Coffee is one of the most consumed beverages in the world and is appreciated for its taste, aroma, and stimulating effects. It also contains antioxidants and may even support cardiovascular health in some individuals. However, coffee is not suitable for everyone, as its consumption can aggravate certain medical conditions.
Below are three health problems in which coffee may be contraindicated or should be limited, along with explanations and possible alternatives.
1. Gastritis and Stomach Ulcers
Gastritis and stomach ulcers damage the stomach lining, causing inflammation, pain, and digestive discomfort such as heartburn and bloating.
Why coffee can be an issue
Coffee contains caffeine and chlorogenic acids, which stimulate the secretion of hydrochloric acid in the stomach. This increase in acidity can irritate the already inflamed lining and worsen symptoms. In cases of active ulcers, it may even slow healing.
Recommendations
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Individuals with active gastritis or ulcers are often advised to reduce or avoid both caffeinated and decaffeinated coffee, as both can be acidic.
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Consider gentler alternatives such as:
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Chamomile tea (soothing and anti-inflammatory)
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Oat water (digestive benefits)
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A balanced diet that avoids irritants like fried foods, spicy foods, and citrus fruits can also support symptom relief.
2. Sleep Disorders
Conditions such as insomnia or fragmented sleep can be worsened by the stimulating effects of caffeine.
Why coffee can interfere with sleep
Caffeine blocks adenosine, a compound that promotes relaxation and sleepiness. When consumed—especially in the afternoon or evening—it can make falling asleep more difficult, reduce sleep depth, and disrupt sleep patterns.
Recommendations
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Avoid coffee later in the day, and consider eliminating it altogether if sleep issues are severe.
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Relaxing alternatives include:
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Valerian
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Passionflower
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Linden (tilia) tea
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Improving sleep hygiene—such as reducing screen time before bed—can also significantly enhance sleep quality.
3. Cardiac Arrhythmias
Cardiac arrhythmias are disturbances in heart rhythm that may involve palpitations, rapid heartbeat, or irregular beats.
Why coffee may worsen symptoms
Caffeine can increase heart rate and stimulate the sympathetic nervous system. In sensitive individuals, this may trigger palpitations or exacerbate existing arrhythmias.
Recommendations
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People who notice arrhythmia symptoms after consuming coffee should limit or avoid caffeine, including sources such as black tea, energy drinks, and some soft drinks.
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Suitable alternatives include:
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Rooibos, a naturally caffeine-free herbal infusion rich in antioxidants
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Regular follow-ups with a cardiologist are important to adjust lifestyle recommendations based on individual response and overall heart health.
Final Considerations
Although coffee is widely enjoyed, it may not be appropriate for everyone. Individuals with gastritis, sleep disorders, or heart arrhythmias should be particularly cautious, as coffee can sometimes worsen symptoms or interfere with treatment.
Fortunately, many gentle and healthy alternatives exist. As always, consulting a healthcare professional is the best way to make informed and personalized decisions about coffee consumption.
