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.
Iron-rich foods include: 1  dark-green leafy vegetables, such as watercress and curly kale. 2  iron-fortified cereals or bread. 3  brown rice. 4  pulses and beans. 5  nuts and seeds. 6  white and red meat. 7  fish. 8  tofu. 9  eggs. 10  dried fruit, such as dried apricots, prunes and raisins.