By simply taking 2 capsules of MAS Iron before bed, you can expect to experience:
Chelated iron, such as the iron bisglycinate in MAS Iron, is iron bound to two molecules of the amino acid glycine.
This form improves absorption because the two molecules of glycine block dietary factors like fiber from interfering with absorption.
The bisglycinate form is also more soluble, which translates to better absorption, which in turn decreases gastrointestinal side effects like constipation and stomach upset.
What does the science say about iron bisglycinate?
“Ferrous Sulfate Oral : Uses, Side Effects, Interactions, Pictures, Warnings & Dosing.” WebMD.
“Iron Deficiency Treatment for Chronic Fatigue Symptoms.” University Health News, 5 Mar. 2019.
Duque, X., Martinez, H., Vilchis-Gil, J. et al. Effect of supplementation with ferrous sulfate or iron bis-glycinate chelate on ferritin concentration in Mexican schoolchildren: a randomized controlled trial. Nutr J 13, 71 (2014).
Bumrungpert A, Pavadhgul P, Piromsawasdi T, Mozafari MR. Efficacy and Safety of Ferrous Bisglycinate and Folinic Acid in the Control of Iron Deficiency in Pregnant Women: A Randomized, Controlled Trial. Nutrients. 2022 Jan 20;14(3):452.
Milman N, Jønsson L, Dyre P, Pedersen PL, Larsen LG. Ferrous bisglycinate 25 mg iron is as effective as ferrous sulfate 50 mg iron in the prophylaxis of iron deficiency and anemia during pregnancy in a randomized trial. J Perinat Med. 2014 Mar;42(2):197-206.
Alpha-GPC is a choline-containing phospholipid. When ingested, alpha-GPC is rapidly absorbed and easily crosses the blood-brain barrier.
It is most well-known as a nootropic for cognitive-enhancement purposes. However, research has also shown it can enhance the absorption of iron.
Front. Neurosci., 24 June 2020 Sec. Neurodegeneration Volume 14 – 2020.
Armah CN, Sharp P, Mellon FA, Pariagh S, Lund EK, Dainty JR, Teucher B, Fairweather-Tait SJ. L-alpha-glycerophosphocholine contributes to meat’s enhancement of nonheme iron absorption. J Nutr. 2008 May;138(5):873-7. doi: 10.1093/jn/138.5.873. PMID: 18424594.
Vitamin C is perhaps one of the most-well known vitamins and minerals to help enhance iron absorption.
The mechanism behind Vitamin C working so well to enhance iron absorption appears to be that it captures non-heme iron and stores it in a form that your body can absorb more easily.
Walczyk T, Muthayya S, Wegmüller R, Thankachan P, Sierksma A, Frenken LG, Thomas T, Kurpad A, Hurrell RF. Inhibition of iron absorption by calcium is modest in an iron-fortified, casein- and whey-based drink in Indian children and is easily compensated for by addition of ascorbic acid. J Nutr. 2014 Nov;144(11):1703-9.
Fidler MC, Davidsson L, Zeder C, Hurrell RF. Erythorbic acid is a potent enhancer of nonheme-iron absorption. Am J Clin Nutr. 2004 Jan;79(1):99-102
Ems T, St Lucia K, Huecker MR. Biochemistry, Iron Absorption. [Updated 2023 Apr 17]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan-.
Lynch SR, Cook JD. Interaction of vitamin C and iron. Ann N Y Acad Sci. 1980;355:32-44.
BioPerine is a regulated black pepper extract containing 95% piperine.
BioPerine has been shown in research to enhance the absorption of several nutrients and other supplements.
Specifically when it comes to iron absorption…
BioPerine is a great example of the cutting-edge ingredients found in MAS Iron you won’t find in traditional iron supplements.
Fernández-Lázaro D, Mielgo-Ayuso J, Córdova Martínez A, Seco-Calvo J. Iron and Physical Activity: Bioavailability Enhancers, Properties of Black Pepper (Bioperine®) and Potential Applications. Nutrients. 2020 Jun 24;12(6):1886.
Badmaev V, Majeed M, Prakash L. Piperine derived from black pepper increases the plasma levels of coenzyme Q10 following oral supplementation. J Nutr Biochem. 2000 Feb;11(2):109-13.
Lynch SR, Cook JD. Interaction of vitamin C and iron. Ann N Y Acad Sci. 1980;355:32-44.
Vitamin B6 is needed for red blood cells to form and it’s needed for iron to convert into hemoglobin.
Thus, low levels of B6 can cause anemia and many other health problems.
Studies have also found that Iron and vitamin B6 together increase hemoglobin levels more than iron only.
Ghannam, M. , Hussain, S. , Osman, A. and Safwat, S. (2023) Iron versus Iron and Vitamin B6 Supplementation in Treatment of Iron Deficiency Anemia during Second Trimester of Pregnancy: Quasi Experimental Trial. Open Journal of Obstetrics and Gynecology, 13, 814-824.
Blood loss is one of the primary causes of iron deficiency. And given B12 is required for the production of red blood cells, a deficiency in Vitamin B12 can lead to a deficiency in Iron.
Supplementing with B12 can help negate any impact of low vitamin B12 levels on your iron levels.
Iron has been shown to be notoriously difficult for the body to absorb and utilize.
In fact, iron bioavailability is estimated to be 14% to 18% for those consuming animal products and as low as 5% to 12% for plant-based eaters.
Why is iron so difficult for us to absorb through diet alone?
One reason is that iron-rich plant foods often contain phytates, compounds that bind to iron, rendering it inaccessible to the body as it travels through the digestive tract.
There are also the polyphenols (which include tannins), as well as certain micronutrients and proteins in our foods that inhibit absorption.
It adds up to a broad range of foods and food ingredients that have the potential to inhibit absorption.
It’s not only the iron in your foods that make absorption difficult; all the foods you eat at your meal impact absorption.
Calcium, protein and caffeine have all been shown in research to inhibit the absorption of iron.
Therefore, even when trying to eat a healthy, iron-rich diet, you still may not be getting the iron you need to support your daily needs, especially if you are already low.
Most generic iron supplements use cheaper forms of iron because they know many consumers won’t know the difference.
These cheaper forms of iron have been shown in research to be less effective than more expensive forms of iron, such as ferrous bisglycinate.
Moreover, if you’re using a multivitamin to try and increase your iron uptake, almost nothing is absorbed by the body due to the interference from the other vitamins and minerals found in multivitamins.
MAS Iron combines the most efficiently absorbed form elemental iron with clinically proven ingredients to aid in absorption.
Each ingredient tested alone with iron demonstrated the ability to enhance absorption by 30% to 400%. This is why MAS Iron performs like no other iron product on the market.
The addition of Alpha GPC when taking an iron supplement has been shown to increase absorption up to four times compared with taking iron alone. Alpha GPC has also been shown to increase the absorption of nonheme iron from food sources.
Clinical research on BioPerine has made it clear that black pepper increases the uptake of iron supplements as much as 30%. Researchers believe this is because BioPerine enhances the bioavailability of iron supplements.
Not only is iron bisglycinate better absorbed than all other forms of iron, but research has shown using iron bisglycinate resulted in 50-percent fewer GI side effects compared to the same dose of iron sulfate.
Although you will feel MAS Iron working right away to elevate your iron levels and reduce symptoms of iron-related fatigue and reductions in performance, the best results come with consistent use.
That’s why we recommend taking MAS Iron consistently for 60-90 days, along with measuring your blood work, to get maximum results.
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Try MAS Iron and if you don’t see your iron levels increase after 60 days or you’re unhappy for any reason, just let us know via email or phone and we’ll refund your money. No product return needed or complicated policies.
06 Customer(s) recommended this item
Liking the product so far and very happy with the customer service. I had a few questions about using iron given a few of my issues and their support team got back to me right away.
I bought this product as soon as it launched. Honestly, it almost seemed like they developed the product for my exact issues. I’ve had issues with low iron since I was in college and I tried everything to keep my levels consistently up, even cooking in cast iron pans. I wanted to try this product to see if it was really gentler on my stomach. So far no issues and after only a few weeks I already feel like I do when I know my iron levels are up. I’ll get some blood work soon, but really impressed with the product so far!
It works as advertised and has supercharged my workout progress. Five stars from me.
I was skeptical at first since I may have been one of the first to purchase during their initial launch, but I am happy I did.Order arrived quick with solid packaging. Nice touch. I haven’t been able to test with any labs yet (still too soon) but I have noticed a lot less lethargy throughout the day and I’ve felt a lot better during my workouts the last few weeks.
I have tried other iron supplements in the past, but they always left me feeling bloated and uncomfortable. I didn’t experience any of those unpleasant side effects. Plus, knowing that it is well-absorbed means I can trust that my body is getting the iron it needs.
I’ve been using a gummy iron for quite a while and I really prefer that than taking pills. The pills are small, but I still don’t like taking them. I may purchase the ferritin test to see how much different it is.
Outside of training deficiencies, low iron is one of the most common reasons for poor results during workouts and races.
Recent research indicates that almost 56% of male runners and 86% of female runners suffer from an iron deficiency that severely hampers performance.
Thus, there is a very good chance you have low iron levels and could see improvement from supplementing from iron.
Mas Iron has been proven to be better than any current iron supplement on the market, so if you need to raise your iron levels it’s your best choice.
It’s best to take iron as soon as you wake up or before bed, once per day.
This is because iron is not easily absorbed by the body, especially when it’s taken with other nutrients, such as grains, proteins, calcium and caffeine.
While the product itself has many ingredients to aid in absorption, it’s still best to take it outside of meal times.
2 capsules, once per day.
If you have your bloodwork done and you’re in your “optimized zone” then you can pull back to one pill per day as maintenance.
Because it’s difficult to absorb iron from the foods we eat, light supplementation is still recommended when you’re at your optimized levels.
Yes, absolutely. While we do recommend getting your blood work done periodically (every 3-6 months) it’s perfectly fine to take iron without this.
We recommend blood work because with the technology available these days, it’s relatively cheap and easy to do at home and getting an accurate picture of your health is always a smart idea.
Please email us at support@masedge.com with the word “Cancel Order” in the subject line. Please note that we cannot guarantee order cancellation as we ship very quickly – but we’ll do our best.
At this time, we are unable to make any changes or edits to orders once they have been shipped – this includes the shipping address. Please review your information before completing your order.
Many companies offer a money-back guarantee because they know the majority of dissatisfied customers aren’t going to go through the hassle of actually returning the product to get their money back.
We don’t play these games because we don’t have to, the quality of our products makes it unnecessary.
If you order any of our supplements for the first time and don’t like it, you can keep it. Just notify us and we’ll give you a full refund. No complicated forms and no return necessary.
To protect ourselves from fraud, the It’s-On-Us guarantee is only valid for first-time purchases of a product, and redeemable up to 365 days after purchase. If you bought more than one supplement and weren’t happy with your purchase, in some instances, we may ask that you send the products back to us for a refund. Don’t worry though, you’ll never have to pay for return shipping.
Yes, just login to your account here and you’ll be taken to the subscriptions page where you can modify your preferences.
Most US orders arrive within 3 to 5 business days, but can take up to 7 business days.
Orders to Canada and the UK usually arrive in 10 to 14 days. Orders to other countries generally arrive within 14 to 21 days. Customs clearance may add a few extra days to this as well.
Yes, you will receive a tracking number via email.
Some orders get marked as delivered by our fulfillment house when they’re actually a day or two away.
If your order hasn’t arrived within two business days of being marked as delivered, contact us and we’ll help you out.
Unfortunately, we can’t ship to some countries because they’re very strict on what supplements they will and won’t allow to cross their borders, and too many customers were losing their orders.
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The Most Well-Absorbed, Gentle Iron Supplement