RDA stands for Recommended Daily Allowance. This is the daily amount of a vitamin or mineral that the average healthy person needs to maintain health.
The %RDA tells you how much of a nutrient's RDA you get from each dosage of a supplement.
The RNI is the amount of a vitamin or mineral that's enough to meet the nutritional needs of most people.
Upper Safe Levels have been established for most vitamins and minerals, although not set in law, to make manufacturers and consumers aware of the safe maximum daily intake of each nutrient. All the vitamins and minerals in the Sanatogen range are below the Upper Safe Levels.
The following website is a good sources of information about vitamins and minerals:
www.hsis.org HSIS, the Health Supplements Information Service, is an educational programme that presents the facts about nutritional supplements in a simple, straightforward way with useful information about vitamins and minerals.