Yes. My mom is 20 years diabetes patient and she started taking lingzhi 2 years ago and it did wonderful job for her.
Lingzhi not only help in reactivating the sensitivity of pancreas to produce more insulin, it also help to reduce the side effect of drugs that she is taking. Most importantly, it help to product the major organs likeyes, heart, kidney, livers, limbs, therefore prevent complications that can be life threatening.
My mom also enjoy much better quality of life after she started on Lingzhi. She is more energetic, able to eat more freely (she had some extremely sweet fruits and her blood sugar doesn't peak ), her legs is not dark anymore.
Thank God that she has met Lingzhi at the right time.