WASHINGTON – Waking up with coffee or sipping soda throughout the day are just a few of the ways people get their caffeine fix.
First, the good news: Doctors at Mayo Clinic say 300 milligrams of caffeine a day is OK for most people.
Now, the bad news: Besides causing insomnia, headaches or anxiety … caffeine is prevalent in a variety of products that consumers may not know about.
The May issue of ShopSmart lists examples of caffeine counts in various products.
Dark chocolate: With 37.5 mg per one bar, it contains about twice the caffeine of milk chocolate, which has 36 mg per 3 bars.
Black tea: One cup has 55 mg, which is more than Diet Coke, 46.5 mg. Diet Coke, in turn, has more caffeine than does Diet Pepsi, which has 35 mg.
Regular Coke: At 34 mg, this soda has the least amount of caffeine when it comes to cola.
Espresso: Two ounces has 127 mg, about the same as one Extra Strength Excedrin, 130 mg.
Regular coffee: One cup has 95 mg of caffeine. That’s more than in a RockStar energy drink, 80 mg, and Red Bull, 76 mg. ShopSmart notes energy drinks can also contain ingredients that act as stimulants such as guarana and taurine.
Dunkin Donuts drip coffee: A 20 oz cup has 244 mg, compared with a Venti Starbucks bold drip, which has 415 mg.
WTOP’s Kristi King contributed to this report. Follow Kristi and WTOP on Twitter.