I got my zinc test and used it. I am a little unsure about the result. You sit it on your tongue for 10 seconds. Dosen't say whether to swallow it or not.

I didn't tast anything while it was on my tongue and I immediately had strange tastes around the back and sides of my tongue, after swallowing, but still nothing on the main area of my tongue.

If it says you taste something immediately, do they mean as soon as it's put on your tongue or after the 10 seconds and you have swallowed it?