Psychological
Autism: Oxytocin has been implicated in the etiology of autism, with one report suggesting autism is correlated to a mutation on the oxytocin receptor gene (OXTR). Studies involving Caucasian, Finnish and Chinese Han families provide support for the relationship of OXTR with autism. Autism may also be associated with an aberrant methylation of OXTR. Protection of brain functions: Studies in rats have demonstrated that nasal application of oxytocin can alleviate impaired learning capabilities caused by restrained stress. The authors attributed this effect to an improved hippocampal response in Brain-Derived Neurotrophic Factor (BDNF) being observed. Accordingly, oxytocin has been shown to promote neural growth in the hippocampus in rats even during swim stress or glucocorticoid administration. In a mouse model of early onset of Alzheimers, the administration of oxytocin by a gel particularly designed to make the peptide accessible for the brain, the cognitive decline and hippocampal atrophy of these mice were delayed. Moreover, the amyloid β-protein deposit and nerve cell apoptosis were retarded. An observed inhibitory impact by oxytocin on the inflammatory activity of the microglia was proposed to be an important factor. Bonding
In the prairie vole, oxytocin released into the brain of the female during sexual activity is important for forming a pair bond with her sexual partner. Vasopressin appears to have a similar effect in males. Oxytocin has a role in social behaviors in many species, so it likely also does in humans.
Because iron from plant sources is less easily absorbed than the heme-bound iron of animal sources, vegetarians and vegans should have a somewhat higher total daily iron intake than those who eat meat, fish or poultry. Legumes and dark-green leafy vegetables like broccoli, kale and Asian greens are especially good sources of iron for vegetarians and vegans. However, spinach and Swiss chard contain oxalates which bind iron, making it almost entirely unavailable for absorption. Iron from non-heme sources is more readily absorbed if consumed with foods that contain either heme-bound iron or vitamin C. This is due to a hypothesised "meat factor" which enhances iron absorption.Following are two tables showing the richest foods in heme and non-heme iron. In both tables, food serving sizes may differ from the usual 100g quantity for relevancy reasons. Arbitrarily, the guideline is set at 18 mg, which is the USDA Recommended Dietary Allowance for women aged between 19 and 50. Food recommendations for children
Children at 6 months should start having solid food that contains enough iron, which could be found in both heme and non-heme ironHeme iron:

Red meat (for example, beef, pork, lamb, goat, or venison)
Fatty fish
Poultry (for example, chicken or turkey)
EggsNon-heme iron:

Iron-fortified infant cereals
Tofu
Beans and lentils
Dark green leafy vegetablesIron deficiency can have serious health consequences that diet may not be able to quickly correct; hence, an iron supplement is often necessary if the iron deficiency has become symptomatic. Blood transfusion
Blood transfusion is sometimes used to treat iron deficiency with hemodynamic instability.