Answer :
Final answer:
EER and EAR are estimates for energy and nutrient needs, respectively, based on individual factors and specific bodily functions, showing the variability in requirements among individuals.
Explanation:
Estimated Energy Requirements (EER) are calculated based on individual factors like age, sex, height, weight, and physical activity level, providing an approximate daily caloric intake required to maintain health. For adults, EER aims to maintain energy balance without weight changes, while for children and pregnant/lactating women, it considers growth and additional needs.
Estimated Average Requirements (EAR), on the other hand, represent nutrient intake levels that meet the needs of 50% of individuals within a specific gender and life-stage group, with the criterion set based on maximizing specific bodily functions like bone health for calcium.
Individual energy requirements are influenced by diverse factors such as genetics and metabolism, highlighting the variability in nutrient and caloric needs among people.
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