Loot I use them as well. Just to clarify, this took me quite a while on the phone with them. Started on chat then a phone call. The difference in MGs as relates to the Meds Bio Tech is just in the volume of the package. 500mg will have approx 5 times as many bears in the bottle 1000 mg would have 10x etc. The dosage per bear is fairly consistent but they would not confirm exactly what that is. It was very frustrating trying to get this information but I love the product. Wish I could get more details though to compare all if t he various gummy products.