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Drinking coffee each morning has several health benefits, but overeating can increase the risk of cardiovascular disease.
A cup of coffee can be exactly what you need to start in the morning.
A second cup should come out, and a third (OK, even a fourth) is likely if you are particularly tired.
But if you often have half a dozen cups or more, you could be preparing for serious health complications, a new study
Australian researchers have found that drinking six or more coffees a day increases the risk of heart disease by 22%.
In the United States, almost half of adults have some form of cardiovascular disease, responsible for
Americans are also drinking more coffee than ever before.
A Reuters survey found that 64% of Americans over the age of 18 consume at least one cup a day. This is up by a few percentage points from the previous year and the highest level in half a decade.
Several previous studies have examined the potential health benefits of hot beer – and there are many – but little has been done to determine when the risks associated with the consumption of the caffeinated beverage began. Outweigh the benefits.
So that's exactly what Dr. Ang Zhou and Professor Elina Hyppönen from the University of South Australia did.
In the first study to test maximum limits for safe coffee consumption in cardiovascular health, researchers looked at the amount of coffee consumed by 347,077 people aged 37 to 73 years. They then compared the total amounts of coffee to the risk of cardiovascular disease.
What they found suggests that the scales are more risky in the sixth cup of coffee and beyond.
"In order to maintain a healthy heart and blood pressure, people must limit their coffee to less than six cups a day – according to our data, the critical point was the tipping point where caffeine began to have a negative effect on cardiovascular risk, "said Hyppönen in a statement. declaration.
Beyond boosting energy, helping you focus and even avoiding yawns in the middle of a work meeting, research has revealed a myriad of cases where a habit with coffee can have beneficial effects on health.
"Coffee is the number one source of antioxidants in the human diet – yes, even with wine and tea," said Vanessa M. Rissetto, MS, RD, CDN at Healthline.
"In addition to caffeine that gives you a feeling of morning energy, these high levels of antioxidants can help protect your body from the damage caused by free radicals, as well as fight against diseases," she said.
And the list of potential diseases and conditions that are less common among coffee drinkers is long.
"Coffee with caffeine is associated with reduced risk of certain cancers and liver diseases," says Kimbre Zahn, MD, Indiana University Health, family physician and sports physician.
Effectively,
"The daily consumption of three cups of coffee, whether caffeinated or decaffeinated, was associated with
"Coffee with caffeine also had a lower risk of cardiovascular disease and stroke, with the greatest benefits being found in people consuming between three and five cups a day."
However, if you do not start preparing a carafe every morning to get these benefits, it's important to understand that coffee is a disproportionate source of caffeine in the American diet, which can lead to many unexpected problems.
"Coffee can cause insomnia, nervousness, agitation, stomach upset, nausea and vomiting, increased heart rate and respiratory rate, as well as any other side effects, "says Rissetto. "Eating large amounts of coffee can also cause headaches, anxiety, agitation, ringing in the ears, and irregular heartbeats."
And now, thanks to the study of Professor Hyppönen and Dr. Zhou, we know that caffeine can cause high blood pressure, a precursor to cardiovascular disease.
It's not just caffeine that can be harmful to a person. Many coffee drinkers load their coffee with cream, sugar or sweeteners and flavoring ingredients that add calories and fat, resulting in many potential health problems.
"The many additions we add to our coffee can have serious health consequences," says Dr. Garth Graham, former Assistant Under-Secretary of the US Department of Health and Human Services and current Chair of the Aetna Foundation. and Vice President for Community Health and Impact for CVS Health.
"Add syrupy flavors to an extra packet of sugar, artificial sugar, milk or cream, then garnish it with a dollop of whipped cream can be a treat from time to time, but those who do regularly increased risk related to excess calories, "he said.
Instead of thinking about coffee in terms of cups – yes, a cup of coffee equals about 8 ounces – think about your consumption in terms of total caffeine.
A cup is generally equivalent to about 70 to 140 milligrams of caffeine.
If you go to the nearest cafe and order a medium or big coffee, it's not always a cup (eight ounces) – it's probably two or even three, and depending on the strength of the roast, it can be even more .
"Although more studies are needed to identify the best amount, we recommend, in general, to consume less than 400 milligrams of caffeine a day, or about four or five cups," says Dr. Zahn.
You can also use online caffeine calculators to take into account all the caffeine you consume.
Do not forget that coffee is not the only source of stimulant. You can also find it in tea, sodas and sometimes in foods.
You can always take your morning coffee – the potential benefits are always real – but if you need a reason to reduce your consumption, this new study will find it.
Once you drink more than six cups a day, you increase your risk of cardiovascular disease, which could erase the potential benefits of your first five cups.
"We can not definitively identify a causal link, and these findings may be more related to other lifestyle choices or consumer behavior," says Dr. Zahn. "Therefore, doctors do not recommend coffee for disease prevention or other health reasons, but we know that the evidence demonstrates the safety of coffee consumption in most cases."
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