How would atrophic gastritis exacerbate osteoporosis?

Atrophic gastritis, characterized by the thinning of the stomach lining and reduced gastric acid production, can impair the absorption of essential nutrients, particularly calcium and vitamin B12. Since calcium is crucial for bone health, its malabsorption may lead to decreased bone density, increasing the risk of osteoporosis. Additionally, vitamin B12 deficiency can affect bone metabolism and overall health, further exacerbating the risk of osteoporosis. Consequently, individuals with atrophic gastritis may be more susceptible to weakened bones and fractures.