NFS284H1 Lecture Notes - Lecture 3: Weight Gain, Human Height, Standard Deviation

• School: UTSG
• Department: Nutritional Science
• Course: NFS284H1
• Professor: Debbie Gurfinkel

Document Summary

Lecture 3 recall: rda is ear + 2 standard deviation. Ai: usually used when there is insufficient data/experiment to construct the requirement distribution curve. If nutrient has an ai(cid:314) it needs more research. Ai is considered god personal target: if you"re above: you"re good. If you"re under ai: we cant calculate a numerical value. If you"re under ear: we can calculate probability that you are meeting the requirement. For a nutrient to impose a risk, it needs to be: Supplement: some people over-consume those supplement, which leads to the development of those numbers (in most of the planet) Weight gain can be gradual, over the course of life time. Less harder to maintain the energy balance as you age: it is more likely to have a positive energy surplus. Body height: metre so the impact is very small. (cid:315) muscle mass and (cid:313) percent body fat. (cid:313) in body size (cid:314) (cid:313) in energy requirement.