The abbreviation RDA (Recommended Daily Allowance) has been commonly used on food supplement labels for decades. In recent years, this term has been replaced with NRV which is an abbreviation for ‘Nutrient Reference Value’.
NRV’s are set for 13 vitamins and 14 minerals for the purposes of food labelling and are EU guidance levels on the daily amount of vitamin or mineral that the average healthy person needs to prevent deficiency.
Food supplement labels list the ingredients included in the product and give the proportion of the NRV value (% NRV) that is contained within the supplement e.g. Vitamin D, 10ug, 200% NRV.