Besides iron, the body needs the vitamins B12 and folic acid to make RBCs. You get these vitamins in the foods you take in. Vitamin B12 is situated in animal products, therefore vegetarians who don’t eat meat, eggs, or dairy products have to search for other ways to get more than enough of this important supplement. Folic acid is found in a variety of foods, such as citrus fruits, vegetables, and fortified cereals. Anemia can form if the bone marrow isn’t working properly also. This may be due to contamination or a chronic disease, such as for example arthritis or kidney disease. In rare cases, someone may be born without the ability to make enough crimson blood cells. Certain medicines like chemotherapy for cancers will keep the bone marrow from being able to make enough RBCs.The primary analysis was performed after all patients receiving the active regimen through the double-blind period reached post-treatment week 12 and all patients receiving placebo reached week 12 of open-label treatment. Data relating to the principal analysis are reported. SAS software, version 9.3, for the UNIX operating-system was used for all analyses. All statistical tests and 95 percent self-confidence intervals were two-sided with a significance level of 0.05. For analysis of efficacy, regular approximation to binomial distribution was used to calculate 95 percent confidence intervals.