1 / 8

Dietary Reference Intakes (DRIs)

Dietary Reference Intakes (DRIs). Published in 1997 by US and Canadian researchers Four nutrient intake values used to plan and assess diets of healthy people 1 . Estimated Average Requirements (EARs): - for each nutrient

theo
Download Presentation

Dietary Reference Intakes (DRIs)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Dietary Reference Intakes (DRIs) • Published in 1997 by US and Canadian researchers • Four nutrient intake values used to plan and assess diets of healthy people 1. Estimated Average Requirements (EARs): - for each nutrient - average amount that will maintain a specific body function in half the population

  2. Dietary Reference Intakes (DRIs) 2. Recommended Dietary Allowance (RDAs): - Average amount of nutrients considered adequate to meet the needs of 98% of healthy people 3. Adequate Intakes (AI): - Used for nutrients where there is insufficient evidence to determine an EAR. - Based on average amount of nutrient that a group of healthy people consumes

  3. Dietary Reference Intakes (DRIs) • Tolerable Upper Intake Level (UL) - the highest amount of a nutrient that appears safe for consumption - beyond the UL may be toxic AIs and RDAs are used to set goals for nutrient intake

  4. Malnutrition Deficiency Excess   Undernutrition Overnutrition Symptoms: Symptoms: - thin - obese - loss of muscle tissue - increase - vulerable to infections risk of and disease diabetes, heart disease

  5. Malnutrition • Diagnosed by diet/health history from medical records • information on drug use, socioeconomic status, laboratory results and anthropometric data (body weight compared to standard) And physical exam

  6. Malnutrition • Nutrient Deficiency 1 - too little nutrients in the body due to inadequate dietary intake  diet hx 2 - disease that reduces absorption of nutrients/or accelerated the uses of nutrients  health hx Subclinical – deficiency in its early stages before outward signs/symptoms  lab tests

  7. Body Mass Index (BMI) BMI (Body Mass Index) – an index of a persons weight in relation to height Wt (kg)or Wt (lbs) x 703 Ht (m)2 Ht (in)2 BMI 18.5 or less  underweight: reduced work capacity, poor reproductive function BMI 25 - 29.9  overweight BMI 30 or more obese: increased mortality

  8. Body Mass Index (BMI) Problems with BMI: • Muscular athletes are usually classified as overweight by BMI, but they are not • Does not reflect body fat • Inappropriate for various ethnic groups

More Related