A well-absorbed form of iron that reduces gastrointestinal side effects*An optimal delivery format for iron, which is essential for healthy red blood cells.* Resists fatigue and other effects of iron deficiency in women, athletes, and others.* NSF Certified for Sport®Iron is essential to the formation and function of healthy red blood cells.* An adequate amount of dietary iron is required for blood cells to efficiently transport oxygen throughout the body. According to the U.S. Centers for Disease Control (CDC), up to 16 percent of individuals in some populations is deficient in iron. Individuals who can be prone to iron deficiency include:Women of menstruating ageIndividuals who follow a vegan or vegetarian dietFrequent blood donorsIndividuals who have undergone gastric bypass surgeryIndividuals who eat a very high fiber diet, which can inhibit iron absorptionIndividuals recovering from blood loss, such as injury or surgeryPerformance athletes who have any of the above additional risk factors Signs of iron deficiency:Fatigue or weaknessShortness of breathPale skinCold hands and feetFeeling lightheaded or dizzyChanges in menstrual cyclesDecreased athletic performance Iron is difficult for the body to absorb, and supplementing with conventional forms of iron, including ferrous sulfate, can cause gastrointestinal side effects – such as nausea, vomiting, constipation, diarrhea, and dark-colored stools. Thorne's Iron Bisglycinate contains iron reacted with glycine to optimize its absorption in the gastrointestinal tract, thus minimizing the typical side effects of iron supplementation.* Features of Thorne’s Iron Bisglycinate:Iron provided in a chelated form for optimal absorptionReduced GI side effects, such as nausea and constipation*Provides 25 mg of elemental iron per serving as Ferrochel® chelateNSF Certified for Sport® Because an athlete needs to know that his or her supplements are trustworthy and compliant, every batch of an NSF Certified for Sport® product is tested for compliance with label claims and to ensure the absence of more than 200 substances banned by many major athletic organizations, including stimulants, narcotics, steroids, diuretics, beta-2 agonists, and masking agents.Thorne's logo, text, trademarks, graphics, videos and photo images are the property of Thorne and are used with permission. Copyright © 2023*FDA Disclaimer: The information about this product and statements made are provided by the manufacturer, except customer reviews which are not evaluated. See www.thorne.com for information about the relationship between this product and any claims made. Results may vary from person to person based on body size and other factors, and the effectiveness is not guaranteed for you. Always seek the advice of your healthcare professional about taking dietary, nutritional, herbal or homeopathic supplements.