Q: For a space habitat astronaut’s diet on a Mars mission, which fat-soluble vitamin is essential for calcium regulation and bone health due to limited sunlight exposure?

Sat, 02 May 2026 20:03:05 +0000

Q: For a Mars mission astronaut’s diet, which fat-soluble vitamin is essential for calcium regulation and bone health due to limited sunlight exposure? --- ### Critical Fat-Soluble Vitamin for Bone Health in Space: The Role of Vitamin D Astronauts embarking on long-duration missions, especially on extended stays on Mars, face unique nutritional challenges—chief among them is the risk of bone mineral density loss triggered by microgravity and reduced sunlight exposure. Among the essential nutrients for maintaining strong bones, Vitamin D stands out as the fat-soluble vitamin critical for calcium regulation and skeletal health.