basics of nutrition Flashcards
how do you know if a nutrient is essential
- if when removed, there is a deficiency and decline in health
- if when put back into diet, the deficiency and decline in health are corrected
when does nutritional deficiencies occur
nutritional deficiencies occur when a person’s nutrient intake consistently falls below the recommended requirement.
if you are deficient in Iron, Folate, and/or Vitamin B12, what do you most likely have
anaemia
what is anaemia
- not enough red blood cells to transport oxygen around the body
if you are deficient in thiamine (vitamin B1)
beriberi
what is beriberi
- defective energy production
- abnormalities in the nervous system
if you are deficient in vitamin c
scurvy
what is scurvy
- defective collagen production
- causes haemorrhaging & bleeding of the gums
if you are deficient in vitamin D
rickets
what is rickets
- vitamin D is obtained from the diet and made by the body via UV radiation
- defective bone growth
what is the Dietary Reference Intake used for
it is used for making daily values on the nutrition facts labels
what is DRI
dietary reference intake is an umbrella term that refers to a set of reference values for nutrients
what two factors are looked at when establishing nutrient requirements established (two things)
- estimated average requirements (needs of 50% of the population are met)
- recommended dietary allowance (needs of 97% of population are met)
what is the tolerable upper limit
the highest level of continuous daily nutrient intake that causes no risk of adverse effects
what is an adequate intake
intake that avoids any deficiencies
- based on less scientific data
- expected to meet or exceed the needs of most individuals