Nutrigenetics is the field of science that seeks to understand how we metabolise and process different nutrients, based on our unique genetic make-up.
Our DNA can have a significant effect on the way our bodies use nutrients, such as how these nutrients are absorbed, transported, activated, and eliminated from the body. Once our genetic profile has been determined, we can match our nutrient intake to our genetic make-up to achieve enhanced physical and cognitive performance.
Simply following government recommended dietary allowances is not going to give you what you specially need to best realise your health and fitness goals. Prof. Michael Fenech, of CSIRO Preventative Health National Research Flagship commented in his key 2011 paper that 'Dietary reference values, e.g. recommended dietary allowance (RDA) are designed for the general population and based on different metabolic outcomes, are not optimised for genetic subgroups which may differ critically in the activity of transport proteins for a micronutrient and/or enzymes that require that micronutrient as a cofactor. The ultimate goal (of nutrigenetics) is to match the nutriome (i.e. nutrient intake combination) with the current genome status (i.e. inherited and acquired genome) so that genome maintenance, gene expression, metabolism and cell function can occur normally and in a homeostatically sustainable manner. Better health outcomes can be achieved if nutritional requirements are customised for each individual taking into consideration both his/her inherited and acquired genetic characteristics depending on life stage, dietary preferences and health status.'