this study was performed to determine ( 1 ) the normal serum response to a single oral dose of beta-carotene ( bc ) , ( 2 ) the effect of meal timing and serum response to meal lipids on serum bc , ( 3 ) the effect of administered bc on other serum carotenoids and retinoids , and ( 4 ) the relationship of body composition to serum bc response .
C0007271
carotenoids
C0035339
retinoids