Linda, i have heard that Sun chlorella is the best and you can now purchase it here in the uk. I wouldnt go for a cheap one cos they can contain mercury, sun chlorella is different.
I too came to this forum while getting my fillings replaced, i realised i had chose the wrong dentist, not enough protection,(only a dam) and dental materials dangerous containing fluoride, aluminium, and something that elevates estrogen levels which i have had probs with ever since replacement.
Be careful of what the dentist puts in your mouth, white fillings can also be dangerous.
If i could go back in time ii would have done things diferently and done alot more research.