Question

type the correct answer in each box. use numerals instead of words. how much intake should there be of protein to preserve the lean body mass? samantha has a total daily intake of 1,500 calories. to preserve her lean body mass, samantha should have a total protein intake between grams and grams.

Explanation:

Step1: Recall calorie - protein conversion

Protein provides 4 calories per gram.

Step2: Calculate lower - bound of protein intake

For a lower - bound estimate, assume a common recommendation of 20% of total calories from protein for lean body mass preservation. So, the number of calories from protein is $0.2\times1500 = 300$ calories. Then, the protein amount in grams is $\frac{300}{4}=75$ grams.

Step3: Calculate upper - bound of protein intake

For an upper - bound estimate, assume 35% of total calories from protein. So, the number of calories from protein is $0.35\times1500 = 525$ calories. Then, the protein amount in grams is $\frac{525}{4}=131.25$ grams.

Answer:

75, 131.25