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Thorne   Iron Bisglycinate - 60 Capsules

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33 Reviews

"No side effects. Great product"  Read all reviews

Item Number: TR1377
Serving Size: 1 Capsule Servings per Container: 60
Price per Serving:  $0.22 Price per Unit*: $0.22 per Capsule
* Price Per Unit may reflect product's price per capsule, tablet, ounce, fluid ounce, etc.
161 In Stock.

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Iron in a form for enhanced absorption without gastrointestinal side effects*

Iron Bisglycinate provides an optimal way to supplement iron‚ which is essential for red blood cell formation.* It helps fight fatigue and other symptoms of iron deficiency in athletes and others.* NSF Certified for Sport®

Thorne's Iron Bisgylcinate is NSF Certified for Sport®. It is essential for the formation of red blood cells.* The U.S. Centers for Disease Control has determined that the prevalence of iron deficiency is greatest among toddlers (7% of those ages 1-2 years) and menstruating adolescent and adult females (9-16 % of individuals ages 12-49‚ whether they are athletes or not. Conventional iron supplementation‚ including forms such as ferrous sulfate‚ can cause gastrointestinal side effects – including nausea‚ vomiting‚ constipation‚ diarrhea‚ and dark-colored stools – because these conventional forms of iron are poorly absorbed. Thorne's Iron Bisglycinate provides 25 mg of elemental iron per capsule that has been reacted with glycine for optimal absorption in the gastrointestinal tract‚ thus helping to decrease the typical gastrointestinal side effects.*

An iron deficiency can manifest as weakness‚ fatigue‚ shortness of breath on exertion‚ dizziness‚ tinnitus‚ spots before the eyes‚ drowsiness‚ irritability‚ infrequent menstruation‚ and loss of libido.* Athletes need approximately 1.5 times as much Iron as non-athletes. Those who follow a vegetarian or lower protein diets may have needs as high as 1.8 times as much dietary iron. Blood loss from injury and muscle damage‚ as well as GI bleeding associated with extreme endurance activities can further decrease the body's iron stores.

Low iron can lead to a reduction in the body's normal uptake of oxygen to cells. A reduction of oxygen to cells can lead to a reduction in work capacity and aerobic performance. Untreated chronic low levels of iron can lead to iron deficient anemia.

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.

These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose‚ treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.

  • MFG # M226
  • UPC # 693749003458
Official Website:

Serving Size: One Capsule
Servings Per Container: 60

One Capsule Contains: / %DV

Iron (as Ferrochel® Ferrous Bisglycinate Chelate)† 25 mg / 139%

Daily Value (DV)

Other Ingredients: Hypromellose (derived from cellulose) capsule‚ Microcrystalline Cellulose‚ Leucine‚ Silicon Dioxide.

†This product uses Albion's Ferrochel® Ferrous Bisglycinate chelate. Ferrochel is a registered trademark of Albion International‚ Inc.

Gluten Free.
NSF Certified Sport.

Take 1 capsule daily or as recommended by your health-care practitioner.

TAMPER EVIDENT: Use only if bottle is sealed. Store tightly sealed in a cool‚ dry place.

If pregnant‚ consult your health-care practitioner before using this product.

WARNING: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under six. Keep this product out of reach of children. In case of accidental overdose‚ call a doctor or a poison control center immediately.

  • Egg Free
  • Gluten Free
  • High Fructose Corn Syrup Free
  • Nut Free
  • Peanut Free

Ratings and Reviews

Write a Review
  • 4.8
5 33
  • 33 Reviews
    • Verified Buyer

      Good quality iron

      from RI on 6/08/2022
      This is one of the better quality iron supplements although it does still cause me a bit of digestive slow down
      review-checkI would recommend this item to a friend.
    • Easy to take

      from New Jersey on 11/02/2021
      This pill is easy to take with no harsh side effects.


      No harsh side effects


      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Great iron supplement

      from RI on 10/08/2021
      I find this a high quality iron supplement with The least side effects and a great price.
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      How's your hemoglobin?

      from N. Ft. Myers FL on 10/08/2021
      I have recently started taking iron due to lower than should be hemoglobin. I found that Iron Bisglycinate is the best form to take.


      I like knowing that I'm helping my body stay in balance.


      No dislikes.
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Best Iron for Absorbption

      from Beaverton OR on 6/16/2021
      This stuff is amazing - I have tried so many other iron products that made me constipated. These did not do that and I saw results in my bloodwork. Very great product!
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Excellent quality iron

      from RI on 5/10/2021
      I have been using this for over six months now and it is the best iron supplement I have ever used. No side effects at all, well tolerated and for the first time my ferritin levels are higher than they have been in a really long time. I will buy this again.
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Excellent quality iron

      from RI on 11/25/2020
      No side effects. Great product
    • Verified Buyer

      Good quality Iron

      from RI on 11/14/2020
      Good quality iron that doesn't cause side effects or gi upset
      review-checkI would recommend this item to a friend.
    • Absorbable iron

      from Eureka, CA on 10/01/2020
      Had low iron off & on when attempting to donate platelets at the blood bank; this supplement makes me able to donate more regularly.


      Very absorbable form of iron.


      Not available at all pharmacies; I had to resort to online ordering.
      review-checkI would recommend this item to a friend.
    • Verified Buyer


      from CHIPLEY FL on 6/28/2020
      Low level of iron but works ok. If you just need a maintenance amount but I'm not sure it enough to be therapeutic.


      Gentle and affordable.


      Low level of iron.
      review-checkI would recommend this item to a friend.
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Customer Questions and Answers

1-1 of 1

  • Question:
    I am allergic to corn and also have a gluten sensitivity. Does the Iron Bisglycinate supplement by Thorne contain any corn or gluten-derived ingredients? Thank you.
    Crystal Witte on 12/27/2015 Answer:
    • Thank you for reaching out to us, Crystal. This product does not contain any corn or gluten derived ingredients. 
      PureFormulas on 12/29/2015

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