I would beg to differ here. It is well known that lead in all forms is poisonous / toxic and harmful. It's why we no longer use lead in petrol, plumbing and paint. And there is a growing body of scientific literature that is showing very clear links between lead and other heavy metals in your blood and likelihood of developing many of the very nasty and as yet untreatable cancers.
The trouble with modern medicine is that define threshold levels and for lead the level to considered Toxic is really quite high. Taking a scale of 1 being lead level in stone age man, most of us now have a level of 1,000 and toxic level is 4,000 - ie you are suffering from accute lead poisoning.
Early forms of Chemotherapy actually used chelating drugs to remove heavy metals from the blood, but all the excitement and value of new chemo drugs rather superceeded all he early work and not much work has been done in this area until the last few years. One of my clients is working in this area so I have an inside knowledge of what is going on and how they are establishing a causal link between lead in the blood, blood cancers and treatment regimes on reducing. This article was published in 2017, my clients are working on the results of this work
Pioneering Ground-Breaking Cancer Research | Cancer Recovery Foundation.
The results were published in early 2020 -
https://onlinelibrary.wiley.com/doi/abs/10.1002/ajh.25731 - you can download the full text of the article.
The worrying thing is, is the low concentration of metals that are causing issues. On the above scale we are talking levels of 1,500 to 2,000 causing major issues. Or put it another way, how many of your friends and family who shoot are suffering or have died from some form of blood or lung cancers?
The positive is that early pre-clinical studies are showing good results - if anybody is seriously interested in finding out more drop me a PM.
Given that there is now published scientific literature in major journals (such as the American Journal of Haematology) it will be very difficult, if not totally irresponsible for regulators to ignore such evidence.