Too much coffee? Here’s how to ease the dangerous side effects

Drinking too much coffee can lead to unpleasant and even dangerous side effects. While moderate amounts are generally safe, consuming over 400 mg of coffee in a day—or more than 1,200 mg at once—can trigger serious health issues. Experts suggest simple steps to ease discomfort while the body processes the excess coffee.

A daily intake of up to 400 mg of coffee—roughly two to three 12-ounce cups of coffee—is considered safe for healthy adults. Going beyond this limit can cause jitters, anxiety, digestive problems, a rapid heartbeat, and trouble sleeping. In extreme cases, ingesting over 1,200 mg may lead to toxic effects like seizures.

Symptoms of coffee overload typically fade as the body breaks down and removes the coffee, a process that takes between three and ten hours. Stopping further coffee intake immediately after noticing symptoms allows the body to begin recovering. Eating a meal or snack can also help stabilise the body’s response, particularly if coffee was consumed on an empty stomach. Staying hydrated with water reduces the risk of dehydration, which coffee can worsen. Gentle sensory activities, such as deep breathing or listening to calming music, may ease discomfort while waiting for symptoms to pass. For more severe reactions, contacting a medical professional or Poison Control can offer guidance and reassurance.

Most coffee-related symptoms resolve on their own as the substance leaves the body. Simple measures like hydration, eating, and rest can help manage mild effects. However, severe reactions should always be checked by a healthcare provider to ensure safety.