Effects of a milk product, fermented by Lactobacillus acidophilus and with fructo-oligosaccharides added, on blood lipids in male volunteers.
OBJECTIVE
To investigate in adult male volunteers the effect of a new fermented milk product, fermented by Lactobacillus acidophilus and with fructo-oligosaccharides added, on blood lipids.


METHODS
Randomized placebo-controlled double-blind two-way cross over trial with two treatment periods of three weeks, separated by a wash-out period of one week.


METHODS
the study was performed at the TNO Nutrition and Food Research Institute in Zeist, The Netherlands. SUBECTS: Thirty normal healthy men, aged 33-64y (mean serum total cholesterol level: 5.23 +/- 1.03 (s.d.)), were selected for this study. Normal health was assessed by pre study screening. All subjects were used to an average Dutch food pattern.


METHODS
During the treatment periods subjects consumed three times daily a 125 ml of either test or reference product as a part of their habitual diet. The test product was a milk, fermented by yogurt starters and Lactobacillus acidophilus, and contained 2.5% fructo-oligosaccharides, 0.5% vegetable oil and 0.5% milk fat. The reference product was a traditional yogurt (milk fermented only by yogurt strains), containing 1% milk fat. Blood samples for serum lipid analysis and blood glucose measurements were taken before the start of the experiment and at the end of both treatment periods.


RESULTS
As compared to the reference product, consumption of the test product resulted in significantly lower values for serum total cholesterol (P < 0.001), LDL-cholesterol (P < 0.005), and the LDL/HDL-ratio (P < 0.05) by 4.4, 5.4 and 5.3% respectively. Levels of serum HDL-cholesterol, triglycerides and blood glucose remained essentially unchanged. The beneficial effects of the test product on serum cholesterol were largely related to an increase of this parameter during the consumption of the reference product.


CONCLUSIONS
As compared to traditional yogurt, daily consumption of three times 125 ml of test product specifically lowered serum LDL-cholesterol levels in normal healthy male adult subjects with borderline elevated levels of serum total cholesterol within three weeks.
TNO Nutrition and Food Research Institute, Zeist, The Netherlands.
G
G
Schaafsma
W J
WJ
Meuling
W
W
van Dokkum
C
C
Bouley
D000328:Adult; D000818:Animals; D053318:Apolipoprotein E3; D001057:Apolipoproteins E / Q000235:genetics; D001786:Blood Glucose / Q000378:metabolism; D002784:Cholesterol / Q000097:blood; D008076:Cholesterol, HDL / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D004311:Double-Blind Method; D005285:Fermentation; D005632:Fructose / Q000008:administration & dosage*; D006801:Humans; D007779:Lactobacillus acidophilus / Q000378:metabolism*; D008055:Lipids / Q000097:blood*; D008297:Male; D008875:Middle Aged; D008892:Milk; D009844:Oligosaccharides / Q000008:administration & dosage*; D014280:Triglycerides / Q000097:blood
D053318:Apolipoprotein E3; D001057:Apolipoproteins E; D001786:Blood Glucose; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D008055:Lipids; D009844:Oligosaccharides; D014280:Triglycerides; D005632:Fructose; D002784:Cholesterol