Whereas nutrition scientists have conventionally studied the long-term impacts of loosely defined Mediterranean or Western diets, for example, today they have access to tools that allow them to zoom in on the short-term effects — both helpful and harmful — of narrower food groups and specific dietary components, and to probe the molecular mechanisms underpinning the effects of foods on immunity. Your diet can change your immune system — here’s how – https://www.nature.com/articles/d41586-024-03334-0

Nice article summarizing the latest research in diet and the immune system.