Manufacturer | Thorne Research |
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Manufacturer reference | ZM226 |
Product Dimensions | 5.31 x 5.31 x 9.45 cm; 0.02 g |
ASIN | B07B6GN9PR |
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Thorne Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects - 60 Capsules - 60 Servings
Purchase options and add-ons
Brand | THORNE |
Item form | Capsule |
Primary supplement type | Iron |
Unit count | 60.0 count |
Flavour | Unflavored |
Product benefits | Nutritional Support |
Number of Items | 1 |
Item weight | 25 Milligrams |
Age range (description) | Adult |
Manufacturer | Thorne Research |
About this item
- Well-Absorbed Iron: Provides 25 mg of elemental iron per capsule in a non-constipating, well-absorbed form as iron bisglycinate
- Fight Fatigue: Helps fight fatigue and other signs of an iron deficiency, which can manifest as weakness, shortness of breath, dizziness, tinnitus, drowsiness, irritability, infrequent menstruation, and loss of libido
- Blood Support: An essential mineral for the formation of new red blood cells
- Certified For Sport: Supports high-performance nutrition programs and is NSF Certified for Sport
- NPN 80043826
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Important information
Safety Information
Risk Information: Keep out of reach of children. There is enough drug (iron) in this package to seriously harm a child. Do not use if security seal inside the cap is broken. Store tightly sealed in a cool, dry place.
Indications
Sports Performance
Ingredients
One Capsule Contains: Iron (as Ferrochel® Ferrous Bisglycinate )† 25 mg. Other Ingredients: Hypromellose (derived from cellulose) capsule, Microcrystalline Cellulose, Leucine, Silicon Dioxide. Ingrédient médicinal: Fer (diglycinate de fer (II)) (Ferrochel®) 25 mg, Ingrédients non médicinaux: capsule d'hypromellose (dérivé de cellulose), cellulose microcristalline, L-leucine, dioxyde de silicium. Ingrédient médicinal: Fer (diglycinate de fer (II)) (Ferrochel®) 25 mg, Ingrédients non médicinaux: capsule d'hypromellose (dérivé de cellulose), cellulose microcristalline, L-leucine, dioxyde de silicium.
Directions
Take 1 capsule daily or as recommended by your health professional. Take with food. Take a few hours before or after taking other medications.
Legal Disclaimer
These products are not intended to diagnose, treat, cure or prevent any disease. Please contact your healthcare professional immediately if you experience any unwanted side effects. The information contained herein is for informational purposes only and does not establish a doctor-patient relationship. Please be sure to consult your physician before taking this or any other product.Manufactured by Thorne Research, Inc. 620 Omni Industrial Blvd., Summerville SC 29486. Imported by GAB Innovations, Inc.7860 Venture Street, Burnaby, BC.
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.
From the brand

Product Description


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.
Trusted Manufacturer
For more than 30 years, Thorne has been trusted by health-care practitioners who prescribe our products to their patients. In addition, our products are now recommended by U.S. National Teams and multiple professional sports teams for their elite athletes. Thorne products are a testament to Thorne's mission to provide high-quality supplements that are tested for quality, safety, and efficacy. Tested by NSF 2023.
Convenient Protocol
One capsule per day use for convenience and ease.
Greater Absorption
25 mg of elemental iron per capsule reacted with glycine for optimal absorption.*
Designed for Sensitivities
Iron Bisglycinate uses iron in a form that enhances its absorption without gastrointestinal side effects.*

Thorne offers a choice of nutritional supplements to support an active lifestyle and to achieve goals – no matter what they are. Although there are many different paths to peak performance, what remains constant is meeting basic hydration and electrolyte needs, maintaining the body’s normal
inflammatory response, and getting enough sleep. Just as fueling activity is important, so is the importance of maximizing recovery from that activity. Implementing an effective recovery strategy involves accounting for the metabolic demands of training, rehydrating, and supporting recovery from injury. Many Thorne products offer supplementation to meet these needs. Thorne's Sports Performance products are trusted by athletes and health-care practitioners to allow individuals to personalize their pre- and post-workout routine based on their specific needs.*
*FDA disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
When the highest standards have been met, Thorne creates higher ones.
Sourcing Exceptional Ingredients
We develop better standards for higher quality ingredients. Thorne cares deeply about where our ingredients come from. We partner only with suppliers whose practices emphasize quality, science, and responsibility. Better ingredients means better potency, absorption, and digestibility - and ultimately better health.
Manufacturing the Right Way
We manufacture our own products to ensure full supply chain transparency. For more than 30 years, we have invested in clean manufacturing practices. We refuse to use ingredients that can inhibit absorption. We perform our final production in the United States. Our Charleston, SC facility is third-party certified.
Four Rounds of Review
We run four rounds of testing for each of our products. We have invested in two state-of-the-art in-house laboratories that allow us to conduct four rounds of testing. We test our raw materials, in-process batches, finish products, and product stability for each product.
Our Impact
Thorne is guided by the drive to make the world healthier. Through sustainable ingredients, informed consumers, and responsible operations, we are empowering people to take control of their health and wellness, as well as the health of their planet.
Product information
Technical Details
Additional Information
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Product details
- Product Dimensions : 5.31 x 5.31 x 9.45 cm; 0.02 g
- Date First Available : June 7 2016
- Manufacturer : Thorne Research
- ASIN : B07B6GN9PR
- Manufacturer reference : ZM226
- Country of origin : USA
- 鶹 Rank: #1,134 in Health & Personal Care (See Top 100 in Health & Personal Care)
- #12 in Iron Mineral Supplements
- Customer Reviews:
Brands in this category on 鶹
Customer reviews
Customers say
Customers like the digestibility, iron content, and quality of the mineral supplement. They mention it's easy to swallow, doesn't cause stomach upset, and has no taste. Customers also say it helps improve their iron levels. However, some customers have mixed opinions on its side effects.
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Customers like the digestibility of the product. They mention it's easy to swallow, doesn't upset their stomach, and causes less constipation. Customers also say the flavour is the best they could ask for, and they're feeling good.
"...would give me GI distress but this was supposed to be easy on the stomach...." Read more
"...It doesn’t cause any stomach upset, no nausea, and no weird aftertaste, which has always been an issue for me with other brands...." Read more
"Package was intact. No taste and easy to swallow...." Read more
"Crack open a pill the whole room smells like blood. Easy on the stomach" Read more
Customers are satisfied with the iron content of the product. They mention it's effective, helps improve anemia, and is the best iron supplement they have ever tried. Some say it's easy on the stomach and works to help their anemia.
"This is hands down the best iron supplement I’ve ever taken...." Read more
"Fast, effective and positive relief from her monthly condition! ;)" Read more
"Best Iron Supplement..." Read more
"Ordered a few times now. Easy on the digestive system. Works great! Fast shipping" Read more
Customers are satisfied with the quality of the mineral supplement. They mention it's a good product and they love thorne products.
"Great product, doesn't constipate me & I do feel more energy. I wish they made it in a higher dose bec I am recommended to take 75mg." Read more
"I've always found Thorne supplements to be high quality whenever I've used them. Highly recommend!" Read more
"There is no after taste. Easy to swallow. Good brand name. Good product. Good price." Read more
"...i bought these and will recommend to anyone who wants a good quality iron supplement!" Read more
Customers say the product increases their energy. They mention it doesn't constipate them, they have a better mood, and are handling cardio exercise like a champ.
"...less pain in my body, I was able to breathe while working out, I had more energy and less fair falling out.i had no digestive issues either but I..." Read more
"...much better within two weeks of taking them - I feel stronger, more energetic, and am handling cardio exercise like a champ...." Read more
"...2 weeks into the bottle and I feel great and actually have a better mood and energy. I'm not sure but I believe it's these!..." Read more
"...if it had the effect expected (raise my iron levels), but I feel less tired overall." Read more
Customers like the flavor of the mineral supplement. They mention it has no taste and is easy to swallow.
"...They are small capsules - No after taste - Good price for the number of pills in the bottle..." Read more
"...It seems gentle on my system with no after taste. My energy has definitely increased with this supplement...." Read more
"...they're really easy to swallow, the flavour is the best you could ask for of an iron supplement, and really considering you'll only need 1 a day,..." Read more
"Package was intact. No taste and easy to swallow...." Read more
Customers are satisfied with the iron supplement. They mention it's best absorbed with minimal side effects.
"...I am so happy with them! I have had no adverse side effects that Ive had with other supplements. Would totally recommend!" Read more
"No side effects." Read more
"This type of iron is best absorbed with minimal side effects. It actually helps bring up the level...." Read more
"No side effects..." Read more
Reviews with images

Best Iron Supplement I’ve Ever Used!
Top reviews from Canada
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- Reviewed in Canada on July 13, 2025Verified PurchaseThis is hands down the best iron supplement I’ve ever taken. It doesn’t cause any stomach upset, no nausea, and no weird aftertaste, which has always been an issue for me with other brands. It’s gentle and effective, and has really helped me maintain healthy iron levels. I’ve tried many over the years, but I won’t use anything else now. Highly recommended!
5.0 out of 5 starsThis is hands down the best iron supplement I’ve ever taken. It doesn’t cause any stomach upset, no nausea, and no weird aftertaste, which has always been an issue for me with other brands. It’s gentle and effective, and has really helped me maintain healthy iron levels. I’ve tried many over the years, but I won’t use anything else now. Highly recommended!Best Iron Supplement I’ve Ever Used!
Reviewed in Canada on July 13, 2025
Images in this review
- Reviewed in Canada on May 22, 2025Verified PurchaseOrdered a few times now. Easy on the digestive system. Works great! Fast shipping
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Reviewed in Canada on July 27, 2025Verified PurchaseFacile à digérer.
- Reviewed in Canada on February 25, 2025Verified PurchaseThey are exactly what i was looking for and the price is actually very good. I'm impressed enough that i will continue using them
- Reviewed in Canada on October 18, 2023Verified PurchaseI have been taking these for few months and I can say I like everything about these.
- They don't cause constipation like other brands
- They are small capsules
- No after taste
- Good price for the number of pills in the bottle
I take them at night with a tablet of vitamin C for better absorption (as recommended by my naturopath).
- Reviewed in Canada on April 13, 2023Verified PurchaseThis product saved my life. I always thought it was possible I was anemic, but it wasn't until I tried this supplement that I knew for sure. I've taken iron before but didn't feel a change. With these, after a few days I had less pain in my body, I was able to breathe while working out, I had more energy and less fair falling out.i had no digestive issues either but I take it with food and liposomal vitamin c since they work together. I also take other supplements like B12 and magnesium and I do think they all work together very well. Thank God for companies like thorne 🙏 give it a try, you won't regret it.
- Reviewed in Canada on July 15, 2025Verified PurchaseAs described.
- Reviewed in Canada on October 1, 2021Verified PurchaseI've been struggling with low iron on and off for the last year, mostly because the generic brand supplements I was taking were high dose, low absorption, and generally made me feel like garbage and gave me HUGE GI discomfort. these things seem to be low dose with high absorption, and I'm feeling much better within two weeks of taking them - I feel stronger, more energetic, and am handling cardio exercise like a champ. they're really easy to swallow, the flavour is the best you could ask for of an iron supplement, and really considering you'll only need 1 a day, they're quite affordable. can only recommend!
Disclaimer:While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read and follow labels, warnings, and directions before using or consuming a product. This product may not be right for you. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. 鶹.ca assumes no liability for inaccuracies or misstatements about products.