A YouTuber tried intermittent fasting for 30 days and was shocked by how much his body changed

• YouTuber Cam Jones lost six pounds by intermittent fasting for 30 days.
• He fasted for 16 hours a day and ate normally during the remaining eight.
• Intermittent fasting can lead to weight loss by creating a calorie deficit, but it isn't for everyone.

YouTuber Cam Jones tried intermittent fasting (IF) for 30 days and lost six pounds in the process.

Jones, one half of the Goal Guys, two brothers who make videos about fitness and productivity, decided to try IF after breaking a rib and realizing he wouldn't be able to exercise as much as normal.

IF is a time-restricted eating style where a person will fast for a window of time, and eat normally for the remaining hours of the day. For Jones, that meant fasting for 16 hours and eating for eight.

While Jones struggled with hunger at first and found himself counting down the minutes until he could eat, he eventually got used to skipping breakfast, he said in a YouTube video.

"Holy s***. That's crazy, I'm definitely leaner. Wow! I look good! What the heck?" Jones said in the video when seeing his reflection properly for the first time.

Jones told Insider he didn't intentionally avoid looking at his body throughout the challenge, but he did avoid looking at the before photo until the very end.

"Right before I did my final check-in on day 30, I looked at the before photo for the first time in 30 days, which was really exciting to see the change!" he told Insider.

Jones says he's kept the weight off since completing the challenge and has continued doing IF, although a little more loosely.

Weight loss due to intermittent fasting comes down to being in a calorie deficit

Intermittent fasting can be an effective method for weight loss for some people, but only because it helps them stick to a calorie deficit, experts say.

Jones told Insider his regular breakfast used to be two eggs, two pieces of sourdough toast, a tofu sausage, and an arugula salad. By skipping this meal every day, only consuming black coffee and water in the mornings, he cut his calories.

Initially, Jones made larger meals than normal in his eating window because he thought he'd be hungrier and would need to eat more, but he soon realized his body didn't need it.

"After my first few days, my meals went back to the same as before I started intermittent fasting," he said.

Intermittent fasting is not for everyone and can be unsustainable

Weight loss aside, intermittent fasting has been linked to health benefits such as lowering blood pressure and reducing diabetes risk.

But it doesn't work for everyone. For some people, it can lead to an unhealthy obsession with food, feeling faint, and bingeing in the eating window, dieters previously told Insider.

It can also make it hard to go out for dinners or brunches, so some people find it unsustainable.

IF may also be challenging for people trying to build muscle, as they only have a small window of time to consume calories.