Mine weigh 17.6 and 20.2 and I give them 1 tbln each of oil, emulsified in a ratio of 1:2 oil to cottage cheese. If it is too dry, I add a little yogurt, or water. I use a hand blender. You blend until all the oil is completely emulsified, and there is no oily residue on the container. This is also called the Budwig Protocol. It is an anti-cancer protocol. The scientist that came up with this was a German doctor. She studied this for over 50 years. I have been doing a lot of research on it myself, and have talked with many dog owners that give this to their dogs daily, as a preventative. The cottage cheese basically makes the oil water soluble, so your body absorbs it immediately upon ingestion, that way the oil does not go rancid first. Dr. Budwig, wrote an entire few books on this. (I have those too) Accoriding to her, flax seed oil is the best form of essential fatty acids, plus I don't have to worry about the mercury in fish oils.