Astronaut Sunita Williams’ significant weight loss after 155 days in space has raised health concerns. NASA officials are closely monitoring her condition as she struggles to maintain her weight in a challenging microgravity environment.

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, 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.

NASA astronaut Sunita Williams shows signs of health decline after six months in space due to a spacecraft malfunction.

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

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.

NASA has addressed growing concerns over astronaut Sunita Williams' health, confirming that all crew members aboard the ISS are in "good health."

Although Williams and Wilmore have maintained a positive public image, a recent photo suggests otherwise, according to Dr. Vinay Gupta, a pulmonologist and expert from Seattle. Dr. Gupta told DailyMail.com, “The picture shows someone who is likely experiencing the stresses of extended stays at high altitudes, even in a pressurized cabin.”