I know you can buy glucose powder in the pharmacies in Europe. I have a friend in Austria who was able to get a small bottle of it (which is plenty as you only need 40mg of it per liter to reduce 20PPM Ionic Silver to colloidal silver). It was much more expensive than in the US (here its about $2.25/pound - 454g but thats a 100 lifetime supply - wink).
40mg is impossible to measure. Take a 1/8teaspoon measuring spoon and fill it to about 1/4 of the height with glucose powder and you're around 100-150mg which is plenty - the extra will just make the Ionic Silver reduce faster but it won't hurt anything.
Health dose? NEVER! This is NOT a health supplement! They sell it as such in health food stores in the US (maybe abroad?) because thats the only way they can get it past the "powers that be that regulate health supplements and drugs". It is equivalent to a very powerful antibiotic. When you're sick, start taking it at several ounces to even 8oz twice a day for up to 10 days and if you're not better by then or if you keep getting sicker, SEE A DOCTOR! If, however, your health improves and you get better, just like with an antibiotic your doctor would prescribe, stop taking it till your sick again. Your doctor would NOT put you on a daily dose of antibiotics forever, would he? NO! Same here. This is "medicine", not a health supplement. Please don't get that wrong.