Williams, who has been on the ISS since June, has experienced weight loss during her extended mission, prompting NASA to ramp up nutritional support efforts. Initially scheduled for an eight-day mission, Williams, 59, and her fellow astronaut Barry Wilmore were stranded due to technical issues with the Boeing Starliner.

Sunita Williams's extended stay on the International Space Station has led to alarming weight loss, prompting NASA to prioritise her health.

NASA doctors started working with Williams about a month ago to help her pack on the pounds — even before the viral images caused global concern about her health, a source said.

Williams was supposed to spend eight days in space, but her Boeing Starliner spacecraft faced some technical issues and delayed her return to Earth until February 2025.

This statement follows reports suggesting that Williams might be experiencing health challenges due to her extended stay on the ISS

NASA is monitoring astronaut Sunita Williams health following significant weight loss during an extended mission on the International Space Station.

Soon after Sunita Williams' “gaunt” transformation led doctors to raise health alarms, NASA reiterated the safety of those on board the ISS.

Amid public concern, NASA said the Starliner astronauts and the other five spacefarers living in orbit "undergo routine medical evaluations."

Astronaut Sunita Williams has lost significant weight during her extended mission aboard the ISS. Now, NASA is focusing on stabilising her weight after technical issues delayed her return, but reassures that routine medical checks are in place.