How DNA Testing is Transforming Your Health with Personalized Nutrition

Scientists have announced that personalized nutrition, based on DNA analysis, is becoming one of the most innovative approaches to improving health worldwide. According to a report published in Nature Medicine, each individual’s response to foods like carbohydrates, fats, and even caffeine is influenced by their genes. This means that a one-size-fits-all diet simply doesn’t work for everyone.

The Canadian company Nutrigenomix, founded in 2011 by Dr. Ahmed El-Sohemy, a professor at the University of Toronto, uses a simple saliva test to analyze 70 genes related to nutrition. The results reveal, for instance, that some individuals have a specific version of the LCT gene, making it difficult for them to digest lactose (milk sugar), while others with the FTO gene variant may be more prone to obesity when consuming high amounts of fat. The company now operates in over 35 countries and reports that 80% of its users have experienced health improvements, from weight loss to better blood sugar control, by following their personalized diet recommendations.

Meanwhile, DayTwo, a company operating in Israel and the U.S., offers diet plans based on gut microbiome analysis (the bacteria in the digestive system) to help maintain stable blood sugar levels. A 2023 study published in the Journal of Clinical Endocrinology & Metabolism found that this approach reduced the risk of type 2 diabetes in susceptible individuals by up to 30%. Since 2015, the company has tracked over 100,000 participants, and its findings have been validated in scientific journals.

The World Health Organization (WHO) recently announced that by 2030, personalized nutrition could become a key part of disease prevention programs in developed countries. This method not only helps individuals manage their weight but also lowers the risk of heart and digestive diseases. With wearable devices like continuous glucose monitors (such as those from Levels), people can now see in real time how different foods affect their bodies.

These advancements indicate that the future of health is no longer dependent on general dietary recommendations but is instead tailored to each individual’s DNA. A simple test could reveal which foods are truly right for your body.