https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/caffeine/art-20045678

Mar 8, 2017 ... Find out how much is too much and if you need to curb your consumption. ... Up to 400 milligrams (mg) of caffeine a day appears to be safe for ...

https://www.healthline.com/nutrition/caffeine-side-effects

Aug 14, 2017 ... Some can consume much more caffeine than others without ... Extremely high daily intakes of 1,000 mg or more per day have been reported to ...

https://www.fda.gov/forconsumers/consumerupdates/ucm350570.htm

Dec 13, 2018 ... How do you know how much caffeine a food or beverage contains? ... For healthy adults, the FDA has cited 400 milligrams a day—that's about ...

https://www.caffeineinformer.com/caffeine-safe-limits

Dec 3, 2018 ... Caffeine safe limits for adults, children, and those with medical conditions. ... In summary, most experts agree that consuming 200 mg or less of caffeine a day equates to very ... How Much Caffeine Are Americans Consuming?

https://examine.com/nutrition/caffeine-consumption/

Apr 17, 2018 ... For healthy adults, up to 400 mg/day caffeine is considered safe. Pregnant or breastfeeding women are advised to consume no more than 200 ...

https://www.sleep.org/articles/how-much-caffiene-should-i-have/

In terms of how much caffeine you should have, the general consensus is that up to 500 milligrams per day—or roughly the equivalent of four eight-ounce cups ...

https://www.medicalnewstoday.com/articles/322933.php

Jan 16, 2019 ... Although too much caffeine can cause unpleasant side effects, ... adults may consume up to 400 mg of caffeine a day as part of their diet.

https://www.vox.com/science-and-health/2017/5/17/15649722/caffeine-overdose-health-risks-coffee-energy-drinks

May 17, 2017 ... It's very difficult to consume toxic levels of caffeine from drinks alone. ... 12 to 18 years old stay below 100 mg of caffeine a day, or one cup of coffee. ... like powdered caffeine, pack mega-doses of caffeine, much higher than ...

https://www.inc.com/business-insider/coffee-caffeine-heart-health-how-much-should-you-drink-healhty.html

Jun 22, 2018 ... A team of German researchers studied the effects of caffeine in heart health. ... much caffeine we should drink each day to see the best benefits.

https://simple.wikipedia.org/wiki/Caffeine

250–300 mg of caffeine a day is a moderate amount. That is as much caffeine that is in three cups of coffee (8oz each ...