Here’s news for all those who are planning to opt for weight loss surgery, a recently conducted study from Taiwan suggests that weight loss surgery can actually make your bones very fragile, which increases the risk of fractures.

Study’s senior author Dr. Kuo-Chin Huang of the College of Medicine at National Taiwan University in Taipei said in a statement that a person undergoing weight loss procedure loses several essential nutrients.

In an email Huang said, “The commonly lost nutrients are vitamin D and calcium, which are related to the development of osteoporosis. And maybe there are other mechanisms associated with the development of fracture”.

Huang and his colleagues who presented their findings in the journal Medicine said in the last decade the use of bariatric surgery has increased almost seven times. Some previously conducted studies have shown that bariatric surgery brings an increased risk of bone fractures.

During a national insurance debate, the team identifies around 2,064 patients who underwent bariatric surgery between 2001 and 2009, and compared them with 5,027 similarly obese patients who did not have the surgeries.

They found that people who had weight loss surgery had a 21% higher risk of breaking a bone in the next five years.

They further found that the added risk was higher among people who underwent ‘malabsorptive’ procedures that prevent food from being absorbed, such as gastric bypass. These individuals were 47% at higher risk to experience a fracture during 12 years of follow-up compared to those who did not have surgery.