’s Hotel Senator.

The event drew a full audience of community members interested in health and science, sparking lively discussion and thoughtful questions that continued well beyond the presentation.

Drawing on his experience in nutrition and health science, Vatanparast explained how nutrition research has evolved from a focus on individual nutrients to foods and overall dietary patterns. Using calcium, dairy products and bone health as examples, he showed why nutrition recommendations can change over time and how people can better evaluate media headlines, social media content and misinformation.

Dr. Vatanparast further engaged with the audience members, broadening the discussion to include nutrition literacy, climate change, food systems, the gut microbiome and precision nutrition.

His central message was that nutrition science is constantly evolving. Rather than relying on individual headlines or isolated findings, people should consider the broader body of evidence and recognize that scientific understanding advances through ongoing research.

The event highlighted the value of bringing researchers and community members together to discuss nutrition, health and the science behind the advice people encounter every day.