I like the methylated form of the vitamins and a good composition of minerals. My dog ate the pill without problems. However, the Calcium Pantothenate contains calcium of approximately 900 mcg. Magnesium (as DiMagnesium Malate) is 500 mcg which is a 2:1 ratio. Usually this would be the right ratio but as my 16 yo dog is starting to get calcium deposits I want a 1:1 ratio. This formula may be fine for other dogs but it's no good for my dog. I wish I had spotted this earlier as she has nearly finished her second bottle. Eek! I am throwing the rest out