Grayson Chrisley looks unrecognizable after undergoing a dramatic physical transformation.

Over the span of half a year, the 19-year-old TV star impressively gained 31 pounds of muscle by consistently hitting the gym day in and day out.

Chrisley Knows Best patriarch Todd Chrisley praised his son’s new look after the two enjoyed a joint workout.

Todd revealed to Grayson on the Chrisley Confessions podcast on May 6: “It is such a joy to be able to be in the gym with you to work out. To see you looking the way that you look, you look so good.”

Grayson replied: “Folks, that is all muscle. I was 134 in November-December. I’m 165 right now, so 31 pounds.” Todd admitted: “Well it shows…[You looked] way too skinny.”

The family’s health journey

The TV star shared: “I love food. That’s the hard part. So when I’m on the shot and I can’t eat, I’m like, ‘I really love food.'”

She added: “I love tirzepatid. It doesn’t give me all the side effects that some of these other ones give people. So then I can compare my bloodwork before taking it, and after taking it, and see where my biological age is, how my A1C is, all those things.”