title: Cholesterol intake is associated with lecithin intake in Japanese people.
abstract: Many dietary recommendations for the prevention of heart disease and hyperlipidemia include restriction of cholesterol intake. However, limiting cholesterol intake might also affect the intake of other nutrients. The daily intakes of cholesterol, lecithin, total fatty acids, and SFAs by 388 Japanese subjects (ages 6-59 y) were analyzed directly using the duplicate portion sampling technique. Intakes were 266.1 +/- 146.5 mg/d, 1.6 +/- 0.9 g/d, 39.3 +/- 16.8 g/d, and 12.8 +/- 6.9 g/d, respectively. There was a strong positive correlation between cholesterol and lecithin intakes (r = 0.864, P < 0.001), and when food intake was adjusted to 1 kg/d, the correlation remained high (r = 0.881, P < 0.001). In contrast, the correlation between total fatty acid and lecithin intakes was lower (r = 0.423, P < 0.001), and when food intake was adjusted to 1 kg/d, the correlation coefficient remained stable (r = 0.448, P < 0.001). These results strongly indicate that limiting cholesterol intake decreases lecithin intake. Lecithin intake can be estimated from the following regression equation: lecithin intake (g/d) = 0.005 x cholesterol intake (mg/d) + 0.16 (R2= 0.747, P < 0.001). Furthermore, the intake of choline derived from lecithin can be estimated by the following equation: choline (mg/d) = 0.724 x cholesterol (mg/d) + 21.5.
authors.affiliation: Department of Health Sciences, Hiroshima Prefectural Women's University, Hiroshima, 734-8558 Japan. isinaga@pu-hiroshima.ac.jp
authors.forename: Masataka
authors.initials: M
authors.lastname: Ishinaga
authors.forename: Aiko
authors.initials: A
authors.lastname: Ueda
authors.forename: Teruyo
authors.initials: T
authors.lastname: Mochizuki
authors.forename: Sumi
authors.initials: S
authors.lastname: Sugiyama
authors.forename: Toshio
authors.initials: T
authors.lastname: Kobayashi
mesh_terms: D000328:Adult; D044466:Asian People; D002648:Child; D002791:Cholesterol, Dietary / Q000008:administration & dosage*; D002794:Choline / Q000008:administration & dosage; D004032:Diet; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010713:Phosphatidylcholines / Q000008:administration & dosage*; D012044:Regression Analysis
chemical_list: D002791:Cholesterol, Dietary; D010713:Phosphatidylcholines; D002794:Choline