To make sure I give you the correct reply, I have written to the owner of Utopia Silver, Ben Taylor. I will post his reply as soon as I receive it.
In the meantime, I just want to let you know that you cannot overdose on colloidal silver, so don't worry about that. Even if you consumed 50 times the recommended amount, it would not be wasted, as it would accumulate in the body's tissues in order to provide further benefits in the future.