These are red blood cells which have lost their haemoglobin, and the result is a feeling of fatigue. The spleen works overtime to pump out more red blood cells so that the tiredness doesn't last long, but overproduction of red blood cells may strain the system. I am a great fan of homoeopathy, but homoeopathic mercury should be avoided as a remedy against mercury poisoning as it seems to trigger a secondary immune response in some people. Similarly, try and avoid fruit and fruit juices. They are a little harsh on the system at this time, particularly oranges and grapefruit.
Dietary protein provides another detoxifying agent by binding with heavy metals.
Surprisingly, experience by Huggins has shown that vegetable protein is less effective in its ability to detoxify. The three dimensional forms of vegetable and animal protein molecules are slightly different, both doing similar, but not identical jobs. Huggins states that he has never been able to completely cure a vegetarian. Selenium is a very effective detoxifier of heavy metals and adequate levels must be maintained. A word here about vitamin B12.