Diet - Dogs
Dogs and cats fed on tinned food may not be hungry but could well be deficient in vitamins and minerals. We can help them nutritionally by giving them bone-meal for calcium , kelp and alfalfa for beneficial minerals, dolomite for nerves and fretfulness, brewer's yeast for vitamin b and trace elements, and dried liver tablets. Cod-liver oil two to three times a week will give the coat a shining gleam and provide vitamins A and D, but do not give more than 2 or 3 drops each time.
Good health is very much a matter of good nutrition for animals, as it is for humans.
Reference: Fragrant pharmacy / V.A.WORWOOD