“Yes, the dosage of Omega-3s is calculated on the weight of the dog. If you are using a product formulated for pets, simply follow the directions on the package. If you are substituting a human product, avoid cod liver oil due to excessive levels of Vitamins A and D. The average recommended dose of Omega-3 fatty acids (EPA + DHA) for a dog is about 20 – 30 mg/kg. There are 2.2 lbs. in a kg. For example, a 35-lb. dog weighs about 16 kg (35/16), and should get between 320 – 480 mg of Omega-3s per day. This doesn’t have to be precise. Giving a little extra is fine; and higher doses are often recommended for various health conditions. Your veterinarian can advise you more specifically. If you suspect your dog is developing a sore or hot spot, please have your veterinarian take a look.”