Singaporean teenage activist Amos Yee has assured supporters that he is not suffering from anorexia by posting a video of himself eating.

Yee, who spent more than two months in detention after posting a video critical of the country’s founding prime minister Lee Kwan-yew, said on Facebook: “For anyone who’s been wondering. Don’t worry, I’ve started eating again.”

For anyone who’s been wondering. Don’t worry, I’ve started eating again 🙂

Posted by Amos Yee on Thursday, July 9, 2015

The 16-year-old was hospitalised briefly due to low blood sugar levels ahead of his sentencing earlier this month, prompting concerns about his health.

In the 13-second video, Yee slowly picks up what appears to be a single Malteser chocolate and wordlessly puts it in his mouth. The video received more than 6,500 “likes” since it was posted on Friday.

Amos Yee YouTube.

Yee was sentenced to four weeks in prison on July 6 after he was found guilty of wounding the religious feelings of Christians and of uploading a cartoon image featuring Lee Kwan-yew and former British prime minister Margaret Thatcher in a sexual position.

The picture has been rated “obscene” by Hong Kong’s Obscene Articles Tribunal and is banned from publication, according to a notice put out by the Tribunal on Saturday.

In the original video that led to his arrest, Yee criticised Lee’s “totalitarian” rule, which the teenager said had turned Singapore into a “rich but depressed” country. Yee also compared Lee’s supporters to Christians whose faith compels them to blindly follow authority.

Vivienne Zeng is a journalist from China with three years' experience covering Hong Kong and mainland affairs. She has an MA in journalism from the University of Hong Kong. Her work has been featured on outlets such as Al Jazeera+ and MSNBC.