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

Mar 8, 2017 ... Caffeine is used daily by millions of people to increase wakefulness, alleviate fatigue, ... Up to 400 milligrams (mg) of caffeine a day appears to be safe for most healthy adults. ... Adolescents should limit caffeine consumption.

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

Aug 14, 2017 ... Extremely high daily intakes of 1,000 mg or more per day have been ... Researchers gave 12 healthy adults 400 mg of caffeine either six hours ...

https://www.fda.gov/consumers/consumer-updates/spilling-beans-how-much-caffeine-too-much

Dec 12, 2018 ... According to scientists at the FDA, caffeine can be part of a healthy diet for most ... Caffeine in energy drinks can range from 40-250 mg per 8 fluid ounces. ... For healthy adults, the FDA has cited 400 milligrams a day—that's about ... health care provider about whether you need to limit caffeine consumption.

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

Apr 17, 2018 ... For healthy adults, up to 400 mg/day caffeine is considered safe. ... planning to become pregnant limit their intake to 200 mg of caffeine per day.

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

Dec 3, 2018 ... Calculate your daily maximum for any drink here. ... be recommended. If you want to reduce your caffeine intake (or quit entirely), here's how: 1.

https://www.ncbi.nlm.nih.gov/books/NBK223789/

These daily intakes are within the safe limit set by the prior sanction in 1959. .... of 403 healthy premenopausal women, heavy caffeine consumption (more than ...

https://www.coffeeandhealth.org/topic-overview/guidelines-on-caffeine-intake/

EFSA, in its 2015 Scientific Opinion on Caffeine recommends that, in pregnant or lactating women, caffeine intake should be decreased to 200mg per day from ...

https://www.menshealth.com/health/a19546105/caffeine-recommendations/

Apr 24, 2017 ... (Tally up your daily consumption with the caffeine chart from the Center ... So if you're coming close to the daily max—and especially if you're ...

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. ... Here's what you need to know about the risks of caffeine consumption and how not to overdo it. ... drinking three to five cups per day could actually be part of a healthy ... Going above 400 mg daily, the recommended dose for adults, can ...

https://www.livestrong.com/article/471513-the-maximum-daily-dosage-of-caffeine/

Depending on your own sensitivity to caffeine, you could max out with a single ... Her daily caffeine consumption for the two-year period topped out at about 1 g, ...