Philadelphia Eagles Tim Tebow fitness & training secrets: star quarterback shares new diet for ripped muscles

American football quarterback Tim Tebow is currently a free agent after parting ways with the Philadelphia Eagles in September. But, the popular athlete widely known for his philanthropic and open pronouncements of his Christian faith is making the most of his time outside the playing field as a college football analyst for ESPN's SEC Nation.

While, there are some rumors of NFL teams reportedly eyeing him for a roster spot amid various injuries from quarterbacks in the league, nothing concrete has panned out so far. Tebow, for the meantime, surely looks like he is keeping himself in shape for a possible call up.

Tebow's photos of his more ripped figure have been circulating the web lately, and the 28-year-old former Broncos, Jets and Patriots credits his transformation to his ketogenic diet—a kind of diet that advocates eating low-carb, high-fat foods.

"A lot of people would think that's very boring, and sometimes it is, but you find ways to really spice it up," he says. "I eat a lot of things that run, swim or fly; I eat a lot of greens, a lot of Greek yogurt, a lot of avocado," Tebow told Delish.com.

He also revealed his typical food day to Delish which includes eggs for breakfast, such as an omelet with spinach, ham, bacon, and sausage or a scramble with avocado. For his lunch and dinner, he usually has Greek yogurt or guacamole, lean meats like chicken, steak and salmon, and healthy veggies like asparagus, spinach or avocado.

"I usually eat until I'm full," he added. "I mean, you don't want to overdo it, but I think eating the right things is more important than portion control. If I'm eating the right things, they're going to fill me up with the right amount of fat and protein."

Tebow's ketogenic diet means eating a lot of healthy fats, moderate protein, very few carbs and hardly any sugar, which gives him a steady dose of energy without the fluctuations in his blood sugar and insulin levels.

According to Celebrity Health and Fitness, research suggests that this diet not only helps accelerate weight loss but also prevents inflammation in the body which may cause diseases like cancer, diabetes, heart disease and Alzheimer's.

Ketogenic diet goes against the usual eating habit of most athletes who go into carb-loading for the needed energy requirement. But recently, more and more athletes, like long-distance runners, cyclists, and triathletes, have shifted their diet to low-carb and high-fat after experiencing improvements on their performance.