11 Coffee Drinking Studies + Facts — What Benefits and Risks Should You be Aware of?

As a coffee lover, the last thing on your mind is what benefits you’ll gain from drinking that cup of coffee when you lift it up, or what health risks are associated with it. You just love it, you want it, and you love how it makes you feel, so you have a cup as regularly as you want. 

However, for those who are curious about what it does in their body, it doesn’t hurt to have a look at what conclusions several studies have arrived at regarding coffee and the important facts you need to be aware of as a regular drinker. 

  1. According to the European Journal of Preventive Cardiology, you’re more likely to live longer and less likely to develop cardiovascular disease when you drink 2 to 3 cups of coffee per day, compared to people who don’t drink any. Source
  1. According to a study be carried out by researchers in The Annals of Internal Medicine, you have a 30% lower chance of mortality when you drink coffee daily, ranging from 1.5 to 4.5 cups per day. This is for sweetened coffee with a teaspoon of sugar. The study went on to check if unsweetened cups have the same impact on mortality rate and the results were still positive. Unsweetened coffee drinkers were 16 to 21 percent less likely to die. Finally, having 3 cups per day equated to having the lowest risk of death relative to those who avoid it totally. These mortality rates were observed over a period of 7 years. Source

More Studies 

Here’s a list of coffee studies and their results as published on Harvard.edu. You can read the full details of each study here

  • A 15% lower risk of all-cause death was found in a study of 200,000 participants who drank 3 to 5 cups daily. 
  • In a large study of 500,000 participants, a 16% lower risk of early death was observed among people who drank 6 to 7 cups per day. 
  • Two separate large studies found a link between coffee consumption and a lower risk of developing gallstones in men and women. 
  • Caffeinated coffee reduced the risk of Parkison’s disease by 25% in drinkers, and each additional 300mg of caffeine intake added another 24% decreased risk. This was the result of a systematic review of 26 studies. 
  • National Institutes of Health and American Association of Retired Persons carried out a study to determine the relationship between coffee consumption and depression. The study involving 263,923 revealed that drinking at least 4 cups per day was linked to a nearly 10% lower risk of becoming depressed. Another study from a different organization found a link between increasing coffee consumption and decreasing risk of suicide. 
  • Compared with non-drinkers, a Nurses’ Health Study involving 83,076 women found that there is a 20% lower risk of stroke among coffee drinkers who drink at least 4 cups each day. 
  • Another study of 37,514 women found a link between consuming 2 to 3 cups per day and having a 21% lower risk of heart disease. 
  • A meta-analysis of 21 prospective studies concluded that a 21% lower risk of death caused by cardiovascular disease is found among men and women that consume coffee moderately. 
  • In a study of 45,335 people with type-2 diabetes, a lower risk of developing diabetes was observed as coffee consumption increased. One cup per day reduced the risk to 8%, while 6 daily cups reduced the risk to as much as 33%. 

Hot Vs Iced Coffee Benefits 

So, now that you know how good this wonderful drink is for your body and that the right thing to do Is to keep drinking moderately, you might be wondering whether cold ones have the same benefits as hot ones. Good news — they do. 

According to Harvard Chan researchers, temperature doesn’t affect the nutritional profile of coffee, so serve it cold or hot, you’re most likely getting the same benefits either way. 

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