I canna mind where I first heard about the origin of the phrase; "Born with a silver spoon in their mouth"? In days of yore, the rich / Royalty ate from silver dishes with silver cutlery- and they avoided all the bugs 'the commoners' died of... so colloidal silver makes sense to me, in that respect?
Last winter, when I saw Dr Mercola's presentation on Vit D, and his advocating of 'mega-doses' to fight a flu when you got one, rather than just routinely taking some, I dowsed myself frequently to see if I needed to take any, and how many I needed?
I awoke with a sore throat one night - dowsed, and it 'said' I had to take something like 11,000 iu, some Vit C with Zinc, & Echinacea, and dowsing reckoned I had to take more in the morning - it went away
I never got a cold, flu or any bug all winter.
Personally, I trust dowsing for resonance / compatibility - don't know how 'scientific' it is, but I mind the Kinesiologist 'dowsed' by muscle-testing to see how much of what 'remedy' I was to take and how often?
I got colloidal silver recently, and am rarely 'advised' I need any, through dowsing.
Getting as much Vitamins & minerals through a healthy, balanced diet and avoiding refined white sugar and processed foods is the best way...
{says she... "One should look at one's self before one talks of others"; I was rebuked by a Teacher once... So I'm off to buy more organic fruit & veg' tomorrow