A frequently asked question is whether coffee can count as part of the daily water intake the body needs. Despite its global popularity, coffee is often thought to cause dehydration due to its caffeine content. However, recent studies paint a different picture.
According to an American study conducted by the Harvard School of Public Health in Boston, coffee does not cause dehydration as commonly believed. It can be considered a good source of fluids when consumed in moderation. Its caffeine has a mild diuretic effect, but this isn’t strong enough to cause significant fluid losses, especially in people who drink coffee regularly.
Another study published on Verywell Health confirms that coffee, which is more than 95% water, contributes to the body’s hydration and does not cause dehydration when consumed in moderation, making it an acceptable part of total daily fluid intake.
Dr. Dan Friedman, a nutrition professor at Harvard, commented:
“Coffee is essentially made of water, so it helps hydrate the body, especially when consumed without added sugar or cream.”
Moderation to Avoid Side Effects
That said, experts, including the U.S. Food and Drug Administration (FDA), emphasize the importance of moderation. Excessive caffeine intake—more than 500 mg per day, which is about five cups of coffee—can lead to side effects such as insomnia, anxiety, and increased urination, though not necessarily severe dehydration.
On the other hand, coffee offers additional health benefits, as it contains antioxidants like polyphenols, which help reduce inflammation and improve heart health. The American Heart Association notes that moderate coffee consumption may reduce the risk of heart disease and type 2 diabetes.
In conclusion, coffee can be included in your daily fluid intake, but it’s best to diversify your hydration sources—such as water, tea, and natural juices. Moderation is always the best approach, and paying attention to your body’s signals is more important than sticking strictly to a certain number of cups.
Source: DW Arabic