The correlation between two dietary assessments of carotenoid intake and plasma carotenoid concentrations: application of a carotenoid food-composition database.
A newly available carotenoid food-composition database providing specific carotenoid values for > 2300 foods was linked to dietary data on 57 male nonsmokers to examine the association between dietary carotenoid intake and plasma carotenoid concentrations over 3 wk when free-living. Carotenoid intake was estimated from a food-frequency questionnaire (FFQ) and 7 d of food diaries with concurrent analysis of plasma carotenoid concentrations. After adjustment for energy intake, percentage of energy from alcohol, and plasma lipid concentrations, significant diet-plasma correlations for the FFQ and the food diaries (FD) included alpha-carotene (r = 0.29 and 0.43), beta-carotene (r = 0.36 FFQ only), beta-cryptoxanthin (r = 0.46 and 0.44), lutein (r = 0.44 FD only), and lycopene (r = 0.53 FD only). Dietary carotenoid intakes were associated with plasma carotenoid concentrations for all the carotenoids except for beta-carotene when food diaries were used whereas the diet-plasma correlation for the provitamin A carotenoids were consistently significant when the FFQ was used.
Forman
M R
MR
Cancer Prevention Studies Branch, National Cancer Institute, Rockville, MD 20892.
Lanza
E
E
Yong
L C
LC
Holden
J M
JM
Graubard
B I
BI
Beecher
G R
GR
Meltiz
M
M
Brown
E D
ED
Smith
J C
JC
D000328:Adult; D002338:Carotenoids / Q000008:administration & dosage* / Q000097:blood*; D016208:Databases, Factual; D004032:Diet; D015930:Diet Records; D005504:Food Analysis; D006801:Humans; D008297:Male; D011795:Surveys and Questionnaires
D002338:Carotenoids