Updated On October 14th, 2017
Pet's info: Dog | Mixed Breed Large (61lb +) | Male
Answered By Jenna Beyer, DVM, MBA, cVMA 181
Veterinarian, Certified Veterinary Acupuncturist
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There are no published studies to give doses of either of these supplements. However, 40-100mg/kg of body weight is commonly recommended for fish oils (combined DHA and EPA). So for your dogs, that would be 1500-3600mg EPA+DHA per day. The biggest side effect of fish oils is greasy or loose stools. It may also cause pancreatitis in dogs that are sensitive to excess fat. You can try 3-5mg of melatonin once per day. I would do it at night since it may make them sleeping. You will need to check the list of ingredients in the supplement you choose to make sure it does not contain xylitol.
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