Alex Fong Lik Sun (方力申) attended a basketball tournament in Cheung Sha Wan and said he would personally participate in the challenge.
Earlier, Alex practiced basketball with Louis Cheung (張繼聰) MR and others, but said he had less time to practice on this occasion because he had to shoot an underwear commercial in Mainland China.
To be fit, he lost 30 pounds (13.6kg) for the commercial and sighed that the overall process was very tiring, reports an article on Asian E-News Portal.
"Not eating is not a problem, but the most difficult thing is not drinking water! I couldn't even remember my 3-day plan, especially what I had to do for the next day. I just felt dizzy".
Check out the gallery for more weight loss transformations among celebs.