Does Regular or Decaf Coffee Dehydrate You

By June 30, 2017

Does Regular Coffee Dehydrated You

It is prevalent in people’s mind that coffee counted among a diuretic boosts the process of urination, making your body lose more fluid. Therefore, plain water and sports drinks are more common ways to get hydrated. As a matter of fact, the two methods mentioned are not the best for water compensation. And you should learn that coffee, whether it caffeinated or decaffeinated, isn’t dehydrating. Results from the research in the U.S have shown that coffee consumed in moderation does a great job in hydrating. Let’s have this in details.

Does Regular Coffee Dehydrated You

regular coffee hydrate you

  • Subjects

50 mid-aged and able-bodied men with regular diet and water intake

  • Requirements

All participants involved in the study are given two trial periods, one is to drink four cups of regular coffee for three days, and the other period is replaced with water;

Factors that may have an indirect effect on the ultimate outcome such as physical exercise, alcohol intake and irregular diet are strictly prohibited;

Records are to be collected by researchers on total body water, total body weight, blood, sodium, potassium and creatinine levels.

  • Result

No significant difference between the two experimental periods in total body water, body weight and blood and urinary makers of hydration.

  • Conclusion

The crucial point for causing dehydration lies in the caffeine content. Where coffee intake within moderate quantities can be transformed to play to hydrating properties as plain water does. Or say, diuretic effect of coffee executes only when you consume large amounts of caffeine for more than 500 milligram, in other words, at least 6 cups of regular coffee daily.

Does Decaf Coffee Dehydrated You

decaf coffee hydrate you

Well, decaffeinated coffee is a typical kind of hydrating beverage since the diuretic qualities from caffeine have been extracted. Practically, it remained more than 1%-2% caffeine content from the original coffee beans. In addition, due to diversified types of coffee beans and differences in the process and methods of removing caffeine, the preserved caffeine content varies; up to 20%. Nevertheless, decaf coffee, with negligible caffeine amount, gains increasingly popularity among younger generation for functioning as a healthier way to hydrate.

Decaf coffee is also known for being a source of antioxidant, which is existed at higher content in caffeinated coffee.

Still some people will choose purified water, fruit with high water content or fresh juice to get body water supplement. While, trend comes that rehydration beverages recommendation has been shifting to sipping two cups of decaf coffee a day. What’s more, advances and experiments in caffeine-free and decaf coffee industry are on the way, which bodes well for more acceptances on coffee property — hydration.

Now, you may know the answer. Both regular and decaf coffee do not dehydrate you under moderate amounts. If you have any questions or perspectives, please edit in the comment boxes below.

Comments (2)



  1. An Americano has a diuretic effect on me after just 1, and especially after 2 cups of coffee.

    37 year old Male.

  2. An Americano has a diuretic effect on my after just 1, and especially after 2 cups of coffee.

    37 year old Male.