Which lifestyle modification is recommended to prevent osteoporosis?

Engaging in regular weight-bearing exercise is instrumental in preventing osteoporosis because such activities stimulate bone formation and help maintain bone density. Weight-bearing exercises include activities like walking, jogging, dancing, and strength training. These exercises promote bone health by forcing the bones to work against gravity, which can lead to increased bone strength and decreased risk of fractures.

In contrast, avoiding exercise would diminish bone health, as physical activity is critical for maintaining bone mass. Reducing calcium intake negatively impacts bone density since calcium is essential for bone formation and maintenance. Increasing alcohol consumption can have a detrimental effect on bone health as excessive alcohol intake can interfere with the body's ability to absorb calcium and can also lead to decreased bone formation. Therefore, incorporating regular weight-bearing exercise is a scientifically-supported method to help prevent osteoporosis.