1. Nutrient Intake

2. Recommended Dietary Allowance (RDAs)
Food Guide Pyramid
Published in 1943
National Academy of Science
The first official set of dietary standards
Replaced by DRIs

3. Dietary Reference Intakes (DRIs)
Choose My Plate
Published in years after the RDAs
National Academy of Sciences
Include 4 sets of standards
Depends on sex and life stages – other factors
Estimation of nutrient requirement and intake goals in a healthy population

6. Energy Intake

7. Estimated Energy Requirements (EERs)
Average energy intakes needed to maintain weight (or growth) for an individual in a population
Similar to DRI (why?) but more specific (why?)
354 – (6.91)(age) + PA[(9.36)(wt) + (726)(ht)] for females
662 – (9.53)(age) + PA[(15.9)(wt) + (540)(ht)] for males
Acceptable Macronutrient Distribution Ranges (AMDRs)
Distribution of energy sources
45-65% of total energy from carbohydrates
10-35% from proteins
20-35% from lipids

8. Question
I just used the formula in this book and calculated my EER to be 2,900 kcal/day. If I ate that much, I am positive that I would gain weight. Does this mean that there is something wrong with my metabolism?

9. Answer
No. Keep in mind that the EER represent the Estimated Energy Requirements for individuals of similar sex, weight, height, and activity patterns. Your individual energy requirement may be somewhat more or less depending on other factors such as body composition and genetic factors.