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The Tromsø heart study: coffee consumption and serum lipid concentrations in men with hypercholesterolaemia: an
Insights
Reducing coffee intake significantly lowers serum cholesterol in men with hypercholesterolaemia. Filter coffee appears to maintain lower cholesterol levels, unlike boiled coffee, suggesting brewing method impacts results.
Area of Science:
- Cardiology
- Nutritional Science
- Metabolic Health
Background:
- Hypercholesterolaemia is a significant risk factor for cardiovascular disease.
- Coffee consumption is widespread, and its impact on lipid profiles warrants investigation.
- Previous studies have yielded mixed results regarding coffee's effect on cholesterol.
Purpose of the Study:
- To evaluate the impact of coffee abstinence and consumption of different coffee brewing methods on serum cholesterol levels.
- To determine if coffee brewing methods influence cholesterol concentrations in hypercholesterolaemic individuals.
Main Methods:
- A 10-week randomized controlled trial involving 33 men with hypercholesterolaemia.
- Participants were assigned to groups: continued coffee intake, complete abstinence, or a five-week abstinence followed by consumption of either boiled or filter coffee.
- Serum cholesterol concentrations were monitored throughout the trial.
Main Results:
- Cholesterol levels significantly decreased in all participants who abstained from coffee for the initial five weeks.
- Continued abstinence for 10 weeks led to further cholesterol reduction.
- Serum cholesterol increased upon resuming boiled coffee but remained stable with filter coffee consumption.
Conclusions:
- Abstaining from heavy coffee consumption is an effective strategy for reducing serum cholesterol in men with hypercholesterolaemia.
- The brewing method of coffee may influence its effect on serum cholesterol concentrations.
- Further research is needed to fully understand the relationship between coffee brewing methods and cholesterol levels.
Abstract:
In a 10 week trial to assess the effects of coffee consumption and coffee brewing methods on serum cholesterol concentrations 33 men with hypercholesterolaemia were randomly assigned to: continue with their usual coffee intake; stop drinking coffee altogether; or stop drinking coffee for five weeks, thereafter drinking either boiled or filter coffee. Cholesterol concentrations fell significantly in all subjects abstaining for the first five weeks compared with subjects not giving up and continued to fall in those abstaining for 10 weeks. Cholesterol concentrations rose again in subjects returning to boiled coffee but remained the same in those returning to filter coffee. Abstention from heavy coffee drinking is an efficient way of reducing serum cholesterol concentrations in men with hypercholesterolaemia. The extent to which the brewing method affects this relation requires further study.