Spirolina works great, but it will also remove vitamins and other minerals from your system. If you use it you should take a multi vitamin daily. I take a vitamin in the morning and spirolina at nite. I also use cilantro for seasoning frequently. I had my lead level tested and it was 31, the Dr. told me I had to quit shooting. He never suggested any method to reduce the level. At about that time Chicken George was posting about elevated lead levels and ways to reduce it. I started with the spirolina and cilantro and in 6 weeks the level dropped to 24. During that period of time I had at least a 2 day shoot every weekend.
I went to Tucson for a consult and they asked me all the usual questions and told me I was doing the right things and to get it checked again in a year. They did stress the fact that if a chelating agent is used a multi vitamin must be taken.