A NEW HEALTH REVIEW FINDS 400 MILLIGRAMS OF CAFFEINE A DAY WON'T HURT YOU. THAT IS TWO MEDIUM COFFEES, 8 CANS OF COKE OR 40 CUPS OF HOT CHOCOLATE. THE AVERAGE PERSON TAKES LESS THAN 300 MILLIGRAMS BUT PROBABLY DOESN'T KNOW THE EXACT AMOUNT. HOW MUCH CAFFEINE IS IN OUR DRINKS? GOOD QUESTION. HEATHER BROWN FOUND OUT HER ONE DIET COKE A DAY HABIT ISN'T CLOSE TO A CUP OF COFFEE. Reporter: THERE ARE FEW PLACES BETTER THAN HAMLINE TO CONDUCT A POP QUIZ. THANK YOU FOR TAKING PART IN OUR TEST. OF COURSE. NO PROBLEM. Reporter: YOU GET SMART. HEAVILY CAFFEINATED STUDENTS PREPPING FOR EXAMS. DURING FINALS WEEKS, 4-5 A DAY, MAYBE. YES, ESPECIALLY IN THE FORM OF RED BULL. EXTRA SHOTS OF ESPRESSO. Reporter: THEIR TEST HAD 9 DRINKS STARTING WITH BLACK TEA. WE HAVE A GREEN TEA AND HOT CHOCOLATE.
DIET COKE. DARK ROAST COFFEE. A PEPSI, 5-HOUR ENERGY. DIET MOUNTAIN DUE. AND A RED BULL. OKAY. Reporter: PUT THEM IN ORDER OF MOST CAFFEINE TO LEAST. I KNOW COFFEE HAS A DECENT AMOUNT. I NEVER DRINK THIS BECAUSE I AM SCARED. I DON'T KNOW HOW ACCURATE THAT IS. THIS IS A LUT OF PRESSURE. Reporter: VERY CLOSE. WE WILL HAVE TO DO A A LITTLE SWITCHING. HOW WRONG AM I? Reporter: THE 5-HOUR ENERGY IS FIRST WITH 200 MILLIGRAMS. WHAT DO YOU THING ABOUT THIS? SWITCHING THE COFFEE WITH THE RED BULL? THAT DOES MAKE SENSE. Reporter: AS A TEA DRINKER WE WILL MOVE THIS GUY OVER HERE. NO. Reporter: YES. MY GOSH. Reporter: THEN COME THE SODAS, DIET MOUNTAIN DUE HAS SLIGHTLY MORE THAN THE OTHERS.
REGULAR DIET, DOES IT MATTER? I DON'T THINK SO, I THINK IT IS MORE THE BRAND I WENT WITH. Reporter: YEAH, YOU ARE RIGHT. IT IS. IT DEPENDS ON THE SODA. GREEN TEA, SECOND TO LAST, AND THEN HOT CHOCOLATE DOESN'T HAVE ALL THAT MUCH, JUST A LITTLE BIT. OKAY. WE HAVE THE RIGHT ORDER. SO LETS SEE HOW THEY COMPARE. YOU CAN SEE COFFEE AND BLACK TEA ARE NUMBER TWO AND NUMBER FOUR. BUT ON AVERAGE COFFEE HAS 3 TO 4 TIMES THE CAFFEINE. LIGHT ROAST HAS MORE CAFFEINE THAN DARK ROAST. I FEEL LIKE I HAVE BEEN DECEIVED BY THE NAME. Reporter: HOW MUCH IS TOO MUCH RETHER BROWN… WHEN THE STARBUCKS PEOPLE START TO RECOGNIZE ME. Reporter: WCCO 4 NEWS. COFFEE IS ALL OVER THE PLACE WHEN IT COMES TO CAFFEINE, HEATHER USED AN AVERAGE. THERE IS A NEW COFFEE ON THE MARKET CALLED DEATH WISH.
ADVERTISED A THE WORLD'S STRONGEST COFFEE AT 702 MILLIGRAMS OF CAFFEINE FOR A 12-OUNCE CUP, ALMOST TWICE THE RECOMMENDED DAILY AMOUNT. Reporter: WOW..
