I've read that it is recommended to give Omega-3 to elderly dogs (especially ones with arthritis) (for example, here).
My dog is a 15 years old female medium sized, mixed breed (probably mostly German Shepherd), weighing approximately 25 kg (55 lbs).
My questions are:
- What amount of Omega-3 should I give her?
- Does the source of the Omega-3 matter (e.g. fish oil)?