NOTE: Observed mean intake with xx percent confidence of adequacy = observed mean intake necessary to have approximately xx percent confidence that the woman's intake is greater than her requirement.
a SD = standard deviation; CSFII = Continuing Survey of Food Intake by Individuals.
b RDA = Recommended Dietary Allowance for women 31 through 50 years of age
c EAR = Estimated Average Requirement for women 31 through 50 years of age.
d SD of magnesium intake for women 19 through 50 years of age taken from CSFII (Appendix Table B-2).