Nutrient arrays - The Rosetta Stone for unlocking personalised nutrition for genome maintenance. Theoretical example of a simple Nutrient Array microculture system. NUT = single nutrient or multiple nutrient combination; A-E = different types of nutrients or nutrient combinations; 1-3 = increasing dose levels. The different grey level colouring is simply an indication of the potential variability in cell growth, viability and genome stability that may be observed depending on the combinations used. The challenge is to identify the best combination or combinations for each individual.