All homemade diets must be supplemented with calcium. The amount found in multivitamin and mineral supplements is not enough. Give 800 to 1,000 mg calcium per pound of food (excluding non-starchy vegetables). You can use any form of plain calcium, including eggshells ground to powder in a clean coffee grinder (1/2 teaspoon eggshell powder provides about 1,000 mg calcium). Animal Essentials’ Seaweed Calcium provides additional minerals, as well. And here is a good list of calcium-rich foods your dog may like.
Oils: Most homemade diets require added oils for fat, calories, and to supply particular nutrients. It’s important to use the right types of oils, as each supplies different nutrients.
Fish Oil: Provides EPA and DHA, omega-3 fatty acids that help to regulate the immune system and reduce inflammation. Give an amount that provides about 300 mg EPA and DHA combined per 20 to 30 pounds of body weight on days you don’t feed fish. Note that liquid fish oil supplements often tell you to give much more than this, which can result in too many calories from fat.
Cod Liver Oil: Provides vitamins A and D as well as EPA and DHA. If you don’t feed much fish, give cod liver oil in an amount that provides about 400 IUs vitamin D daily for a 100-pound dog (proportionately less for smaller dogs). Can be combined with other fish oil to increase the amount of EPA and DHA if desired.
