Slow release iron compare to cative ingredients in slow fe gental to your system high potency , one per day , 60% fewer incidence of gi side effects compared to immediate release iron tablets. Legal Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose,treat,cure or prevent ant disease. This product has been manufactured and packaged in strict conformance with industry & government standards. Mason Natural®is a registered trademark and does not refer to any product claim.