One would build up the dosage over time. Don't even think about chelating while pregnant though. While many need to start chelating with 25mg or less, they build up the dosage over time.
Those who have strong reactions to chelators might need to get rid of parasites and decrease candida first before chelating.


At one time I had such bad reactions to just 25 mg of ALA. Over time though I built up the ALA dosage to 200 mg.