"All NASA astronauts aboard the International Space Station undergo routine medical evaluations, have dedicated flight surgeons monitoring them, and are in good health."

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

Recent photos of NASA astronaut Sunita Williams reveal significant weight loss. What is most visible are her sunken cheekbones, raising worries about her eating habits. There are speculations of her being on a calorie-deficit diet.