Rest is critical when recovering from an illness and the caffeine in coffee can negatively impact your ability to get the sleep you need, explains Reaver. Be sure if you’re drinking coffee that you’re also …

Oct 6, 2023 · “Too much caffeine can be bad for you whether you’ve got a cold or flu or not,” Hassig stated. For infrequent coffee drinkers, it can also be dehydrating in large quantities.

Jul 25, 2025 · “It is perfectly fine to drink coffee with mild or chronic illnesses,” says Dr. Linda Yancey, MD, an infectious diseases specialist at Memorial Hermann Hospital. In fact, Dr. Nachman says...

Nov 1, 2025 · Ultimately, the decision of is caffeine ok with the flu depends on your body's specific needs during illness. While a small cup of coffee might be fine for a mild flu in a regular drinker, for …

Jun 11, 2024 · Here are some reasons you should consider not drinking coffee when sick. 1. Dehydration.

Drinking coffee with the flu is generally safe in moderation but may worsen dehydration and disrupt sleep, so consume cautiously. Coffee is a beloved morning ritual for millions worldwide, prized for its …

May 16, 2025 · When you’re sick with the flu, getting plenty of rest is vital for recovery. Caffeine can interfere with your ability to fall asleep or get quality sleep, which can prolong your illness. …

Apr 8, 2020 · In some people, coffee intake may lead to dehydration as a result of diarrhea or excessive urination. However, some researchers note that caffeine intake at moderate levels — such as 2–3 …

Oct 15, 2023 · In conclusion, while it may seem like a good idea to have a cup of coffee while fighting off the flu, it is not recommended. Caffeine can act as a diuretic, increasing the rate of urination and …

“So, caffeine is a stimulant, and while it’s probably not going to have any impact on the clinical courses, either of a cold or flu or COVID or RSV ... the stimulant nature of caffeine may be counterproductive,” …