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[Home](https://www.themanual.com/) 2. [Food & Drink](https://www.themanual.com/food-and-drink/) 3. [Evergreens](https://www.themanual.com/food-and-drink/evergreens/) # How much coffee is too much? How to tell if you’re consuming too much caffeine ## Everything in moderation, right? By [Emily Caldwell](https://www.themanual.com/users/elisner/) Published December 11, 2024 Save  [Yanapi Senaud / Unsplash](https://unsplash.com/photos/person-pouring-coffee-beans-on-a-machine-6HR8vpjYUHo) Sip after sip, cup after cup, it’s easy to get carried away sipping on your favorite brew throughout the day. The casual coffee drinker may start with just one cup per day, which can slowly turn into three or four cups once you crave the unique flavor or the caffeine jolt coffee offers. Soon, this can make you ask, “How much coffee is too much?” At the same time, several studies boast the health benefits of coffee and suggest that [drinking coffee may even be good for you](https://www.themanual.com/food-and-drink/benefits-of-coffee/). Alas, finding the line between too much coffee and just enough coffee can be challenging to identify. How many cups can you safely consume before your coffee habits become questionable? Is there a limit that is universal to everyone? Here’s what you need to know about moderating your coffee consumption. Recommended Videos ## How much coffee is too much?  [Heewei Lee / Unsplash](https://unsplash.com/photos/person-pouring-coffee-on-white-ceramic-mug-N8FUz1PF9F4) According to the [Food and Drug Administration](https://www.fda.gov/consumers/consumer-updates/spilling-beans-how-much-caffeine-too-much) recommendation, most healthy adults can safely consume up to 400 mg of caffeine daily. For reference, this equals about four cups of regular coffee, each containing about 100 mg per cup. However, this blanket recommendation does not apply to those with heart conditions or taking certain medications that can interfere with caffeine. Four cups of coffee seems like more than enough for one day. However, the huge variety of coffee products on the market today makes it easier to exceed this limit quickly. For example, ready-to-drink coffee beverages like [RISE nitro cold brew](https://www.themanual.com/food-and-drink/rise-brewing-nitro-cold-brew/) contain 180 milligrams of caffeine per can, roughly the equivalent of two cups of regular coffee. Coffee drinkers should also consider caffeine that comes from other sources, which all factor into the 400 mg daily limit. For example, if you also consume energy [drinks](https://www.themanual.com/drinks/), pre-workout drinks, sodas, or teas, you might quickly exceed the recommended daily limit of caffeine. ## Signs you’re drinking too much coffee  [raggio5 / Pixabay](https://pixabay.com/photos/coffee-breakfast-food-cup-dawn-3293499/) Tracking your caffeine consumption down to the milligram isn’t always possible, especially when grabbing coffee on the go. However, if you’re consuming too much coffee — you’ll know it. Paying attention to the signs and symptoms of excessive caffeine consumption can be your hint when it’s time to cut back. One tell-tale sign you may be consuming too much coffee is difficulty sleeping. You might also notice you feel increasingly irritable, nervous, or anxious. These symptoms occur because caffeine acts as a central nervous system stimulant and causes your body to release adrenaline. In some people, this can cause a rapid heart rate or the “caffeine jitters.” Additionally, drinking too much coffee can wreak havoc on your heart, causing palpations and issues with blood pressure. Another common sign you’re consuming too much coffee is frequent headaches. If you can’t make it through the day without reaching for another cup of coffee repeatedly, you may be experiencing caffeine withdrawal symptoms. To fight this, try gradually reducing your coffee consumption instead of making drastic changes too fast. The conclusion: If you consistently notice these symptoms after having several cups per day, it’s probably time to tone down your coffee consumption. ## Consuming too much decaf coffee  [Elizabeth Tsung / Unsplash](https://unsplash.com/photos/person-holding-white-ceramic-tea-cup-tXW7gPCgkc0) Usually, the question “How much coffee is too much?” is based on the potential risk of consuming too much caffeine. However, this can also lead to a secondary question about consuming too much decaf coffee. Switching to decaf or [half caff coffee](https://www.themanual.com/food-and-drink/what-is-half-caff-coffee/) is a healthful option to reduce caffeine consumption. Half caff coffee contains about 40 to 50 mg of caffeine per cup, providing a slight boost of energy for your afternoon slump with about half the caffeine of a regular cup of coffee. However, frequently, coffee drinkers may wonder if they can consume too much decaf coffee. Consuming three to five cups of decaf coffee daily is unlikely to cause any harm, but you may experience some teeth staining. Also, drinking too much coffee can cause stomach upset or interfere with your ability to consume enough water. ## Caffeine sensitivity  [Toni Cuenca / Pexels](https://www.pexels.com/photo/coffee-mug-surrounded-with-coffee-beans-585753/) Coffee sensitivity, or caffeine sensitivity, refers to how each person’s body responds to drinking coffee. These sensitivity limits can vary greatly from person to person, primarily due to genetic differences. While a person with normal caffeine sensitivity can safely consume up to 400 milligrams of caffeine daily, this limit may be lowered for others with extreme sensitivity. [Studies](https://pubmed.ncbi.nlm.nih.gov/39438936/#:~:text=Several%20genes%20that%20were%20involved,of%203%25%20to%2032%25%20in) have found that some people may have a gene that makes them ultra susceptible to caffeine, which means their liver takes longer than normal to process and eliminate caffeine from the body. Ultimately, the “right” amount of coffee daily depends on your body and how it reacts to caffeine. If you’re new to coffee drinking, it may be easier to determine how it affects you. Seasoned coffee drinkers may begin not to notice the effects of overconsumption (or keep drinking right through them because coffee is so delicious). However, keeping a log or notes on how much coffee you consume, on average, can help you hone in on the right amount for your body.  [Emily Caldwell](https://www.themanual.com/users/elisner/) Contributor [instagram](https://instagram.com/travelingmadeperfect) [linkedin](https://www.linkedin.com/in/emilylisner1) Emily is a freelance journalist with a focus on food, travel, health, and fitness content. She loves to travel to new… Topics - [Coffee & Tea](https://www.themanual.com/food-and-drink/coffee-and-tea/) - [Food & Drink](https://www.themanual.com/food-and-drink/) Celebrate Dry January with Upstate Elevator’s new THC spirit Upstate Elevator is launching the perfect THC spirit for tequila drinkers  If you’re celebrating Dry January, are sober-curious, or simply interested in alcohol alternatives, and you’re looking for something to imbibe instead of your usual rum, whiskey, or tequila, the folks at Upstate Elevator have the perfect replacement beverage. Known for its cannabinoid beverages, the brand recently announced the launch of its first-ever zero-proof THC Spirit. Upstate Elevator Añejo Lime THC Spirit [Read more](https://www.themanual.com/food-and-drink/celebrate-dry-january-with-upstate-elevators-new-thc-spirit/) - [Deals](https://www.themanual.com/deals/) Save \$150 on a Breville espresso machine built for easier, more consistent shots Save \$150 on Breville’s Barista Express Impress, a semi-automatic machine that keeps espresso less fussy  Espresso machines can get expensive fast, and the biggest hurdle for most people isn’t the price; it’s the learning curve. That’s why a discount on a “makes the process easier” model is worth paying attention to. The Breville Barista Express Impress is down to \$649.95 (was \$799.95), saving you \$150. If you want café-style espresso at home without turning every morning into a project, this is one of the more practical Breville machines to buy on sale. get the deal [Read more](https://www.themanual.com/deals/breville-espresso-machine-deal/) - [Food & Drink](https://www.themanual.com/food-and-drink/) Starbucks rings in 2026 with new winter drinks New Starbucks drinks to kick off 2026  From the Strawberry Matcha to the Delta-Inspired Cookie Drink, 2025 was an innovative year in the world of Starbucks. This year, Starbucks is wasting no time ringing in the new year with exciting new drinks. This year, Starbucks is kicking off 2026 with a fresh take on the classic winter menu, available in stores starting January 6. Caramel beverages [Read more](https://www.themanual.com/food-and-drink/starbucks-2026-winter-menu/) ## More Food and Drink  ### [What is an iced cappuccino? The cool twist on a cozy classic](https://www.themanual.com/food-and-drink/iced-cappuccino/)  ### [Dark roast vs. medium roast coffee: The real difference in flavor](https://www.themanual.com/food-and-drink/dark-roast-vs-medium-roast-coffee/)  ### [How to roast coffee beans: A beginner’s guide](https://www.themanual.com/food-and-drink/how-to-roast-coffee-beans/)  ### [I asked experts if drinking coffee helps you lose weight — here’s the truth](https://www.themanual.com/food-and-drink/is-drinking-coffee-good-for-weight-loss/)  ### [Say hello to the Italian pilsner](https://www.themanual.com/food-and-drink/what-is-an-italian-pilsner/)  **Upgrade your inbox: sign-up for our newsletters** Check your inbox\! [Privacy Policy](https://www.dtmg.co/privacy-policy) **The Essential Guide for Men**The Manual is simple — we show men how to live a life that is more engaged. 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