Why nutritional RDA, DRI, and EAR values may not be optimum for long-term health | Bruce Ames
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In this clip, Bruce Ames explains that recommended daily allowance (RDA) is set at two standard deviations above the estimated average requirement (EAR). The estimated average requirement for a specific nutrient is established at levels to prevent short term diseases such as rickets and scurvy. Bruce explains that this may still leave people insufficient for long-term diseases. In light of his triage theory, this means a poor diet may have enough nutrition to prevent serious acute diseases but still lead to accelerated aging and long-term diseases.
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Organic pigments that are found mainly in the chloroplasts of plants and are responsible for absorbing light. Plants use carotenoids to create energy and protection from harmful UV rays and animals commonly use carotenoids as a precursor for vitamin A.
Vitamins and minerals that are required by organisms throughout life in small quantities to orchestrate a range of physiological functions. The term micronutrients encompasses vitamins, minerals, essential amino acids, essential fatty acids.
The daily nutrient goals for essentially all healthy people. RDAs are calculated by determining the Estimated Average Requirements (the average amount of nutrients that half of all healthy people in any given demographic need each day) and adding two standard deviations. This ensures that the RDAs exceed the requirements of approximately 97.5% of the population.
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