Is Creatine Safe ? Creatine could cause testicular cancer, experts warn!

Creatine could cause testicular cancer, experts warn!

Creatine the most talked about supplement used by muscle enthusiasts all over the world may increase the risk of developing testicular cancer.

A new study at Yale University found a link between  pills and powders containing creatine or androstenedione and a higher risk of the disease - by up to 65 per cent.


Men who started taking the supplements before the age of 25, or took more than one type and used them for three years or more, were most likely to be diagnosed with cancer.


Professor Tongzhang Zheng, who led the study at Yale University said: 'The observed relationship was strong.

'If you used at earlier age, you had a higher risk. If you used them longer, you had a higher risk.

'If you used multiple types, you had a higher risk.

The researchers were compelled to investigate the possible link after past evidence showing some supplement ingredients damage the testes.

Testicular cancer incidence rose to 5.9 cases per 100,000 men in 2011, from 3.7 cases in 100,000 in 1975, Professor Zheng said.

But scientists are not sure what is behind the increase.

Professor Zheng, said: 'Testicular cancer is a very mysterious cancer,' he said. 'None of the factors we've suspected can explain the increase.'

Professor Russ Hauser, of the Harvard school of public health and a collaborator on the study, said: 'Our study found that supplement use was related to a higher risk of developing testicular cancer.

'These results are important because there are few identified modifiable risk factors for testicular cancer.'

Researchers conducted detailed interviews of nearly 900 men from Massachusetts and Connecticut.

Of those, 356 had been diagnosed with testicular germ cell cancer, and 513 had not.

Read more: http://www.dailymail.co.uk/health/article-3038444/Muscle-building-supplements-containing-creatine-cause-testicular-cancer-experts-warn.html