Zinc Test - Where to Buy Zinc Sulfate?

I am wanting to do a Zinc test where you mix Zinc sulfate powder in water and then swish it around in your mouth. According to the test if you have a metallic taste in your mouth you are not deficient and if you do not have any taste in your mouth then you are deficient.

Anyways does anyone know where I can get some Zinc Sulfate Powder? Surely this stuff can not cost that much.

You can buy it from Charles Poliquin,

If it tastes like water you are deficent.

If it tastes real bad you are ok.

Yea i’ve been looking for this stuff too where I don’t have to ship it to myself and I’ve found nothing.

Yeah I saw his product. It seems high to pay that much for it. I found some zinc sulfate monohydrate in powder form for cheap but wonder if its fit for human consumption?