11 Jun 2019 --- Individual responses to the same foods are unique, even between identical twins, demonstrating that one-size-fits-all dietary guidelines are too simplistic. This is among the first results from the largest ongoing scientific nutrition study of its kind, led by an international team of scientists including researchers from King’s College London, Massachusetts General Hospital and nutritional science company ZOE. The findings highlight that a personalized approach to nutrition may provide better long-term health benefits.