Dietary iron, intake

Van Cauwenbbrgh, Hendrix P, Robberecht H, Deelstra H (1997) Daily dietary iron intake in Belgium using duplicate portion sampling. Z Lebensm Unters Forsch 205A 4oi-4o6. 

Sufficient dietary iron intake must be maintained in patients with anemia of CKD. Approximately 1 to 2 mg of iron is... 

Hammad TA, Sexton M, Langenberg P. 1996. Relationship between blood lead and dietary iron intake in preschool children. A cross-section study. Ann Epidemiol 6(1) 30-33. 

In animal models of atherosclerosis, vascular iron deposit is closely related to the progression of atherosclerosis and LDL oxidation, and restriction in dietary iron intake leads to significant inhibition of lesion formation (8), DFO forms a stable complex with ferric iron and decreases its availability for the production of reactive-oxygen species (28). Moreover, in high concentration (>0.5 mmol/L), DFO may also scavenge... 

TABLE 99—11. Questions to Assess Adequacy of Dietary Iron Intake... 

A. Role of Iron Iron is the essential metaDic component of heme, the molecule responsible for the bulk of oxygen transport in the blood. Although most of the iron in the body is present in hemoglobin, an important fraction is bound to transferrin, a transport protein, and to ferritin, a storage protein. Deficiency of iron occurs most often in women because of menstmal blood loss and in vegetarians or malnourished individuals because of inadequate dietary iron intake. Children and pregnant women have increased requirements for iron. 

Absorption of plutonium from the gastrointestinal tract was minimal and was dependent on age, chemical properties, stomach content, dietary iron intake, and nutritional factors (Bomford and Harrison 1986 Harrison et al. 1986 Stather et al. 1980 Sullivan and Ruemmler 1988 Sullivan et al. 1983 Weeks et al. 1956). Oxidation state, administration media, extent of polymer formation, rate of hydrolysis, and mass administered did not appear to effect the absorption of plutonium (Carritt et al. 1947 Harrison and David 1987 Larsen et al. 1981 Stather et al. 1980, 1981). 

Homeostatic mechanisms are very important for the prevention of accumulation of excess Fe that is believed to generate oxidative stress by catalysis of variety of chemical reactions involving free radicals, which could result in cell damage (Pietrangelo, 2002 Puntarulo, 2005). Excess Fe accumulation may promote cancer and increase the cardiovascular risk (Martmez-Navarrete et ah, 2002). Iron overload can be observed in some cases including an excessive dietary iron intake, inherited diseases, for example, idiopathic hemochromatosis, congenital atransferrinemia, or the medical treatment of thalassemia (Fontecave and Pierre, 1993). 

Domellof, M. Thorsdottir, I. Thorstensen, K., Health effects of different dietary iron intakes A systematic literature review for the 5th Nordic Nutrition Recommendations. Food arulNutrition Research (2013) 57. 

In intestinal mucosa of fed adult rats, cytochrome P-450 content and activity of benzpyren hydroxylase and p-nitroanisole 0-demethylase were highest in the upper small intestine and progressively decreased toward the terminal ileum (Hoensch etal. 1975). Among the mucosal cell populations, mature villous tip cells contained 6 to 10 times more cytochrome P-450 and drug-metabolising activity per mg nucrosomal protein than epithelial crypt cells. On restriction of dietary iron intake for 48 h, cytochrome P-450 content and drug metabolising activity of villous tip cells decreased to 42 % and 13 % of control values, but were restored within 24 h by oral iron supplementation. 

Appropriate measures should be taken to insure that infants have a daily dietary iron intake of 6 mg from birth to 6 months of age, and of 10 mg from 6 to 12 months of age. (Also see ANEMIA and IRON.)... 

Fig. M-40 shows that meat-poultry-fish combined provide 22.1% of the dietary iron intake in the United States.

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