» Drink a lot of coffee? You're more likely to live longer, study finds
Thelle discovered 30 years ago that drinking coffee was linked to “bad” LDL cholesterol to such an extent it was likely “to have detrimental consequences for heart health.” Experiments identified the bad substances in coffee and found they could be removed using a filter. A cup of unfiltered coffee contains about 30 times the concentration of the lipid-raising substances compared to filtered coffee.
“We wondered whether this effect on cholesterol would result in more heart attacks and death from heart disease,” Thelle said.
So, over the course of 20 years, Thelle conducted a study on on a representative sample of the Norwegian population: 508,747 healthy men and women ages 20 to 79.
Participants completed a questionnaire on the amount and type of coffee consumed.
During those 20 years, “46,341 participants died. Of those, 12,621 deaths were due to cardiovascular disease. Of the cardiovascular deaths, 6,202 were caused by a heart attack,” the press release states.
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The study found that drinking filtered coffee was safer than no coffee at all. Filtered coffee was linked with a 15% reduced risk of death from any cause during follow up.
“For death from cardiovascular disease, filtered brew was associated with a 12% decreased risk of death in men and a 20% lowered risk of death in women compared to no coffee. The lowest mortality was among consumers of 1 to 4 cups of filtered coffee per day,” the press release states.
The study also found that unfiltered coffee was worse than filtered brew for death from any cause, death due to cardiovascular disease and deaths from heart attacks.
“Our analysis shows that this was partly because of the cholesterol-increasing effect of unfiltered coffee,” Thelle said.
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