Corpus luteum - Development and structure. 1  The corpus luteum develops from an ovarian follicle during the luteal phase of the menstrual cycle or oestrous cycle, following the release of a secondary oocyte from the follicle during ovulation.
Iron found in foods is either in the form of heme or non-heme iron. Heme iron is better absorbed than non-heme iron. Foods containing heme iron are the best for increasing or maintaining healthy iron levels. Such foods include (in order of iron-richness) clams, oysters, organ meats, beef, pork, poultry, and fish.
In a more general sense, the following is a highest-to-lowest list of foods that typically have a high amount of heme iron: 1  Beef & chicken liver. 2  Oysters, clams, mollusks, & mussels. 3  Beef. 4  Canned sardines. 5  Turkey. 6  Chicken. 7  Fish (halibut, haddock, salmon, tuna) 8  Ham. 9  Veal.