The effect of daily baked bean (Phaseolus vulgaris) consumption on the plasma lipid levels of young, normo-cholesterolaemic men.
1. Thirteen normo-cholesterolaemic male students consumed one 450 g can of baked beans (Phaseolus vulgaris) in tomato sauce, daily, for 14 d as part of their normal diet. After a 14 d washout period, eleven of the students went on to consume one 440 g can of spaghetti in tomato sauce, daily, for 14 d. 2. Fasting blood samples were taken frequently for measurement of plasma cholesterol, high-density lipoprotein (HDL)-cholesterol, triacylglycerols, glucose, insulin and C-peptide. Diet diaries (3 d) were completed by the subjects during each period. 3. Consumption of beans and spaghetti led to a significant reduction in the amount of fat eaten daily (P less than 0.05). Bean consumption also resulted in significant increases in protein, fibre and sugar intakes (P less than 0.02, P less than 0.001 and P less than 0.05 respectively). 4. During the bean-eating period the mean total plasma cholesterol level of the students fell significantly from 5.1 to 4.5 mmol/l (P less than 0.02). No reduction in plasma cholesterol occurred during the spaghetti-eating period. 5. HDL-cholesterol levels fell significantly during both periods (P less than 0.001), but HDL:total cholesterol ratio was significantly reduced only during the spaghetti-eating period (P less than 0.001). Neither beans nor spaghetti affected triacylglycerol, insulin or C-peptide levels. 6. The benefits of a legume-rich diet are discussed.
Shutler
S M
SM
Pig Department, AFRC Institute for Grassland and Animal Production, Shinfield, Reading, Berks.
Bircher
G M
GM
Tredger
J A
JA
Morgan
L M
LM
Walker
A F
AF
Low
A G
AG
D000293:Adolescent; D000328:Adult; D001786:Blood Glucose / Q000032:analysis; D002096:C-Peptide / Q000097:blood; D002784:Cholesterol / Q000097:blood*; D008076:Cholesterol, HDL / Q000097:blood; D004032:Diet; D007887:Fabaceae; D006801:Humans; D007328:Insulin / Q000097:blood; D008055:Lipids / Q000097:blood*; D008297:Male; D010946:Plants, Medicinal; D014280:Triglycerides / Q000097:blood
D001786:Blood Glucose; D002096:C-Peptide; D008076:Cholesterol, HDL; D007328:Insulin; D008055:Lipids; D014280:Triglycerides; D002784:Cholesterol