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@kevinwong My bloods reported that I had Chronic Kidney Disease (Stage 1 Kidney Failure!).

Kidney's do not regenerate, however fortunately for me the abnormal readings were due to Kidney overload processing the huge amount of Protein. I was consuming approximately 200 - 250g per day.

In addition to this I was also told these powders can contain Steroids or Testosterone boosters that can also cause additional problems with the Endocrine system.

I am now treated for low Testosterone. This could also simply be getting older so no concrete proof on the second claim.

I made a small article a while back about my experience

https://steemit.com/life/@stormuk69/the-evils-of-protein-powder-supplementation