I purchase Ol'Roy Daily Smart Bites for my Tweenie Dachshund. The Smart Bites instruct to give one "cookie" per 20 pounds of body weight daily. My Dachshund is 12.5 pounds so I cut one in half and give him half a "cookie" daily. They are a little tough to break in half by hand so I usually cut them all in half with a knife after puchasing a package. They are soft "cookies" so this is not too difficult.
These Bites are to help maintain the health of your dogs coat and skin. I noticed that after giving my dachshund one half of a "cookie" daily for a week his coat was much smoother and had more shine to it. His fur became very soft to the touch as well. The small dry skin patches on his underbelly also cleared up within these few days.