Once a standard supplement in traditional European societies, cod liver oil provides fat-soluble vitamins A and D, which Dr. Price found present in the diet of "primitives" in amounts ten times higher than the typical American diet of his day. Cod liver oil supplements are a must for women and their male partners, to be taken for several months before conception, and for women during pregnancy. Growing children will also benefit greatly from a small daily dose.
Dr. Price always gave cod liver oil with butter oil, extracted by centrifuge from good quality spring or fall butter. He found that cod liver oil on its own was relatively ineffective but combined with butter oil produced excellent results. Your diet should include both good quality, organic butter and cod liver oil.
Please start your exploration of cod liver oil with our article Cod Liver Oil Basics and Recommendations, which includes brand recommendations and dosage estimates.