NUTR-313 Final: Lecture 33 (Nutrition for
Ages) QUESTIONS AND ANSWERS 100%
RATED CORRECT WITH 100% SURE
PASS|GRADED A+
Life Groups - CORRECT ANSWERS We're going to talk in this part about the nutritional needs
across the life stages. And, so far, we've talked about the adult daily nutrient requirements. So, anyone
in the age range of 18 all the way to 50 which covers most of us in this class. But now, we're going to
learn about the nutrient needs and how they deviate for different ages that are younger and older than
the general 18 to 50 year old adult population. So, the way that the DRI is sectioned into age
demographics looks at infants in the younger and older infant categories, several groups of children all
the way from toddler to teens, and then they break off into older adults which is anywhere from 51 to
70 or elderly adults which are anywhere from 70 plus. So, those are the different ages we're going to
look at. And the nutrient requirements increase and decrease across these age groups based on several
factors that we will discuss.
Control: Biological and Behavioral Needs - CORRECT ANSWERS So, we'll start off, logically,
with the youngest age group.
1.) The daily recommended intake for young infants is actually only an adequate intake. So again, if you
remember, that's just where we measure how much is typically consumed and that amount seems to be
good to produce general healthy outcomes
→ So, the DRI based on adequate intake is based on a certain quantity of breast milk. And, that happens
to be .67 liters.
→ So, what they do is take .67 liters of breast milk, measure the nutrient content in that breast milk, and
say that okay this daily amount must be adequate for nutrient healthy outcomes.
2.) So, macronutrients, micronutrients on the right, a couple of things to look at, looking at the fat
intake. So, infant fat requirements are actually much higher than regular adults like we've talked about
so far and, you'll notice that, of anywhere from about 500 to 600 calories that infants consume per day
in breast milk or formula, about half of those calories are coming from fat, which is a lot higher. So, 50%
calorie fat diet, fat calorie diet is much higher than the healthy adult recommendation
3.) It's also going to be a little bit protein despite the rapid growth rate because protein is one of the
harder nutrients for infants to digest. So, because of that, human breast milk is very high in essential
amino acids so that infants can have less protein but still meet those essential amino acid requirements.
, 4.) You'll also notice the fluid amount in breast milk and then it's mostly, obviously, fluids, mostly water
and then, you can look over at the micronutrient side and notice a couple interesting things like iron and
zinc.
→ So, you'll notice that, iron and zinc, the DRI's much lower. And, you know, that makes sense as a
function of the size of the baby being smaller. But really, the reason the iron co
Adequate Intake 7-12 Months - CORRECT ANSWERS So, the RDA for 7 to 12 month old
infants, we have a couple good values with an actual, you know, EAR which has been converted to an
RDA, we talked about that a long time ago. But, a couple good sets of nutrients where they've been
measured using balanced data and standardized equations. So, if you look at total energy or calories, it's
basically using the same kind of formulas that we've covered for healthy adults, and protein, iron, and
zinc using balanced studies where we looked at the exact amount consumed in the diet and then all of
the different sources of losses that we sum together. And then, from that, kind of collectively seeing
how much the body's retaining and using:
1.) So, for those, those nutrients that are listed, we have good RDAs for 7 to 12 month old babies.
2.) For the other lots of nutrients that are listed, we have little bit less good estimates of how much is
needed daily. But, these amounts presented seem to be producing healthy children.
3.) So, adequate intake for 7 to 12 months old are based on several different methods.
→ One method looks at hey we know these guys are still consuming lots of milk, so we're going to
reduce the breast milk intake from that .67 liters and we're going to take that down to .60 because,
breast milk consumption drops off a little bit or formula and they start having a compensatory intake of
whole foods
⤷ So, milk intake goes down to .6 liters, compensatory foods bumps up to an estimated 400 calories per
day from a variety of different types of foods. And, from estimating those together, we get these values
for these nutrients listed here in the far left column.
⤷ Now again, these are just adequate intake values. But, if you consume these between your milk and
your compensatory foods, you're a very healthy seven to twelve month old.
→ There's also two other ty
Children 1-8 RDA/AI - CORRECT ANSWERS Moving along to the children in the 1 through 8
category:
1.) They're also like adults in that they have regular TEE or total energy expenditure formulas for
estimating how many calories they need using adult type methods for estimating physical activity levels
Ages) QUESTIONS AND ANSWERS 100%
RATED CORRECT WITH 100% SURE
PASS|GRADED A+
Life Groups - CORRECT ANSWERS We're going to talk in this part about the nutritional needs
across the life stages. And, so far, we've talked about the adult daily nutrient requirements. So, anyone
in the age range of 18 all the way to 50 which covers most of us in this class. But now, we're going to
learn about the nutrient needs and how they deviate for different ages that are younger and older than
the general 18 to 50 year old adult population. So, the way that the DRI is sectioned into age
demographics looks at infants in the younger and older infant categories, several groups of children all
the way from toddler to teens, and then they break off into older adults which is anywhere from 51 to
70 or elderly adults which are anywhere from 70 plus. So, those are the different ages we're going to
look at. And the nutrient requirements increase and decrease across these age groups based on several
factors that we will discuss.
Control: Biological and Behavioral Needs - CORRECT ANSWERS So, we'll start off, logically,
with the youngest age group.
1.) The daily recommended intake for young infants is actually only an adequate intake. So again, if you
remember, that's just where we measure how much is typically consumed and that amount seems to be
good to produce general healthy outcomes
→ So, the DRI based on adequate intake is based on a certain quantity of breast milk. And, that happens
to be .67 liters.
→ So, what they do is take .67 liters of breast milk, measure the nutrient content in that breast milk, and
say that okay this daily amount must be adequate for nutrient healthy outcomes.
2.) So, macronutrients, micronutrients on the right, a couple of things to look at, looking at the fat
intake. So, infant fat requirements are actually much higher than regular adults like we've talked about
so far and, you'll notice that, of anywhere from about 500 to 600 calories that infants consume per day
in breast milk or formula, about half of those calories are coming from fat, which is a lot higher. So, 50%
calorie fat diet, fat calorie diet is much higher than the healthy adult recommendation
3.) It's also going to be a little bit protein despite the rapid growth rate because protein is one of the
harder nutrients for infants to digest. So, because of that, human breast milk is very high in essential
amino acids so that infants can have less protein but still meet those essential amino acid requirements.
, 4.) You'll also notice the fluid amount in breast milk and then it's mostly, obviously, fluids, mostly water
and then, you can look over at the micronutrient side and notice a couple interesting things like iron and
zinc.
→ So, you'll notice that, iron and zinc, the DRI's much lower. And, you know, that makes sense as a
function of the size of the baby being smaller. But really, the reason the iron co
Adequate Intake 7-12 Months - CORRECT ANSWERS So, the RDA for 7 to 12 month old
infants, we have a couple good values with an actual, you know, EAR which has been converted to an
RDA, we talked about that a long time ago. But, a couple good sets of nutrients where they've been
measured using balanced data and standardized equations. So, if you look at total energy or calories, it's
basically using the same kind of formulas that we've covered for healthy adults, and protein, iron, and
zinc using balanced studies where we looked at the exact amount consumed in the diet and then all of
the different sources of losses that we sum together. And then, from that, kind of collectively seeing
how much the body's retaining and using:
1.) So, for those, those nutrients that are listed, we have good RDAs for 7 to 12 month old babies.
2.) For the other lots of nutrients that are listed, we have little bit less good estimates of how much is
needed daily. But, these amounts presented seem to be producing healthy children.
3.) So, adequate intake for 7 to 12 months old are based on several different methods.
→ One method looks at hey we know these guys are still consuming lots of milk, so we're going to
reduce the breast milk intake from that .67 liters and we're going to take that down to .60 because,
breast milk consumption drops off a little bit or formula and they start having a compensatory intake of
whole foods
⤷ So, milk intake goes down to .6 liters, compensatory foods bumps up to an estimated 400 calories per
day from a variety of different types of foods. And, from estimating those together, we get these values
for these nutrients listed here in the far left column.
⤷ Now again, these are just adequate intake values. But, if you consume these between your milk and
your compensatory foods, you're a very healthy seven to twelve month old.
→ There's also two other ty
Children 1-8 RDA/AI - CORRECT ANSWERS Moving along to the children in the 1 through 8
category:
1.) They're also like adults in that they have regular TEE or total energy expenditure formulas for
estimating how many calories they need using adult type methods for estimating physical activity levels
