Nurition across the lifespan Flashcards
What is nutrition
This is the relationship between food composition, dietary intake and function
Define nutritional metabolism
Chemical reactions and processes by which energy and nutrients from foods are utilized by the body
The nutritional value of dietary proteins depends primarily on the capacity to satisfy the needs for what three things
- Total nitrogen
- Amino Acids
- growth and maintenace of body protein
What are the two classifications of amino acids?
- Essential
- Non- Essential
What are the 9 essential acids
histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine
(They are seential because they are not synthesized by mammals and need to be obtained from the diet)
What are the 5 stages of the life cycle
Preganacy&lactation
infancy
childhood
adolescence
Adulthood
Dietary intake during pregnancy should provide energy and nutrients that will ensure
i) Optimum weight gain
ii) Full-term delivery of a healthy newborn baby
What is considered a healthy newborn baby size?
3.1-3.6kg
What is the most significant predictor of low birth weight and IUGR?
not attaining adequate maternal weight
What is the recommended weight gain for an underweight pregnant mother? BMI<18.5
12.7-18.2 kg
What is the recommended weight gain for a pregnant mother with normal weight? BMI18.5-24.9
11.4-15.9
What is the recommended weight gain for an overweight pregnant mother? BMI 25-29.9
6.8-11.4
What is the recommended weight gain for an obese pregnant mother? BMI >/=30kg
At least 6.8 kg
What 2 components of body composition are frequently meassured
Fat and lean tissue
What consequence does insufficient dietary protein have on lean mass?
decreased lean mass synthesis