Is drinking coffee everyday bad?

In this text we will provide the answer to the question: “Is drinking coffee everyday bad?”. In addition, we will discuss the possible harms of excessive coffee consumption and the recommended intake per day.

Is drinking coffee everyday bad?

No, drinking coffee every day is okay. However, we must be aware of the daily doses consumed. Let’s see the reasons.

Caffeine is a psychoactive substance that directly affects the brain and can generate symptoms similar to generalized anxiety in sensitive people.

According to the FDA (Food and Drugs Association), a dose of 1 to 2 grams of the substance can already cause serious intoxication in the body, causing effects such as tachycardia, disorientation, hallucinations and breakdown of muscle tissue. Quantities close to 5 g can lead to death.

In the opinion of the head of the Psychiatry sector at the Sainte Anne hospital in Paris, specialized in chemical dependency, the professional explains that intoxication caused by coffee can occur in individuals with greater sensitivity to the substance, usually with anxious profiles.

What is caffeine?

Caffeine is a substance that is produced naturally in the leaves and seeds of many plants. It can also be made artificially so that it can be added to certain foods. It is considered a stimulant substance because it activates the central nervous system, increasing the level of alertness. But we should be aware that it is possible to have caffeine intoxication.

Present in coffee, green tea, chocolate, soft drinks, energy drinks and supplements for athletes, caffeine is a safe substance and is widely consumed on a daily basis due to its stimulating power. 

However, the compound can also cause irritation, impair sleep, alter your heart rate and cause serious damage to the body. Therefore, like any stimulant, it should not be taken in excess.

How much caffeine is safe?

The recommended daily amount of caffeine is 400 mg, which equals about 600 ml of coffee. However, espresso coffee typically contains a higher concentration of caffeine, and this amount can easily be achieved using energy drinks or capsule supplements.

We must keep in mind that daily caffeine consumption can vary from person to person, with some being more sensitive to caffeine and others less sensitive. That said, we have to be careful to account for caffeine from all foods ingested, such as energy drinks and chocolates, since it is a mistake to count just how many cups of coffee you drink on a daily basis.

What are the effects of drinking too much coffee?

The effects of excessive coffee intake go beyond nausea, as the person can have fatigue, panic attacks and anxiety, dizziness and headaches, in addition to other symptoms.

The maximum recommended dose for a healthy 70 kg adult is approximately 400 mg per day, between 4 to 5 cups of coffee or 3 to 4 espressos.

What to do if I feel nauseous after drinking coffee?

To relieve the symptoms of nausea and recover faster, it is important to have an easy-to-digest diet and eat in small amounts and slowly, as this will prevent the worsening of nausea and malaise, for example.

Adequate hydration is essential, whether with coconut water, sports drinks or even fruit juice, as long as the consumption of industrialized juices, especially apple and grape juice, is avoided.

What researchers say about this topic?

Researcher Julie Carrier is scientific director of the Canadian network on sleep and biological rhythm at the University of Montreal. Studies carried out in his laboratory have shown that coffee affects sleep, even when consumed in small amounts.

“People, in general, know that caffeine can make it difficult to sleep or make them wake up at night, but few people are aware that the substance reduces the so-called deep and slow sleep”, she says.

Even among people who consider themselves ‘resistant’ to coffee, there are changes in the structure of sleep. The specialist and her team studied the effects of caffeine on the brain of adults over 40 years of age, as the quality of deep sleep tends to naturally decrease. 

The 75 participants consumed between two and three coffees daily. The result showed that, regardless of individual sensitivity, coffee interfered with the so-called ‘deep sleep brain architecture’.


In this text we provided the answer to the question: “Is drinking coffee everyday bad?”. In addition, we discussed the possible harms of excessive coffee consumption and the recommended intake per day.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.