Coffee, with the main ingredient being caffeine, can cause many unwanted effects on the body when suffering from the flu. Caffeine has a diuretic effect, increasing urine output and leading to dehydration, which can aggravate flu symptoms.
People with influenza A should avoid drinking coffee for the following reasons:
Dehydration:
Coffee contains caffeine, which has a diuretic effect, meaning it can increase urine output and lead to dehydration. When you have the flu, your body needs to be hydrated to support your recovery. Dehydration can aggravate flu symptoms.
Stomach irritation:
Coffee is acidic, can irritate the stomach and increase discomfort, especially if you already have stomach or digestive problems.
Increased heart rate and anxiety:
Caffeine can increase your heart rate and cause anxiety, which is not beneficial when the body is trying to recover from the flu.
Interaction with drugs:
Caffeine can interact with some flu medications, reducing the effectiveness of the drug or causing unwanted side effects.
Instead of drinking coffee, you should drink plenty of water, diluted fruit juice or caffeine-free drinks to keep your body hydrated and support the recovery process.