I see that you are new to the forum....SO WELCOME, welcome! I put a small amount of my Calcium/vitamins into a little plastic container, glass jar, or ziplock. Then I add my food item (I feed crickets and roaches) to the container that has the supplement in it. Seal the bad boy and shake. Gently of course...unless my 2 year old is helping...she shakes it a little harder then needed As far as worms go, I would rinse dirt off of them and then give 'em a little dash of supplement.Hope this helps