Drinking cola can negatively affect bone health. Cola contains phosphoric acid, and excessive intake of phosphoric acid can interfere with the body's ability to absorb calcium. Calcium is crucial for maintaining healthy bones. Regularly drinking large amounts of cola could lead to calcium loss and increase the risk of osteoporosis. Occasional consumption is not a big problem, but to maintain bone health, it is advisable to avoid frequent and excessive cola intake, and instead, drink milk and eat calcium-rich foods.