David Johnson adopted a plant-based diet approximately a month ago after watching two food documentaries on Netflix.

Johnson and his wife watched "What the Health" and "Forks Over Knives." 

Johnson realized quickly as training camp began in late July that sticking with a strict plant-based diet caused him to lose more weight than he intended. He reported to training camp at 223 pounds, lighter than he had been in the past. Johnson is ranked as the No. 1 pick in fantasy football drafts by RealGM.

"It wasn't as hard as I thought it would be," Johnson said. "I thought it would definitely be hard just because, as Americans, we're taught to eat a whole bunch of meat. It's not even just eating meat, it's the portions. What I've learned is that we're taught eating like 24 ounces of steak is a manly thing, when really you're only supposed to eat 8 to 10 as a portion."

Johnson now eats about six small meals a day instead of the three or four he had when he wasn't following a plant-based diet. Between meals he snacks on nuts, mainly cashews.

"That's another way to get my calories," he said. "Some of that stuff also has protein in it."

Aaron Rodgers and Tom Brady have converted to either a completely or partially plant-based diet.