1.Vitamin C: In addition to improving calcium absorption rate, it can also promote collagen production and bone strengthening. The fruit that contains the most vitamin C is guava. 100g guava contains 243mg of vitamin C, which is 4 times that of lemon.

2.Carotenoids: Carotenoids can inhibit the bone resorption of mature osteoclasts, and promote bone synthesis, which is beneficial to bone health. Rich in carotenoids such as papaya, mango, tomato.
3.Citric acid: Calcium has a high absorption rate under acidic environment, rich in citric acid such as lemon, orange, kiwi and pineapple.

4.Potassium: Adequate intake of potassium can help maintain bone mineral density and reduce the risk of osteoporosis. Potassium-rich fruits such as bananas, coconuts and pineapples.