I buy most of my stuff in bulk. I feed three greys, 1 whippet and two cats snack on their favorite items. I stocked up 5 weeks ago and paid 180.00. I still have 15 pounds of chicken backs left. However, I buy somethings every 8 months, purchase from the grocery store and receive things, like venison, from friends during hunting season, so it is kind of hard to check. However, I would think 25 -50 per month per dog works. I have been feeding that diet for 3 years and have only had one dental done during that time. That dental was a year ago and his teeth still look good. I do brush their teeth and use the Pet Gel (exact name forgotten) as well. As for supplements, I add fish oil capsules and SynoviG3 to their daily diet (3 are 8 YO and over), b-complex vitamin a couple times a week and vitamin 3 for the whippet because his urine pH is off and that placates my vet. I do add kelp when I have it, too.