Read 3 articles and stand to win rewards
Spin the wheel now
Up until eight years ago, Dr Tan See Leng was overweight, tipping the scales at 128kg at one point.
Even for someone tall - he's 1.8m - he was, in his own words, "really big".
Please subscribe or log in to continue reading the full article.
*Terms and conditions apply.
Join ST's Telegram channel here and get the latest breaking news delivered to you.
We have been experiencing some problems with subscriber log-ins and apologise for the inconvenience caused. Until we resolve the issues, subscribers need not log in to access ST Digital articles. But a log-in is still required for our PDFs.