Marcell Jacobs started working with a nutritionist and won a Gold Medal in Tokyo.
Josh Kerr started working with a nutritionist and he will win a Gold in Paris.
Josh Kerr is extremely thin AND didn't lose his power, as we saw it today.
Same for Marcell Jacobs.
Josh Kerr used to have a double chin in the NCAA, but if you look at his pics from Budapest 2023 he STILL looks fat compared to now. He has never been this fit