Researchers compared protein intake among three groups of postmenopausal women: (1) women eating a standard American diet (STD), (2) women eating a lacto-ovo-vegetarian diet (LAC), and (3) women eating a strict vegetarian diet (VEG). The mean ± 1 sd for protein intake (mg) is presented in Table 2.
Table 2: Protein intake (mg) among three dietary groups of postmenopausal women
Group Mean SD n
STD 75 9 10
LAC 57 13 10
VEG 47 17 6