Flaxseed oil does not contain anything that is specifically good for heavy metals.

I'd suggest animal-based omega 3, given that heavy metal poisoning means increased oxidative stress, and that means that the more fragile vegetal omega 3 won't survive long and you might have a deficiency of essential fatty acids in general.

I also have/had mercury and lead intoxication. I got rid of Amalgams in Jan of this year. I have candida also because they are linked (metals and candida). I did chelation therapy, but have also read that cilantro and chlorella is also a good protocol. See Dr. Klinghardt as I think he is an expert. You can google for his information and site.

Even though mercury dropped from 15 to 2 in 6 months based on a test by Dr. Data, I believe that it is in my brain and brain stem tissue as I have scalp odor that I cannot get rid of and smells lethal.

I hear olive leaf extract is very powerful as well as extra virgin coconut oil, not to mention a yeast free diet.

Good luck with your health
R