The FDA recommends that healthy adults consume no more than 400 milligrams of caffeine per day. This is the equivalent of about four 8-ounce cups of brewed coffee, 10 cans of cola, or two energy drinks. However, some people are more sensitive to the effects of caffeine than others, so it's important to listen to your body and adjust your intake accordingly.
The amount of caffeine that you can take at once varies depending on your individual tolerance. Some people may be able to handle a large dose of caffeine without any problems, while others may experience side effects such as anxiety, insomnia, or headaches. If you're not sure how much caffeine you can handle, it's best to start with a small amount and gradually increase it over time.
Here are some examples of how much caffeine is in common foods and beverages:
Coffee: 8 ounces of brewed coffee contains about 100 milligrams of caffeine.
Tea: 8 ounces of black tea contains about 47 milligrams of caffeine.
Soda: 12 ounces of cola contains about 34 milligrams of caffeine.
Energy drinks: Energy drinks can contain anywhere from 50 to 300 milligrams of caffeine per 8 ounces.
Chocolate: 1 ounce of dark chocolate contains about 15 milligrams of caffeine.
Pain relievers: Some over-the-counter pain relievers, such as Excedrin and Midol, contain caffeine.
If you're pregnant or breastfeeding, it's best to limit your caffeine intake to 200 milligrams per day. Children under the age of 12 should not consume any caffeine.
Here are some of the potential side effects of consuming too much caffeine:
In rare cases, seizures or heart attack
If you experience any of these side effects after consuming caffeine, it's important to reduce your intake or stop consuming it altogether.