The health benefits of drinking coffee are well documented, even before you factor in the morning caffeine lift so many people rely on. But when it comes to decaf coffee versus regular coffee, is one actually better for you?
The main difference is caffeine.
“The primary difference between regular coffee and decaf coffee is that in decaf coffee, the beans undergo a process in which the caffeine is extracted before they are roasted,” explains registered dietitian Anar Allidina.
That process does not remove all caffeine, but it gets close.
“Decaffeinated coffee generally contains about 2 to 10 milligrams (mg) of caffeine per 8-ounce cup, depending on the bean type and decaffeination method,” says registered dietitian Vicki Koenig. “Brewed coffee typically contains approximately 95 to 165 mg of caffeine per 8-ounce cup.”
So, are there other key differences between decaf and regular coffee? Here is how they compare in terms of nutrients, possible downsides and overall health benefits.
Decaf coffee vs regular coffee: is one healthier?
In short, coffee can be part of a healthy diet for many people.
Coffee beans are rich in antioxidants, including polyphenols, chlorogenic acid and ferulic acid. While caffeine has its own effects, many of coffee’s health benefits appear to come from these plant compounds. They are not removed during the decaffeination process, which means decaf can still offer many of the same benefits as regular coffee, Allidina says. It simply does not have the same stimulant effect.
Koenig agrees.
“Numerous studies indicate that both caffeinated and decaffeinated coffee are associated with lower all-cause mortality,” she says. “This supports the belief that the non-caffeine compounds contribute to the observed health benefits. There are more than 100 different compounds in coffee besides caffeine!”
That means the healthiest choice often depends less on whether your coffee is regular or decaf, and more on how your body responds to caffeine.
If caffeine leaves you jittery, anxious, wired at night, or dealing with reflux, decaf may be the better fit. If you tolerate caffeine well and enjoy the energy boost, regular coffee can still be a healthy option.
Benefits of drinking coffee
Coffee has been studied extensively, and regular intake has been linked with a range of potential health benefits.
Research suggests coffee consumption may help:
- reduce the risk of developing type 2 diabetes
- lower the risk of chronic kidney disease
- support longevity
- reduce the risk of liver disease
- lower the risk of heart attack and stroke
- support a healthier gut microbiome
- help fight inflammation
- slow cognitive decline
Caffeine may play a role in some of these benefits, but it is only one of many compounds in coffee that may support health. That means you are likely to get many of coffee’s perks whether you choose regular or decaf.
The key is how you drink it. A plain coffee, or coffee with a little milk, is different from a large sweetened drink loaded with syrups, cream and added sugar. Those extras can change the overall health profile quickly.
For most people, either regular or decaf coffee can fit into a balanced routine. The best choice is the one that supports your energy, sleep, digestion and mood.
Possible drawbacks of decaf coffee
Decaf and regular coffee may offer many of the same benefits, but they have slightly different downsides.
Decaf still contains a small amount of caffeine, but usually not enough to give you the same energy lift as regular coffee. If you are drinking coffee mainly for alertness, decaf may not do much.
On the other hand, if you are very sensitive to caffeine, even decaf may be enough to cause symptoms, depending on the brew. Koenig says some people may still notice side effects such as jitters.
That does not mean decaf is a bad choice. It simply means it is not always completely caffeine-free, so it is worth paying attention to how your body responds.
Possible drawbacks of regular coffee
The main downside of regular coffee is caffeine.
“Agitation, anxiety, palpitations, chest discomfort, gastrointestinal distress, insomnia, and nervousness are sometimes experienced when drinking regular coffee,” says Koenig.
These effects are more likely with higher caffeine intake, such as more than six cups of coffee a day, or in older adults, she says.
Caffeine can also be habit-forming.
“An abrupt change or decrease in caffeinated coffee can cause withdrawal symptoms,” Koenig says.
Those symptoms may include headaches, fatigue, irritability, low mood, or trouble concentrating.
Some people may need to limit caffeine or avoid it. That can include people who are pregnant or breastfeeding, people with sleep disorders, migraines, anxiety, arrhythmia, or high blood pressure, and people who take medicines that may worsen caffeine side effects, such as stimulants.
If you are unsure how much caffeine is right for you, speak with your GP, pharmacist, or accredited practising dietitian.
The bottom line
Most of coffee’s health benefits appear to come from antioxidants and other plant compounds, which are found in both regular and decaf coffee.
That means neither one is automatically healthier for everyone. The better choice depends on your caffeine tolerance, sleep, anxiety, digestion, blood pressure, medications and whether you actually want the stimulant effect.
Regular coffee may suit you if you tolerate caffeine well and enjoy the energy boost. Decaf may be the better choice if caffeine affects your sleep, makes you anxious, triggers reflux, or leaves you feeling jittery.
How you drink it matters too. Coffee with a little milk is very different from a large sweetened drink with syrups, whipped cream, or lots of added sugar. Those extras can reduce the health benefits, whether the coffee is regular or decaf.
For most people, both can fit into a healthy routine. The smartest option is the one that supports your body, your sleep and your day.
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