Skip to content

Iron · 120 capsules

Original price €12,90 - Original price €12,90
Original price €12,90
€12,90 - €12,90
Current price €12,90
Benachrichtige mich, wenn vorrätig
  • PayPal
  • Amazon
  • Visa
  • Mastercard
  • American Express
  • Klarna

Iron is a vital mineral that is of immense importance for an optimal oxygen supply in the body, among other things (1). Iron also plays a role in energy metabolism, cognitive functions, the immune system, cell division and, above all, the formation of red blood cells. GN Laboratories provides you with the mineral in an optimally absorbable form - because in the end, only results count.

  • Numerous effects
  • Effect proven by numerous studies
  • With vitamin C for better absorption
  • 100 % vegan
  • Easy to dose capsule form
  • Highest quality - made in Germany
Nährwerte und Inhaltsstoffe
Compositionper capsule% (NRV*)
Iron14 mg100 %
Vitamin C40 mg50 %

Zutaten: Iron bisglycinate, bulking agent: microcrystalline cellulose, coating agent: hydroxypropyl methylcellulose (vegetable capsule shell), L-ascorbic acid, rice flour.

*Prozent der empfohlenen täglichen Verzehrmenge laut Verordnung (EU) Nr. 1196/2011

**Keine Nährstoffbezugswerte (NRV) vorhanden.


Take 1 capsule daily unchewed with plenty of water.


Die angegebene empfohlene tägliche Verzehrsmenge darf nicht überschritten werden. Nahrungsergänzungsmittel sollten nicht als Ersatz für eine ausgewogene und abwechslungsreiche Ernährung verwendet werden. Das Produkt ist außerhalb der Reichweite von kleinen Kindern zu lagern.

  1. Abbaspour N, Hurrell R, Kelishadi R. Review on iron and its importance for human health. J Res Med Sci. 2014;19(2):164-174.
  2. Milman N. Iron and pregnancy-a delicate balance. Ann Hematol. 2006;85(9):559-565. doi: 10.1007/s00277-006-0155-y
  3. Andrews NC. Forging a field: the golden age of iron biology. Blood. 2008;112(2):219-230. doi: 10.1182/blood-2007-12-077388
  4. Abbaspour N, Hurrell R, Kelishadi R. Review on iron and its importance for human health. J Res Med Sci. 2014;19(2):164-174.
  5. Wessling-Resnick M. Iron Homeostasis and the Inflammatory Response. Annu Rev Nutr. 2019;39:79-98. doi: 10.1146/annurev-nutr-082018-124444
  6. Nielsen P, Nachtigall D. Iron supplementation in athletes. Current Sports Medicine Reports. 2003;2(4): 195-199. doi: 10.1249/00149619-200308000-00006
  7. Hurrell R, Egli I. Iron bioavailability and dietary reference values. Am J Clin Nutr. 2010;91(5):1461S-1467S. doi: 10.3945/ajcn.2010.28674G
  8. Crichton RR, Dexter DT, Ward RJ. Brain iron metabolism and its perturbation in neurological diseases. J Neural Transm. 2011;118(3):301-314. doi: 10.1007/s00702-010-0476-3
  9. Patterson, A. J., et al. (2015). Iron deficiency, general health and fatigue: Results from the Australian Longitudinal Study on Women's Health. Quality of Life Research, 24(3), 575-582. doi: 10.1007/s11136-014-0801-6.
  10. (10) Meusel K, et al. (2019). Iron deficiency and iron deficiency anemia among a middle-aged and elderly population in Germany: Prevalence, risk factors and comorbidity. Results of the ESTHER Study.
  11. (11) Sim M, et al. (2018). Iron supplementation improves endurance after training in iron-depleted, nonanemic women. Journal of applied physiology (Bethesda, Md. : 1985), 124(2), 447-456.
  12. (12) Markova M, et al. (2016). Iron status in recreational and elite female athletes, women with heavy menstrual bleeding and control group. Physiological research, 65(Suppl 2), S261-S269.
  13. (13) Goddard AF, et al. (2011). Diagnosis and management of iron deficiency anaemia in adults: A clinical guideline. Scottish Intercollegiate Guidelines Network.
  14. (14) Kroot J, et al. (2012). Guidelines for the diagnosis and treatment of acquired aplastic anemia. Dutch Working Party on Aplastic Anemia. Haematologica, 97(6), 759-766.
  15. (15) Sim M, Garvican-Lewis LA, Cox GR, Govus AD, McKay AK, Stellingwerff T, et al. Iron considerations for the athlete: a narrative review. Eur J Appl Physiol. 2019;119(7):1463-1478.
  16. (16) Schumacher YO, Schmid A, Grathwohl D, Bültermann D, Berg A. Hematological indices and iron status in athletes of various sports and performances. Med Sci Sports Exerc. 2002;34(5):869-875.
  17. (17) Peeling P, Dawson B, Goodman C, Landers G, Trinder D. Athletic induced iron deficiency: new insights into the role of inflammation, cytokines and hormones. Eur J Appl Physiol. 2008;103(4):381-391.
  18. (18) Hallberg L, Rossander-Hultén L, Brune M, Gleerup A. Calcium and iron absorption: mechanism of action and nutritional importance. Eur J Clin Nutr. 1992;46(5):317-327.
  19. (19) Milman N, Taylor CL, Merkel J, Brannon PM. Iron status in pregnant women and women of reproductive age in the United States: National Health and Nutrition Examination Survey, 1999-2006. am J Clin Nutr. 2018;107(3):416-424
  20. (20) Hurrell RF. Phytic acid degradation as a means of improving iron absorption. Int J Vitam Nutr Res. 2004;74(6):445-452.
  21. (21) Hurrell, R. & Egli, I. (2010). Iron bioavailability and dietary reference values. The American Journal of Clinical Nutrition, 91(5), 1461S-1467S.
  22. (22) Gravel, C. (1994). Iron supplementation: A review of our current understanding. Journal of the American Dietetic Association, 94(7), 762-771.
  23. (23) Schümann, K. & Solomons, N. W. (1997). Perspective: Iron supplements - science, commerce and quality of efficacy measures. European Journal of Clinical Nutrition, 51(8), 491-494.
  24. (24) Lynch, S. R. & Cook, J. D. (1980). Interaction of vitamin C and iron. Annals of the New York Academy of Sciences, 355(1), 32-44.
  25. (25) Brune, M., Rossander, L., & Hallberg, L. (1989). Iron absorption and phenolic compounds: Importance of different phenolic structures. European Journal of Clinical Nutrition, 43(8), 547-557.

Inhalt: 120 capsules Artikelnr.: 7030

What does the body need iron for?

Iron is an essential trace element that the body cannot produce itself. For this reason, iron must be supplied through food or in the form of supplements. Iron fulfills a whole range of vital tasks in the human body. Iron is an important component of haemoglobin, which is responsible for transporting oxygen from the lungs to the different types of tissue in the body (2). It is also responsible for the removal of carbon dioxide from the body's cells. Without sufficient amounts of iron, blood formation and consequently the body's oxygen supply is impaired (3). Furthermore, iron is a component of a large number of different enzymes that play an important role in the immune system in fighting infections and pathogens (4). Iron therefore contributes to the normal functioning of the immune system. For athletes, it should be of great interest that studies have shown that iron is needed to store oxygen in the muscles. There, iron contributes to normal energy metabolism. This plays a crucial role in muscle contractions during training (5). But this is not the only role that iron plays in energy metabolism in the body. Iron is also required for the transfer of electrons as part of energy metabol ism, which is a fundamental physical process without which the entire energy metabolism would not function. This conclusion has been reached by numerous studies carried out independently of each other (6,7,8). Iron also contributes to a reduction in tiredness and fatigue and to normal cognitive function.

What are the potential consequences of too little iron?

National studies have found that iron deficiency is not uncommon among those studied in Germany (10). Iron requirements naturally vary between individuals and studies have shown that they can be influenced by a variety of factors. These factors include things like blood loss (menstruation in women, blood donation, injuries), gastrointestinal diseases that reduce iron absorption, an increased need during pregnancy and increased iron loss in intensively training athletes. Researchers came to these conclusions when looking at the blood values of test subjects in various studies (11,12). Initial symptoms of iron deficiency observed in test subjects include chronic fatigue, weakness, reduced athletic performance, headaches, forgetfulness, gastrointestinal complaints, hair loss, dull hair, brittle nails, dizziness, pale skin and mucous membranes and increased susceptibility to infections due to impaired immune system function (13). In the case of advanced iron deficiency, anaemia and disturbances in the regulation of body temperature were observed in the people examined (14).

Which groups of people showed an increased iron requirement in studies?

In various studies,intensively training athletes showed a significantly increased iron requirement due to iron loss through sweat and other factors (15). The resulting iron deficiency is also known colloquially as "athlete's anemia", but should not be confused with true anemia. According to studies, 85% of all endurance athletes have hemoglobin and hematocrit levels, which are a marker for iron status, only in the lower normal range (16,17). Another group that has shown an increased iron requirement in scientific studies are premenopausal women (18). Due to the loss of blood during menstruation, the female body loses iron, which must be replenished externally. Pregnant women also showed a significantly higher iron requirement in studies compared to non-pregnant women (19). The last group that researchers found to have a particularly high need for iron were vegans and vegetarians. According to studies, the iron contained in plant-based foods is so-called non-heme iron. If the results of some studies are to be believed, this is absorbed by the body 4 to 5 times less effectively than the heme iron contained in meat. In addition, plant sources of iron often contain phytates and other compounds that can inhibit iron absorption (20).

Iron absorption in the body

Many foods contain ingredients that form poorly soluble compounds with iron or block iron absorption for other reasons. According to studies, these include phytates, polyphenols, phosphates and oxalic acid found in many plant-based foods such as spinach, soybeans and cocoa. But also the calcium contained in dairy products and the tannins contained in tea and coffee. Certain dietary fibers such as bran can also inhibit iron absorption (21). For this reason, iron has been taken as a supplement for a long time in order to effectively bypass the blocking effect of various foods (22). However, how well the iron can be absorbed by the body depends on the form of the active ingredient used. GN Laboratories only uses iron bisglycinate, which is particularly bioavailable (23). Iron also contains vitamin C. The vitamin was able to significantly improve the absorption of iron in the body in the subjects of some studies (24). Another aspect that can be beneficial for the absorption of iron is taking the supplement on an empty stomach (25).

Iron is an extremely important mineral that significantly influences a whole range of functions in the human body. As usual, GN Laboratories supplies the active ingredient in the best quality so that it can be optimally absorbed by the body. Iron from GN Laboratories - because in the end only results count.

Customer Reviews

Based on 7 reviews
Werner Simmer
Eisen nicht nur im Gym

Spinat war gestern heute sind es das hier..... das geht nach vorne ich bin happy damit

Benita N.
Eisenmangel ist oft real

Eisen ist tatsächlich etwas von dem oft ein Mangel herrscht macht also durchaus sinn das als Supplement einzunehmen

E. Maier

Man wird zwar nicht zu Ironman nachdem man das nimmt aber es ist trotzdem top

F. Lummer

Eisen nehmen um Eisen zu heben simpel oder ?

Kasper O.
Wichtig und richtig

Eisen ist ein unfassbar wichtiger Mikronährstoff, schaut euch Studien dazu an und wie viele Leute nicht genug davon zu sich nehmen.