When you’ve ordered a latte or a cappuccino at Starbucks, you’ve probably watched as the barista wipes down the steamer before whipping up a new cup. This is meant to fight bacteria, but you may be getting something extra in your drink that you probably don’t want. “What you don’t realize is that sanitizing solution ends up in your frothed milk! It’s not a ton, but it is there—a small amount on that wand for every frothed carafe! So avoiding lattes is a good choice if that concerns you,” Immer says. Or just prepare yours at home to make sure you’re not getting more than you bargained for. This is the healthiest coffee you can drink.
While they say that the results support moderate coffee drinking as a relatively healthy habit, both Poole and Guallar say the findings don’t go far enough to prompt anyone to change their coffee-drinking habits in the hopes of improving their health. The study did not confirm, for example, that people who do not currently drink coffee should start adding a cup or two a day in order to lower their risk of getting heart disease or any of the other chronic conditions studied. The data also do not support the idea that current coffee drinkers should drink even more coffee to enhance whatever benefits they might be receiving. Too much coffee, the data suggest, starts to bend the benefit curve back down.
Long term consumption of coffee has also been shown to reduce, although moderately, the risk of stroke (38). Another study pointed out that drinking about five or six cups of coffee a day is associated with the greatest reduction (39) (36%) in stroke risk, and that coffee also contributes to overall reduction of cardiovascular mortality (a less scary way of saying “heart death”).
Bladder and pancreatic cancer. Studies performed more than 30 years ago suggested a potential link between coffee consumption and cancers of the bladder, pancreas, and possibly others. Since then, better research has largely refuted these concerns. In fact, some of the older studies raising red flags about a cancer link have since been used as examples of “fishing expeditions” and weak research methodology.
Coffee doesn’t only help reduce the risk of developing melanoma—it does the same for basal cell carcinoma too, which affects millions of people every year. A 2012 study of 113,000 participants published by the American Association for Cancer Research found those who drank a minimum of three cups of coffee a day had a 20 percent lower risk of developing the skin cancer than those who didn’t.
If your focus is weight loss, green coffee extract could be an effective aid. Following a 22-week study of 16 overweight adults, researchers discovered participants given green coffee bean extract had undergone significant weight loss with 37.5% of them transitioning from being at a pre-obesity weight to a normal weight range. If you’re battling the bulge, consider complementing your workouts by looking at the green bean capsule aisle of your local health nutrition store.
Parkinson's is a disease of the central nervous system characterized by tremors (and you've probably heard that Michael J. Fox has it). Scientists are still figuring out what combination of environmental and genetic factors causes some people to develop this disease, but some preliminary research suggests caffeine may have a protective benefit against it. In a 2017 literature review published in the Archives of Medical Science, researchers concluded that people who drink moderate amounts of coffee seem to have lower rates of Parkinson's, but they couldn't pinpoint why.
When a group of volunteers received a dose of 100 milligrams (mg) of caffeine, about as much contained in a single cup of coffee, Austrian researchers found a surge in the volunteers’ brain activity, measured by functional magnetic resonance imagery (fMRI), as they performed a memory task. The researchers noted that the memory skills and reaction times of the caffeinated volunteers were also improved when compared to the control group who received a placebo and showed no increase in brain activity.
5-HIA, an organic acid and component of the neurotransmitter serotonin (the happy chemical) seen in the urine tends to be elevated in coffee drinkers, which means they may be at risk for lower levels of serotonin synthesis in the brain. Serotonin is necessary for normal sleep, bowel function, mood, and energy levels. It is a vicious cycle, as caffeine can disrupt sleep and promote anxiety and depression. We all know someone who tends to be tired, wired and over-caffeinated!
Need a little boost to get you through your HIIT workout? A 2013 study from PLoS One shows that athletes who consumed coffee an hour before exercise had greater performance than those who drank decaffeinated coffee. Plus, a 2015 study from the International Journal of Sport Nutrition and Exercise Metabolism suggests that people who drink coffee before a workout burn more calories after exercise, also known as EPOC (excess post-exercise oxygen consumption). This means that even if your spin class is over, your body will continue to burn more calories. We’ll drink to that! ☕