Even if you eat a very balanced diet you probably aren't getting enough.
I have no connection to these guys other than using their product


[url]www.marineminerals.com/[/url]

Excerpt:
What Is so Great About Ionic Minerals?  
You might first ask, "What are Ionic Minerals?". Ionic/Electrolyte Minerals are substances capable of conducting electricity. Electrolytes play an essential role in cell functions and fluid balance. An ion is a particle that carries an electrical charge: There are two types of ions: positively charged ions called cations and negatively charged ions called anions. Examples of important cations include, magnesium, potassium, calcium, and hydrogen. Some important anions are bicarbonate, chloride, and phosphate. Why are Ionic minerals better than colloidal? Colloidal are not capable of conducting electricity; colloids do not dissolve into true solutions and cannot pass through the call wall. Where Ionic minerals are capable of carrying both positive and negative electric charges, will dissolve into true solution, and is twenty-six times smaller than a colloid so it can immediatly pass through the cell wall.


Our Philosophy. To give the body the tools and nutrients it needs to nourish and cleanse itself. Whatever your health condition, or even if you are in the best of health, we believe minerals, herbs, vitamins and enzymes are vital. Our files are full of testimonials that attest to the extraordinary rejuvenating power our products have for all kinds of needs and in generating natural well-being.