Exam 16: Life Cycle Nutrition: Infancy,Childhood and Adolescence
How do the energy nutrients in breast milk compare to those in cow's milk?
The energy-nutrient composition of breast milk differs dramatically from that recommended for adult diets.Yet for infants,breast milk is nature's most nearly perfect food,providing the clear lesson that people at different stages of life have different nutrient needs.The main carbohydrate in breast milk (and standard infant formula)is the disaccharide lactose.In addition to being easily digested,lactose enhances calcium absorption.The carbohydrate component of breast milk also contains abundant oligosaccharides,which are present only in trace amounts in cow's milk and infant formula made from cow's milk.Breast milk oligosaccharides help protect the infant from infection by preventing the binding of pathogens to the infant's intestinal cells.The amount of protein in breast milk is less than in cow's milk,but this quantity is actually beneficial because it places less stress on the infant's immature kidneys to excrete urea,the major end product of protein metabolism.Much of the protein in breast milk is alpha-lactalbumin,which is efficiently digested and absorbed.As for the lipids,breast milk contains a generous proportion of the essential fatty acids linoleic acid and linolenic acid,as well as their longer-chain derivatives arachidonic acid and DHA.DHA accumulation in the brain is higher in breastfed infants than in formula-fed infants.Research has focused on the mental and visual development of breastfed infants and infants fed standard formula with and without DHA added.Results of studies for visual acuity are mixed,perhaps because of factors such as the amount of DHA provided,the source of the DHA,and the sensitivity of different measures for visual acuity.Some evidence from studies examining the effects of DHA status during fetal and infant development on cognitive function suggests that DHA supplementation can make a positive difference.Adding DHA to standard infant formulas has no adverse effects; most standard formulas are currently fortified with both DHA and arachidonic acid.
Children who are allowed to choose freely from a variety of foods,usually select foods that are high in ________.
C
What factor in breast milk inhibits inflammatory bowel disease and supports a healthy epithelial barrier?
B
Which of the following statements accurately describes how obesity affects the physical and psychological health of a child?
Approximately what percentage of U.S.children between 2 and 19 years of age are either overweight or obese?
Approximately how many children receive free or reduced-price lunches through the National School Lunch Program?
Which of the following people would be considered a gatekeeper of nutrition?
Of the following cereals,which is least likely to result in an allergic reaction upon first feeding?
Which foods most often cause anaphylactic shock in children with food allergies?
What term is defined as the milk-like substance secreted right after delivery?
Which of the following statements accurately describes the genetic and environmental factors that affect childhood obesity?
Which of the following formulas should be used first when an infant is found to be lactose intolerant?
A healthy infant that weighs 7 pounds at birth likely will weigh ________ pounds by her first birthday.
________ is inattentive and impulsive behavior that is more frequent and severe than is typical of others a similar age.
MATCHING
-Milk-like secretion from the breast,present during first few days after delivery
To help improve a child's BMI,the American Academy of Pediatrics recommends limiting television and video time for children older than 5 years to ________ hours per day.
How can obesity be prevented? How should it be treated if developed in young children?
Describe the physical and mental effects of lead exposure on children.
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