One study in the journal Nutrition, Metabolism & Cardiovascular Diseases found that eating five servings of cod per week as part of a low-calorie diet for eight weeks resulted in an extra 3.8 pounds of weight loss compared to a diet with the same amount of calories but no fish.
The letters DC mean that this doctor is a doctor of chiropractic, or chiropractor. These letters differentiate him/her from a doctor of medicine (MD) or doctor of dentistry â¦(DDS) or doctor of osteopathy (DO), or doctor of podiatry (DPM), or doctor of phiosophy (PhD), etc.
According to the General Chiropractic Council (GCC), chiropractic is  a health profession concerned with the diagnosis, treatment and prevention of mechanical disorders of the musculoskeletal system, and the effects of these disorders on the function of the nervous system and general health  .