Older Adults May Require a Supplemental Source of Vitamin B-12

Multiple Choice

Older adults may require a supplemental source of vitamin B-12 because

A) low intake of vitamin C impairs vitamin B-12 absorption.
B) decreased production of intrinsic factor decreases vitamin B-12 absorption.
C) increased hydrochloric acid production decreases vitamin B-12 absorption.
D) high fiber intake binds vitamin B-12.