<prompt> The nutritive value of diet is greatly enhanced by inclusion of fish in diet. Which of the following nutrient is deficient in fish?IodineVitamin AIronPhosphorus  <response>: Fish is nutritious food rich in proteins 15-25. The fat of fish is rich in unsaturated fatty acids and A and D vitamins. Fish bones are rich in calcium, phosphorus and fluorides. Fish are less rich in iron 0.7-3 mg100 g than meat. Freshwater fish do not contain iodine, but sea fish do. There is practically no carbohydrate in fish. Ref: Parks Textbook of Preventive and Social medicine, 19th edition, Page 500. 