Key Takeaways
- Iron bisglycinate is a form of iron used in nutritional supplements.
- It may be easier on the stomach than some other iron forms, though results vary.
- Iron helps your body make haemoglobin and red blood cells.
- Heavy periods can increase iron loss and the risk of iron deficiency.
- Check your iron levels and consult your doctor before starting supplements.
When you get your period, you lose some iron through menstrual bleeding. If your periods are heavy, this loss can be more. Your diet does not contain enough iron to replace what you lose from your body. This is why a lot of menstruating women look into iron supplements. But iron comes in different forms, and iron bisglycinate is one of them. We will explain what iron bisglycinate is, what the benefits are, why it is used in supplements and why women need iron during periods.
What Is Iron Bisglycinate?
Iron bisglycinate is a form of iron used in nutritional supplements. It contains iron bound to two molecules of glycine, an amino acid. This combination is known as a chelate. You may see it listed as ferrous bisglycinate on supplement labels.
Different iron supplements use different forms of iron. Ferrous sulfate and ferrous fumarate are two other examples. The form matters because researchers study how well the body absorbs iron from these compounds and how well people tolerate them.
Iron bisglycinate is one form used in supplements designed to provide iron. If you read the ingredient label, you will be able to compare the products clearly.
What Are the Benefits of Iron Bisglycinate?
Iron bisglycinate is used in iron supplements because researchers have studied its absorption and how well people tolerate it. These features make it an option worth understanding when comparing iron supplements.
Here are some important points about this form of iron:
- Iron supply: It provides iron, which your body needs to make haemoglobin and red blood cells.
- Absorption: Research has examined how the body absorbs iron bisglycinate compared with other iron forms. Results can vary across groups and study settings.
- Digestive tolerance: Studies, including research in pregnant women, have reported fewer digestive complaints with iron bisglycinate than with some comparison supplements.
- Supplement choice: It offers another option for people comparing the forms of iron used in nutritional supplements.
Iron bisglycinate is not automatically the best choice for everyone.
Your iron needs and the amount of elemental iron in a supplement also matter when comparing products. If you want to supplement yourself with both nutrients, read our article on whether women should take iron and vitamin B12 together daily.
Why Do Women Need to Replenish Iron During Periods?
Every time you get your period, you lose some iron along with menstrual blood. Your body uses iron to make haemoglobin.
Haemoglobin is the protein that carries oxygen in your blood. If your periods are heavy, you actually lose more iron than your body can replace through regular food. Low iron levels can affect your lifestyle.
You may have:
- Tiredness or weakness
- Shortness of breath during daily activities
- Difficulty keeping up with your usual routine
Eating iron-rich foods can help with your daily needs. If you have heavy periods, your doctor may recommend blood tests to check your iron levels before suggesting supplements.
How Is Iron Bisglycinate Different from Other Iron Forms?
Iron bisglycinate, ferrous sulfate and ferrous fumarate are three forms used in iron supplements. The main difference is in how iron is combined with other compounds.
Iron bisglycinate binds iron to glycine, an amino acid. Ferrous sulfate and ferrous fumarate are iron salts.
Researchers have compared these forms to understand iron absorption and digestive tolerance.
The results can vary depending on the group studied and the supplement used. No single form is best for everyone.
How to Choose an Iron Supplement for Period-Related Iron Loss
When choosing an iron supplement, check the form of iron and the amount of elemental iron listed on the label.
Vitamin B12 is another nutrient to consider, as it supports red blood cell formation and nerve function. HealthFab’s Iron + Vitamin B12 Effervescent Supplement combines iron bisglycinate with vitamin B12 in an effervescent tablet.
Your choice should depend on your nutritional needs, not just the ingredient name. If heavy periods concern you, speak to your doctor about checking your iron levels before starting supplements.
Making the right choice
Iron bisglycinate is one form of iron used in nutritional supplements. If you have heavy periods, keep an eye on your iron intake. Your diet, menstrual blood loss and individual nutritional needs all matter when choosing a supplement. If you are unsure about your iron levels, speak to your doctor before starting a supplement.
Frequently Asked Questions about Iron Bisglycinate
Is iron bisglycinate better than regular iron?
Iron bisglycinate is one kind of iron used in dietary supplements. This compound contains iron attached to glycine, but ferrous sulfate and ferrous fumarate are iron salts.
Some research found that this supplement has higher tolerance in digestion for particular groups. It does not mean that iron bisglycinate works equally good for everyone, as each person has different requirements for iron, and the effectiveness of any iron supplement depends on the composition of the supplement and individual body response.
How quickly does iron bisglycinate raise ferritin?
Ferritin is a special protein in your body storing iron, and the level of this protein indicates your iron reserves.
The ferritin level should not change right after you start taking an iron supplement. The speed of this change depends on your initial ferritin level, the amount of iron you absorb, your diet, as well as possible blood loss.
Your doctor is likely to order a number of tests over the next couple of months to control the changes in your blood.
Is it okay to take iron bisglycinate every day?
Iron bisglycinate can be taken on a daily basis if it is a part of an adequate supplement regimen. Whether daily doses are necessary is dependent on the levels of iron, diet as well as the cause behind taking it. Individuals experiencing heavy flow may want to consult their doctor regarding the haemoglobin and ferritin levels.
You should take the recommended dosage or heed the doctor's recommendation as well as refrain from taking two separate iron supplements at the same time unless directed. The extra iron can lead to toxicity if taken without the requirement.
What is the daily dosage of iron bisglycinate?
The adequate dose of iron bisglycinate on a daily basis cannot be generalized.
Your specific requirement of iron bisglycinate depends on the specific product being used, your age and further you are iron insufficient or not. It is important to know that the entire weight of the compound is not the same as that of iron it contains.
It is essential to thoroughly check the label of the product and consult a doctor regarding the amount of the supplement based on tests indicating low levels of iron.
What are five unexpected signs of low iron?
Low iron can cause symptoms beyond tiredness. You may notice changes in your hair, nails or mouth, or feel unusual urges to eat things that are not food. Some people also experience restless legs or ringing in their ears.
References:
Fischer JAJ, Cherian AM, Bone JN, Karakochuk CD. The effects of oral ferrous bisglycinate supplementation on hemoglobin and ferritin concentrations in adults and children: a systematic review and meta-analysis of randomized controlled trials. Nutr Rev. 2023 Jul 10;81(8):904-920. doi: 10.1093/nutrit/nuac106. PMID: 36728680; PMCID: PMC10331582.
National Institutes of Health, Office of Dietary Supplements. (n.d.). Iron: Fact sheet for health professionals. https://ods.od.nih.gov/factsheets/Iron-HealthProfessional/
World Health Organization. (2025). Anaemia. https://www.who.int/news-room/fact-sheets/detail/anaemia
Comments