For many people, coffee is a daily staple we rely on to feel energized and focused. And while you may love it for the caffeine, experts say drinking coffee is good for your heart too (if you drink the right amount).
People used to think coffee was bad for heart health. It was thought to increase abnormal heart rhythms (arrhythmias), raise cholesterol and blood pressure, and increase your risk of heart attack and disease. But recent research shows this actually isn't the case, and in fact, the opposite may be true.
Video of the Day
5 Ways Coffee May Benefit Your Heart
When it comes to heart health, the benefits of coffee may come as a surprise. Here are a few important ones to take note of.
1. It's Tied to Lower Heart Disease Risk Factors
New research exploring coffee drinking and heart disease risk shows that sipping your morning brew is probably protecting your heart in a few ways.
Drinking 2 to 3 cups (a cup referring to an 8-ounce serving) of decaffeinated, ground or instant coffee was associated with a significantly lower risk of heart disease and all-cause mortality, according to a large September 2022 study in the European Journal of Preventative Cardiology. Ground and instant but not decaffeinated coffee were associated with a lower risk of arrhythmia.
2. It's Associated With a Lower Risk of Heart Failure
Heart failure is a progressive form of heart disease that prevents the heart from effectively pumping blood through the body. Risk factors for heart failure include uncontrolled type 2 diabetes and high blood pressure.
Some studies have shown a negative association between the cups of coffee people drink and their risk of heart failure, according to a February 2021 review in Circulation: Heart Failure. When compared to people who drank no coffee, those who had 1 cup per day had a 5 to 12 percent drop in heart failure risk, while those who sipped 2 cups had a 30 percent lower risk.
Interestingly, decaf coffee doesn't offer the same benefits. In fact, drinking decaf coffee increases the risk of heart disease, according to results published in the same study.
3. It's High in Antioxidants
Inflammation is a major contributor to heart disease and many other chronic illnesses. Antioxidants are nutrients that fight inflammation in the body by neutralizing cell-damaging free radicals, according to Hopkins Medicine.
Coffee is rich in antioxidants, which have been linked to a lower risk of conditions like heart disease and type 2 diabetes, according to the American Heart Association.
What's more, if you love the taste of coffee it may be one of the easiest ways to get heart-healthy antioxidants into your diet. Most of the dietary antioxidants we take in come from beverages like tea and coffee, according to an October 2014 study in the Journal of Nutritional Science.
4. It May Rev Your Metabolism
A few sips of coffee can make you feel energized and alert, but there's also some evidence coffee can affect your metabolism and even play an important role in fat loss, which ultimately affects your heart health.
An older study in the American Journal of Physiology showed caffeine increases metabolism and fat burning. More recent research supports these findings, showing a more specific association between drinking 4 cups of coffee per day and significant fat loss, according to the Harvard T.H. Chan School of Public Health.
Add to that, caffeine can also improve physical performance, according to an older meta-analysis in the International Journal of Sports Nutrition and Exercise Metabolism.
It also helps to fend off tiredness, and most people can agree, that you're more likely to be physically active when you feel energized.
That's good news for your heart because practicing regular moderate exercise is linked to a lower risk of heart failure, per August 2022 research in Circulation.
5. It's Associated With Improved Cholesterol
Drinking black coffee was associated with a positive effect on HDL cholesterol levels, according to November 2020 research in the Journal of Multiplidiscinary Healthcare.
HDL cholesterol is known as the "good" one because it helps remove bad cholesterol from your bloodstream, which ultimately lowers your risk of heart disease, according to the Mayo Clinic.
But the relationship between coffee and cholesterol is a bit more complicated. Coffee contains natural oils from the coffee bean called diterpenes, and these have been tied and LDL cholesterol, according to the Institute for Scientific Information on Coffee (ISIC).
The amount of diterpenes in coffee varies with the brewing method, though. Coffee brewed through a filter will have less of these oils, while unfiltered coffee will have more.
An August 2018 study conducted at Emory University School of Medicine in Georgia, shows that people with HDL cholesterol levels of 41–60 milligrams per decilitre have the lowest risk of heart disease.
How Much Coffee Should You Drink?
Drinking too much caffeine from coffee can cause issues like insomnia and anxiety, yet if you don't drink enough, you might not see a major difference.
"There is a dose-related effect, in that too little or too much coffee does not provide significant health benefits," says Adedapo Iluyomade, MD, a cardiologist at Baptist Health Miami Cardiac and Vascular Institute. "Two to three cups is where the heart-health benefits seem to occur."
All types of coffee — including ground, decaf and instant — were linked to a lower risk of heart-disease-related incidents and death in a September 2022 study in the European Journal of Preventative Cardiology. The effects were observed in people who drank 2 to 3 cups of coffee per day.
"Some doctors advise people with heart disease to avoid coffee completely, perhaps because caffeine may stimulate the sympathetic nervous system and potentially raise heart rate and blood pressure. But more recent studies show that moderate amounts of coffee are okay for most people," he suggests.
Stick with 2 to 3 cups of coffee if you can tolerate the caffeine to get the heart health benefits. If you have an existing heart condition, talk to your doctor before adding more coffee to your diet.
Making Coffee Heart-Healthy
The way you take your coffee may affect the health benefits.
"The most nutritious way to drink coffee is plain with nothing added — also known as drinking it black," Iluyomade says. "Ideally, you shouldn't put sugar in your coffee or other additives that are often rich in calories, carbohydrates and fat."
Diets high in added sugar may cause inflammation in the body, and remember, inflammation is a contributing factor to heart disease, according to Harvard Health Publishing.
People who drank sugar-sweetened beverages raised their risk of heart disease by 20 percent in a May 2020 Journal of the American Heart Association study.
Full-fat dairy products, like cow's milk and whipped cream, have some saturated fat. Having too much saturated fat in your diet can lead to high LDL cholesterol, a risk factor for heart disease. Try using these in moderation, or opting for black coffee.
- Effects of caffeine on energy metabolism, heart rate, and methylxanthine metabolism in lean and obese women
- Effects of caffeine ingestion on exercise testing: a meta-analysis
- Too much of a good thing? Very high levels of “good” cholesterol may be harmful
- Association of dairy intake with cardiovascular disease and mortality in 21 countries from five continents (PURE)
- Polyphenols: food sources and bioavailability
- Coffee and beverages are the major contributors to polyphenol consumption from food and beverages in Japanese middle-aged women
- impact of coffee subtypes on incident cardiovascular disease, arrhythmias, and mortality: long-term outcomes from the UK Biobank
- Stress effects on the body
- International Journal of Molecular Sciences: The Mitochondria A Target of Polyphenols in the Treatment of Diabetic Cardiomyopathy
- Hopkins Medicine: Fight Inflammation to Help Prevent Heart Disease
- American Heart Association: Is Coffee Good for You Or Not?
- Journal of Multidisciplinary Healthcare; Changes in High-Density Lipoprotein Cholesterol Levels in Relation to Coffee Consumption Among Taiwanese Adults
- Harvard TH Chan School of Public Health: Four cups of coffee a day associated with modest loss of body fat
- Circulation: Association Between Device-Measured Physical Activity and Incident Heart Failure: A Prospective Cohort Study of 94 739 UK Biobank Participants
- Harvard Health Publishing: The sweet danger of sugar
- European Journal of Preventative Cardiology: The impact of coffee subtypes on incident cardiovascular disease, arrhythmias, and mortality
- Institute for Scientific Information on Coffee: Coffee and Cardiovascular Health