You probably know this, but don't forget to have her wash her hands after every reloading session. You never know what sort of dust is on the bullets, and it's easy to accumulate too much of any metal.
My wife had an issue with nerves (before I got into reloading) that was the result of high copper levels. She found a natural type doctor who tested for toxic metals, and she had several that were pretty high. So she did a chelation therapy that reduced the levels and was able to avoid meds. I figured the copper came from chlorine dissolving copper from copper pipes - for many it's not an issue, but she is sensitive to environmental toxins - like a canary in a mine.
