Selenium & Iodine are co-dependent. You can't take one without the other. I suggest the next time you take selenium, balance it out with a drop of Lugols in a glass of water. This may resolve the problem.

You might also try the natural sources of selenium, such as 3 Brazil Nuts a day, or a can of sardines a day. Since starting on iodine, I get my selenium from Brazil nuts, wife gets hers from sardines.

The recommended selenium is
- - 200 mcg selenium (L-selenomethionine preferred)

Grizz

Se could be movin' Mercury out, causing headaches.

Some recommend Chelation before supplementation.

The headache you get is propably just cleaning reaction, i dont think selenium chelate mercury, it just binds it and when mercury and selenium are together they make a new substance together...actually i believe that selenium and mercury are something like magnets....when they are in contact they try to " connect " to other and visa versa, and that has great advantage as when that happen it then cant go to brain tissue .


So even thought selenium cant directly chelate mercury it helps a lot when it binds it so it makes it less dangerus to human .


I think you just need to take something that is knows as heavy metal binder, like chorella, zeoforce, spirulina etc...when you have some binder stuff allready in your gut ready to catch toxic elements you might not notice headache at all....and drink a lot water also(clean water)


Well that was just my humple opinion, been doing some detox myself so i know how allmost all bad stuff end up in gut one way or another when taking anything that can help the body to do cleaning, if i remember right this...it`s about 90% of toxic substances that end up in your gut/intestines when doing detox,and a lot will just become sucked up all again if there is not something there to bind it .


So it`s a painfull recirculation .

Selenomethionine deposits in tissues, like the brain, in higher concentrations than other selenium forms. Although it can counteract mercury, lead, and cadmium, making it less toxic, it will stay stored in the brain. I'm no chelation expert, but it makes more sense to remove heavy metals from the body that do not belong there.

If I were you, I'd stop supplementation and resume intermittently. Sometimes, all it takes is a break.

I get headaches from selenomethionine and yeast-based selenium also.

However, I can take methyl-selenocysteine (SeMC, both Life Extension or Jarrow have versions of this) without any problem. This is the form found in cruciferous and allium vegetables that is anti-carcinogenic and does not accumulate in the body tissues.

The other forms of selenium are known to trigger necrosis of both healthy and cancerous cells, a toxicity reaction, whereas methylselenocysteine triggers apoptosis of cancerous cells and not in healthy cells.