George Prior drank 10 Cokes per day for 30 days to show the negative heath effects of excessive soda consumption and gained 23 pounds.
Normally Prior sticks to a paleo diet but decided to divert from it to prove the danger of sugar.
"'But,' you're probably thinking, 'Everyone knows it wouldn't be healthy to drink ten cokes a day, and, besides, I only drink four Cokes a day," wrote Prior on his website.
"That's true, perhaps you're only drinking four Cokes, but if you add in the two glasses of orange juice, the two sweetened coffee drinks from Starbucks, the 16-ounce Odwalla drink, the two 'healthy' brand ice teas and the $9 fruit smoothie you waited 10 minutes in life for, you've made my 10 Cokes look like child's play."
According to the CDC, one in four Americans drink at least one regular soda or fruit drink per day.
Prior started the experiment at 168 pounds and 300 Cokes and 30 days later, he was 23 pounds heavier with a 7 percent body fat increase.
In addition to being a cause of obesity, excessive soda consumption can also cause other health problems like diabetes. There have also been links between sodas and carcinogens.
Prior said in addition to the weight gain, he also had high blood pressure and intense sugar cravings.
Once Prior stopped drinking the Cokes, he dropped five pounds in four days.