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Coffee Side Effects Explained

Coffee Side Effects Explained

We all love our coffee and why wouldn’t we – coffee can be prepared in an almost infinite number of ways: espresso, iced, latte, cappuccino, americano, frappe, etc. Coffee also happens to be one of the world’s greatest natural, readily available and cheapest stimulants – that helps to wake you up in the morning and focus your brain to be more productive throughout the day!

Additionally, coffee is big business – nearly 150 million Americans drink 400 million cups of coffee daily. That’s approximately 50% of the US population drinking roughly 2.6 cups of coffee per day! That’s a lot of coffee consumed every single day but the reality is that when it comes to coffee, it’s not all good. Approximately 1 out of 3 coffee drinkers report at least one negative side effect from their daily coffee drinking!

We’ve outlined below why coffee gives you negative side effects, the most common side effects associated with coffee, and some solutions to manage those side effects. We’ve also presented some alternatives to coffee that will give you all the positive benefits of coffee without any of the negative side effects!

A cup of coffee

Why Does Coffee Have Side Effects

The key ingredient in coffee is caffeine, which is a stimulant that increases activity in the brain and nervous system while also increasing the amount of cortisol and adrenaline circulating in the body.

When used in moderate doses caffeine can boost your energy, focus and productivity, but when you over consume caffeine it can make you feel anxious, jittery, stressed, and cause difficulty sleeping.

Additionally, coffee can wreak havoc on your stomach. Again, caffeine can irate your stomach and intestinal lining, but you also have to worry about coffee acids and other additives that are often used alongside coffee such as milk, cream, sugar, and sweeteners. 


Most Common Side Effects From Coffee


Caffeine boosts alertness through the central nervous system and encourages increased blood flow. Boosting blood flow and heart rate can cause the unwanted sensation of the jitters!

Upset Stomach

The acids in coffee can increase the acidity of your stomach which in turn irates your stomach lining and intestinal tract. Additionally, additives that are often used alongside coffee such as milk, cream, sugar, and sweeteners can have significant negative effects on your gastrointestinal health!

Stress & Anxiety

A 2008 study showed that too much caffeine can take any stress, anxiety, or nervousness you're suffering from and supercharge it. Caffeine has also been shown to decrease the production of the feel-good chemical serotonin in the body, causing a depressed mood.


Caffeine can trigger a headache by narrowing the blood vessels in the brain, followed by the vessels enlarging once you stop drinking caffeine. The sudden increase of blood flow around the brain and associated pressure surrounding nerves can cause a headache.


Caffeine is a stimulant that ultimately “wakes you up” by blocking adenosine receptors in the brain, while at the same time triggering the release of adrenalin. When it comes to sleep, stimulants can often be damaging to your sleep patterns and keep you awake when you need to be resting. 


How to Treat Coffee Side Effects

When it comes to treating the negative side effects of coffee, the number one thing you can do is cut back your consumption. The FDA recommends an adult limit their caffeine intake to no more than 400 mg per day. That’s roughly 4 cups of coffee. If you find yourself going way over that you likely need to cut back.

If you’re drinking five plus cups of coffee because you’ve built up tolerance and need that many cups to still get the same effect that a single cup use to give you, you may want to look for a nootropic like Proper Wild that stacks Caffeine with L-Theanine to supercharge and enhance the benefits of caffeine without any negative side effects!

Additionally, it might not be the actual coffee or caffeine that is bothering you but rather the milk, cream, or sweeteners you're using in your coffee. You may want to try cutting those back or removing them altogether and see if that helps reduce your side effects.

Better Than Coffee - Try Proper Wild

If you love the benefits of coffee: boosted energy, improved focus, increased productivity – but hate the negative side effects that are destroying your body, you should check out Proper Wild’s Clean All Day Energy Shots.

Proper Wild’s shots do contain 100 mg of organic caffeine from green tea leaves but they pair their caffeine with 120 mg of L-Theanine, which is an amino acid naturally found in green tea leaves. When you pair caffeine with L-Theanine in the correct ratios like Proper Wild does, you get all the benefits of caffeine without any of the negative side effects: boosted energy, focus and productivity, with reduced jitters!

Additionally, Proper Wild has been designed to be easy on your stomach. Each shot is only 2.5 fluid ounces and contains NO artificial sweeteners or preservatives – so you can feel good about putting Proper Wild into your body each and every day and not worry about any negative side effects!



We all love coffee but if you're suffering from severe negative side effects from your coffee habit, you may need to consider cutting back your intake or making the switch off of coffee altogether.

If you decide to make the switch off coffee, definitely give Proper Wild a try. While most energy drinks are packed with artificial sweeteners and preservatives that also cause a bunch of health issues – Proper Wild is different. We only use clean, plant-based ingredients that boost your energy and focus without the stomach issues and other nasty side effects!

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