THORNE Iron Bisglycinate, 25 mg Iron Supplement, 60 Capsules | Enhanced Absorption Without Gastrointestinal Side Effects*, Chelated Iron Capsules, Gluten-Free, NSF Certified for Sport

I recently started seeing a functional medicine doctor to address some issues I've been having and the first they had me do was a full blood workup. When the results came back one of the most glaring issues was my blood iron (ferritin) level. Ideal levels for a woman my age should be 100-150+ ug/L. My level was 18!! The doctor asked me how I managed to get out of bed in the morning and how I can go up and down stairs without fainting, let alone live my life! It's amazing how you can get used to such a poor quality of life when it creeps up on you and you don't know any different. I immediately started taking iron at triple the recommended dose to make up for my severe deficiency and stop the 'iron leak' I seem to have in my body. After bouncing around between a few different supplements, I have settled on this one and I love it! I take 2 per day (that's what my doctor recommended even though the bottle says 1) and I no longer get dizzy and light headed, I don't bruise as easily as I used to and I just feel so much better over all! If you're deficient in iron, some of the symptoms you might experience are fatigue, dizziness, shortness of breath, difficulty concentrating, difficulty regulating body temperature or often feeling cold, pale skin, heart palpitations, shortness of breath, headaches, hair loss, restless leg syndrome, itchiness, more frequent bouts of illness and ringing, hissing or buzzing in your ears. My doctor says almost EVERYONE is deficient in iron, so this might be something you should take even if you're NOT experiencing these symptoms! One of the reasons I chose this particular brand is because it uses a chelate which is more highly absorbable by the body than cheaper carbonates, oxides, sulfates and phosphates and it doesn't have a bunch of crap additives in it. Additionally, the pills are TINY and super easy to swallow! I use some other Thorne supplements as well and really like them. That being said, not ALL of Thorne's stuff is the best of the best, but when it comes to my iron levels, this has worked wonders and I can definitely recommend! I sincerely hope this review has been helpful to someone else! And yes, I pay full price for this. I get it monthly in my subscribe and save. Feel free to ask any questions!

I took this consistently every evening with a cup of orange juice for the past 2 1/2 months and my ferritin level jumped from 12 to 35!!! The capsules aren’t very big and are easy to swallow. No upset stomach. No constipation. I timed my doses so that I didn’t have any coffee or dairy an hour or two before or after since they interfere with absorption. Highly recommend!!!

After struggling with iron deficiency for years and experiencing terrible digestive issues with traditional iron supplements, I was hesitant to try yet another product. However, THORNE's Iron Bisglycinate has been a complete game-changer for me. The chelated form truly delivers on the promise of enhanced absorption without the gastrointestinal distress that plagued me with other iron products. What sets this apart is the bisglycinate form - iron bound to the amino acid glycine. This makes it much gentler on the stomach while actually improving bioavailability. I take it on an empty stomach without any nausea, constipation, or stomach upset that I experienced with ferrous sulfate supplements. This alone makes it worth the premium price. The 25mg dosage is perfect for maintenance and gradual improvement. My recent blood work showed steady improvement in iron levels after three months of consistent use, and my doctor was pleased with the progress. I have more energy throughout the day and don't experience the afternoon fatigue that was becoming problematic. THORNE's reputation for quality and third-party testing gives me confidence in what I'm taking. The capsules are easy to swallow, and the bottle is clearly labeled with expiration dates and batch information. No artificial colors, flavors, or unnecessary additives - just pure, effective iron supplementation. While more expensive than drugstore iron supplements, the superior absorption and lack of side effects make this significantly better value in terms of actual results and tolerability. Highly recommend for anyone who needs iron supplementation but has struggled with digestive issues from other products.

I’ve had a great experience with this iron supplement. The capsules are easy to swallow, and unlike many other iron supplements I’ve tried, this one is very gentle on my stomach. I didn’t experience the usual digestive discomfort or constipation. I appreciate the high-quality ingredients and trust the Thorne brand. After taking it consistently, I noticed an improvement in my energy levels, and it has become part of my daily routine. The bottle lasts a good amount of time, and the quality makes it well worth the price. If you’re looking for a well-tolerated, high-quality iron supplement, I would definitely recommend giving this one a try.

I originally chose THORNE’s iron supplement after doing quite a bit of research, especially because I was concerned about how iron supplements can affect digestion. I was looking for something that would be effective but also gentle and easy on the stomach. Honestly, I didn’t expect such a noticeable result. My iron level was very low — around 15 — and after taking this supplement consistently for approximately three months, along with eating more meat and other iron-rich foods, my level increased to around 40. I’m genuinely impressed with the results. I can proudly say that this supplement has worked really well for me, and I’m definitely going to continue purchasing it to maintain and further improve my iron levels. For anyone who is looking for an effective iron supplement that is also gentle on digestion, I would definitely recommend giving THORNE a try.

I had severe anemia. Doctors told me take FE 65mg elemental iron. I could not tolerate those, even the "slow FE" type. I did my own research on brands, types of iron, bind agents, and helpers to potentate the iron. My symptoms were dizziness, fatigue, vertigo, nausea, neuropathy in my hands, constant stomach ache, and inability to eat much. I told the doctors my stomach didn't do well on the 65mg typical supplement. Based on the information I read (some from Thorne's own marketing team admittedly) I chose this product. So far, so good. Well tolerated and many of the above symptoms disappeared or abated. Why only 4 stars you ask, because with 25mg elemental iron this isn't meeting the dose I need to increase my blood iron levels a much a needed. To be fair, that my bodies fault for not tolerating 65 mg of elemental iron. My doc told me this wasn't good enough if it didn't have 50-65 elemental due to my need. It is obviously improving my anemia due to the rapid relief from symptoms I had for years. The doctor showed me a graph of the last 10 year iron levels from lab work. The wise in iron indeed is not dramatic yet. After reading reviews here I asked the nurse practitioner if I could try taking two of these a day before going to the harsher formulations. She said she didn't know and couldn't immediately find any reference on this formulation that met the office's standards for peer reviewed, published data. We know we often won't find that for supplements since there are no obscene profits or patents on vitamins and supplements (it's a crime they don't tell us the true requirements for vitamin D3 when 10,000IU a day could significantly boost immune in northern states in the winter). The NP said "I advise you to take one with 65mg. I can't say for sure if you should go off label with this formulation." I told her: "I'm going to try it because this has been a game changer in how I feel and has nearly no bad side effects. Just a couple days in to 2 a day. It bothers my stomach a bit more. In fact, about twice as much as one pill (go figure). I'm going to stick with because I think this 2 pills of Thorne Research - Iron Bisglycinate will bring 50 mg Iron Supplement in an effective formula. I just hope it isn't too much. I've bought several Thorne products and I am growing fond and trusting of the brand. I recommend you try these but please get clear info from doctors on severity of your need. The NP suggested I do more research on Iron Bisglycinate and other improved absorption and we will monitor the blood iron levels. FWIW I started this treatment (with one pill) at the same time as Vitamin B12 Cyanocobalamin injections. There was some magic one/two punch with the two treatments that seemed to wipe away years of pain and discomfort. Check you B12, Iron, D and other critical vitamins/minerals. Sometimes the answer is a relative affordable over-the-counter readily available supplement.

Raised ferritin from 72 to 92 in 6 weeks and corrected iron saturation numbers. The ferritin levels are what really matters and takes time to rebuild. Already feel better since supplementing. I take 1 pill fasted when I wake up and only have water for 2 hours.

My ferritin was on the lower side (35) and I’ve been having issues with brittle hair so I started taking this every other night for the past six weeks and I just got my blood work back and my ferritin has gone up 20 points (now at 55). I don’t experience any side effects with this supplement and I usually do not eat dinner so it’s taken on an empty stomach. It’s recommended that you don’t take it with food and that you also avoid any dairy within an hour of taking this but vitamin C can help it absorb so you could take it with a small glass of orange juice. I also read a couple studies about how iron is absorbed and that you actually get better absorption if you take it every other night so it might be worth trying. It certainly feels like it’s worked well for me.

These are gentle on the stomach but beware of oxidation. I had them for around a year and by the end and after comparing to the new pack, these were completely oxidized (brown) and probably completely ineffective. Best to use them up quickly.

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毎日の食生活だけでは鉄分が不足しがちだと感じ、継続しやすいサプリメントを探して購入しました。ビスグリシネート鉄を使用しているためか、一般的な鉄分サプリよりも飲みやすく感じ、毎日無理なく続けられています。カプセルも大きすぎず、水と一緒にスムーズに飲めました。 1日1カプセルで必要な鉄分を手軽に補えるので、忙しい日でも習慣にしやすい点が気に入っています。60粒入りで約2か月分あるため、コストパフォーマンスも悪くありません。 一方で、海外製サプリということもあり、価格は国産製品と比べるとやや高めに感じました。また、サプリメントは即効性を期待するものではなく、継続して取り入れることが大切なので、数日で変化を求める方には向かないと思います。 品質や飲みやすさを重視したい方には選択肢の一つになるサプリメントだと感じました。

Thorne Iron Bisglycinate is a total game-changer for anyone who needs an iron boost but dreads the usual stomach drama. It’s gentle on digestion—no cramps, no nausea, and no awkward rush to the bathroom (you know what I mean). I’ve been taking it daily, and my energy levels have noticeably improved, especially during workouts and long days. The capsules are small and easy to swallow, and it’s NSF Certified for Sport, which gives me peace of mind that it’s clean and free from junk. Plus, it’s gluten-free, so no worries for those with sensitivities. The only downside? It’s on the pricier side for an iron supplement, but the lack of side effects makes it worth every penny. Also, you’ll need to pair it with vitamin C-rich foods or drinks to maximize absorption, but that’s an easy fix (hello, orange juice!). If you’re tired of iron supplements that make you feel worse than being anemic, this one’s a must-try. It delivers results without any of the hassle. 4.8/5

I’ve tried so many supplements over the years, and most of them have upset my stomach. This one is a game-changer! I started taking it a few weeks ago, and it’s been nothing but smooth sailing. No discomfort, no bloating, and no queasiness – even when I take it on an empty stomach.