What happens if you drink a lot of coffee?

In this text we will answer the question: “What happens if you drink a lot of coffee?”. In addition, we will discuss how much coffee is too much coffee and the harms and benefits of drinking coffee.

What happens if you drink a lot of coffee?

Excess of coffee (and consequently caffeine) can generate panic attacks, dizziness, diarrhea and frequent urge to urinate. Usually, when we have substance-induced problems, there is a sensitization: that is, we can have different sensations with smaller and smaller doses. Prudence is needed. 

How much coffee is a lot?

More than 4 cups of coffee for a healthy adult (with 70 kg) is a lot. However, its value depends. For example, for children and teens, more than 1 cup of coffee, it’s already a lot. For pregnant and lactating women and for people with caffeine sensitivity, more than 2 cups is a lot.

It is worth remembering that caffeine is present in cocoa, guarana and some teas. Therefore, caffeine from coffee should not be counted only, but from everything we consume in the day (for example: chocolate, chocolate milk, soda based on guarana or cola, tea, etc).

What is the maximum number of coffees we can drink per day?

It is considered safe to consume up to 400 mg of caffeine a day for healthy people — considering the substance present in the food and in the supplement. This amount equates to about 3 to 4 cups of coffee.

Also, to make your coffee more beneficial for your health, you should avoid adding sugar. In the first few days you can put only half of the package and gradually reduce the amount. At a certain point you won’t even notice that you don’t put sugar in your coffee.

Since a packet of sugar is about seven grams, if you drank three coffees a day, you would be ingesting 15 grams. By not adding it, you will cut this daily value. In a year, that means 5475 grams less sugar. The same applies to tea.

How many cups of coffee can kill you?

The lethal dose of caffeine, experts say, is about 150 milligrams of caffeine per pound of your body. So if you’re, say, a woman weighing around 70 pounds, you’d have to ingest 14,000 milligrams of caffeine.

This amount equates to about 70 cups of coffee – which would have to be taken in one sitting for the toxicity to take effect.

However, not exaggerating coffee intake can bring numerous health benefits, such as: lower incidence of ringing in the ear, reduced risk of liver cancer and disease prevention.

Is drinking coffee in moderation good for your health?

Drinking coffee regularly in a moderate way (maximum 3 cups a day) can bring a number of health benefits, you know? That’s because the drink is a source of caffeine and antioxidant compounds that can significantly improve the immune system. 

But to really enjoy the benefits of the drink, an important tip is to use healthier alternatives of sweetener, such as xylitol, demerara sugar, coconut, brown or even honey or molasses. 

It is also worth mentioning that there are different types of coffee, which vary mainly in the type of preparation – they can be increased with cocoa, cinnamon and coconut milk, for example. It’s worth trying different versions! Want to know how coffee is good for your health?

Coffee is good for those who want to burn calories

A great advantage of coffee is that it has a strong thermogenic action – that is, it helps to speed up metabolism and, consequently, contributes to the calorie burning process. 

In addition, the drink usually stimulates the production of bile acids, which fulfill digestive functions and help control cholesterol. In short, coffee optimizes the functioning of the intestine and, therefore, also helps to speed up metabolism.

Caffeine acts as an energy stimulant

Caffeine works as an important psychostimulant, giving the body more energy. The substance helps to ward off fatigue and also improves performance in physical exercises. Therefore, the ideal is always to consume coffee preferably pure or together with a healthier sweetener.

Coffee is good for memory health and concentration

Coffee stimulates the proper functioning of the brain, contributing to the main cognitive functions. That is, it helps to increase the ability to concentrate, memory and even reasoning. 

But for the drink to have such an effect, it must be consumed without exaggeration. That’s because too much caffeine can cause stomach upset and other unwanted symptoms.


In this text we answered the question: “What happens if you drink a lot of coffee?”. In addition, we discussed how much coffee is too much coffee and the harms and benefits of drinking coffee.



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.