Nutrigenomics is a new scientific discipline that uses modern genomics technology to study the relationship between genes, nutrition and health. It has long been apparent that some people respond differently from others to certain foods. For example, individuals with lactose intolerance experience gastrointestinal discomfort after consuming certain dairy products, while other individuals can consume dairy with no problems. Nutrigenomics allows us to understand how our genes affect the way we respond to the foods, beverages and supplements we consume.