© 1996 Oxford University Press
research-article |
Italian Style Brewed Coffee: Effect on Serum Cholesterol in Young Men



* National Institute of Nutrition via Ardeatina 546, 00178 Rome, Italy.
** University of La Tuscia Viterbo, Italy.
Army Central Hospital and Military Health Headquarters Rome, Italy.
Army Medical School Florence, Italy.
BACKGROUND: Increases in blood lipids have been observed in humans when coffee is brewed by the boiling method. The purpose of this study was to evaluate if giving up Italian coffee might reduce blood cholesterol levels.
METHODS: Eighty-four normolipidaemic young adult males, after a 3-week baseline (BL), were randomly assigned to three different regimens of coffee consumption: espresso (E), mocha (M), and no coffee, but tea (T). The average coffee consumption during intervention (I) was 3.1 ± 1.2 and 2.8 ± 1.1 cups per day for espresso and mocha group respectively (espresso: 2535 ml/cup; mocha: 4050 ml/cup). Total cholesterol, HDL-cholesterol, LDL-cholesterol and triglycerides were measured eight times during the study. Dietary pattern, alcohol consumption, smoking habits, drug use, and anthropometric data were also recorded.
RESULTS: The changes observed in serum cholesterol concentration between baseline and intervention were not statistically different in all groups. The changes were 0.0 mmol/l (T), +0.10 mmol/l (E) and +0.05 mmol/l (M) for total serum cholesterol; 0 mmol/l (T), 0.02 mmol/l (E) and 0.03 mmol/l (M) for HDL-C; 0.13 mmol/l (T), +0.02mmol/l (E) and 0.05 mmol/l (M) for LDL-C. Serum triglycerides showed asignificant increase during intervention (P < 0.01 by ANOVA) in all groups with a change of 0.18 mmol/l, 0.18 mmol/l and 0.22 mmol/l, for tea, espresso and mocha group respectively.
CONCLUSION: The results indicate that coffee brewed in the Italian way does not alter blood levels of total cholesterol HDL-cholesterol and LDL-cholesterol, since no significant differences were observed in these blood parameters after a 6-week break from coffee consumption.
Keywords espresso and mocha coffee, brewing methods, serum cholesterol, intervention study
Revised 1 November 1995