Why Do Multivitamins Have More Than the RDA?

The Recommended Dietary Allowances (RDAs) were established (in the 1940-50s) to prevent acute nutrient deficiencies, focusing on minimum requirements for survival. However, modern research indicates that higher nutrient intakes may support optimal health, energy, and disease prevention. Factors such as stress, environmental toxins, and individual variations can increase nutrient needs beyond the RDA. Consequently, many multivitamins provide nutrients in amounts exceeding 100% of the RDA to address these enhanced requirements and promote overall well-being.