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How an influencer in China lost 60kg in 5 years without weight-loss drugs or crash diets

‘Eat better, be more conscious and move more,’ says Shanghai-based German influencer Thomas Derksen, who weighed around 140kg five years ago

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Thomas Derksen at around 140kg before his weight loss in 2019 and at 83kg in 2025. He lost weight by embracing a healthier lifestyle, focusing on balanced meals and regular exercise. Photo: Thomas Derksen

Scroll through Shanghai-based Thomas Derksen’s Instagram feed from the oldest post to the newest and you will notice a metamorphosis in the Mandarin-speaking German influencer.

In the early days, there were a lot of photos of him enjoying food: a slap-up English breakfast, cookies while working at his laptop, a rich birthday cake in 2018 and what looks like an enormous bacon sandwich in 2019.

Then there is a shift, with fewer photos of heavy meals and more photos that record him seemingly shrinking. The hefty young man grows slimmer and more active: kayaking on a lake, walking his dog and swimming.

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The start of the pandemic was the turning point.
“I started to lose weight when Covid happened,” the 36-year-old says. “I knew I needed to lose weight and that my lifestyle was unhealthy. I had a fatty liver, chest pains and sore joints.
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“Staying at home gave me time to do my research. All the information I needed was available online. There are many free resources. I collected what I found and put it into practice. Some ideas worked for me, some did not.”

Derksen in 2019, when he weighed about 140kg. Photo: Thomas Derksen
Derksen in 2019, when he weighed about 140kg. Photo: Thomas Derksen
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