The court is still out on this substance. It did show some results in mice, but it wasn’t a blind test nor were the results that good.
A distant relative of mine was fed this stuff in an attempt to cure his cancer and it was high grade and cost a fortune. It made him sick as a dog most of the time, he coughed up blood sometimes and it had no effect. He died as per consultants prognosis and scans showed no effect from ingesting this stuff.
My personal advice is stay away since it’s big business for many, including American companies who are making large profits out of grief. Just like the fads for massive doses of Vit C et al.
There are a few trials up and running, but nothing conclusive as yet, just as with Turmeric, when hospitals use it, then it works. If not, don’t believe it….