The **American Society for Nutrition** held its annual congress in Maryland, United States, from 25 to 28 July 2026. The event brought together researchers and professionals to discuss the increasing focus on individual differences in how people respond to nutrition. Scientists presented studies showing that genetic factors can influence food preferences and how individuals react to different types of diets. For example, research suggested that the quality of fats in a person's diet could affect how well they respond to low-carbohydrate eating plans. The congress also emphasized that people's responses to the same dietary strategy—such as cutting out carbs or increasing protein intake—can differ greatly depending on their genetic makeup, the specific foods they eat, and their overall metabolic health. These findings challenge the idea that one-size-fits-all approaches to diet are effective for everyone. Researchers encouraged moving beyond simple "good" versus "bad" food labels, which often oversimplify complex nutritional science. Instead, they advocated for a more personalized approach that considers individual differences in genetics, metabolism, and lifestyle. This shift aims to help people make more informed and effective dietary choices tailored to their unique needs. The discussions at the congress highlighted the importance of integrating genetic and metabolic data into nutritional recommendations. As the field of personalized nutrition continues to grow, experts are working to develop more precise guidelines that reflect the diversity of human biology and dietary needs.