Ferrochel is a patented form of iron supplement made by bonding iron to two molecules of glycine, the simplest amino acid. Its chemical name is ferrous bisglycinate chelate, and it was developed by Albion Laboratories (now part of Balchem Corporation). The key selling point: iron absorbed from Ferrochel is roughly twice as bioavailable as the same amount of iron from ferrous sulfate, the most common and cheapest form of iron supplement.
How Ferrochel Differs From Regular Iron
Most standard iron supplements use iron salts like ferrous sulfate, ferrous gluconate, or ferrous fumarate. These dissolve in your stomach and release free iron ions, which then compete with other minerals and food compounds for absorption. Ferrochel works differently. The iron atom sits inside a protective shell formed by two glycine molecules, creating a small, stable structure with a molecular weight of about 204. This chelated structure keeps the iron from reacting freely in your digestive tract.
That stability matters for two reasons. First, because the iron isn’t floating around as a free ion, it’s less likely to irritate your stomach lining or cause the metallic taste, nausea, and constipation that make many people quit their iron supplements. Second, the chelated form appears to use a different absorption pathway in the intestine. Rather than relying solely on the same transport system as free iron, the glycine-wrapped molecule can be taken up partly through pathways used for small proteins, which gives it an absorption advantage.
Absorption Rates Compared to Ferrous Sulfate
A study published in The Journal of Nutrition tested iron absorption from Ferrochel against ferrous sulfate using breakfasts made with corn flour and wheat flour. In iron-deficient subjects eating the corn flour meal, average absorption was 6% from ferrous sulfate and 13% from Ferrochel. With the wheat flour meal, the numbers were 7% and 12%, respectively. Across both food types, Ferrochel delivered about twice the absorbed iron as ferrous sulfate at the same dose.
This is particularly relevant if you eat a plant-heavy diet. Many plant foods contain phytates (found in grains, beans, and nuts) that bind to free iron and block absorption. Ferrochel partially prevented the inhibitory effect of phytates in testing, likely because the glycine shell protects the iron from being grabbed by these compounds before it reaches your intestinal wall.
That said, Ferrochel isn’t immune to all dietary interference. Polyphenols, the compounds in coffee and tea, still reduce its absorption. In the same study, espresso-style coffee and tea cut Ferrochel absorption by about 50%. Regular American-style coffee had no significant effect. So timing your supplement away from strong tea or espresso still matters.
Safety and Regulatory Status
Ferrochel holds Generally Recognized as Safe (GRAS) status with the U.S. FDA. Albion Laboratories submitted a GRAS notification for ferrous bisglycinate chelate as a source of dietary iron for food enrichment and fortification, and the FDA responded with “no questions,” its standard signal of acceptance. The intended use covers foods in general, not just supplements.
The chelate’s low chemical reactivity also translates to low toxicity. Because the iron is bound rather than free, it’s less prone to generating the oxidative stress that free iron ions can cause in the gut. This is part of why it tends to be gentler on digestion.
Use in Food Fortification
One of Ferrochel’s practical advantages is that it plays well with food. Free iron salts are notorious for turning foods dark, creating off-flavors, and accelerating fat oxidation (the process that makes oils go rancid). Because Ferrochel’s iron is locked inside its glycine shell, it has limited chemical reactivity with food components. It dissolves well in water-based solutions even at near-neutral pH, making it suitable for fortifying beverages, dairy products, and other liquids where ferrous sulfate would cause discoloration or metallic taste.
It also degrades vitamins less during storage. When iron supplements are stored alongside vitamins like vitamin C or B6, metal sulfates break those vitamins down faster than amino acid chelates do. This makes Ferrochel a better companion ingredient in multivitamin formulations.
There are trade-offs, though. Ferrochel costs more than ferrous sulfate, and in cereal-based foods it can still promote some fat oxidation and color changes, similar to other soluble iron forms. It’s not a perfect solution for every food application, but it covers more ground than traditional iron salts.
What This Means for Choosing a Supplement
If you’ve tried ferrous sulfate and struggled with stomach upset, Ferrochel (or generic ferrous bisglycinate) is one of the better-tolerated alternatives. Its higher absorption rate also means you may be able to take a lower dose and get the same benefit, which further reduces the chance of side effects. Many supplement labels list “ferrous bisglycinate chelate” or “iron bisglycinate” rather than the brand name Ferrochel, but the molecule is the same.
Look at the elemental iron content on the label, not just the total milligrams of the chelate compound. Ferrochel is about 20% elemental iron by weight, so a capsule containing 200 mg of ferrous bisglycinate chelate delivers roughly 25 to 28 mg of actual iron. The WHO recommends 30 to 60 mg of elemental iron daily for pregnant women, with higher doses in regions where anemia is widespread. Your target dose depends on whether you’re preventing deficiency or treating diagnosed anemia.
The bottom line: Ferrochel is a well-studied, FDA-accepted chelated iron with roughly double the absorption of ferrous sulfate, better tolerance for most people, and fewer interactions with food. It costs more per dose, but if standard iron supplements give you trouble, it’s one of the most practical upgrades available.