Question

which factor contributes to the development of osteoporosis?
genetics
lack of calcium
naturally occurring exposure
ingestion of gluten products

Explanation:

Calcium is essential for bone health. A lack of calcium intake can lead to weakened bones, a key characteristic of osteoporosis. Genetics can play a role but is not as directly linked as calcium deficiency. Natural exposure (assuming sunlight for vitamin D, which helps calcium absorption) is more about facilitating calcium use rather than a direct cause of osteoporosis like lack of calcium. Ingestion of gluten products is not a recognized direct factor in osteoporosis development.

Answer:

lack of calcium