We evaluated how switching to ferric citrate hydrate (FCH) impacts nausea in women with iron deficiency anemia (IDA) who struggled with oral iron. In a multicenter study of 30 patients, those on FCH experienced significant improvements. Nausea scores dropped from 5.7 to 1.7, and the overall incidence of nausea decreased notably. Also, 80% reported better experiences compared to previous treatments.
Overall, our findings suggest that FCH not only enhances medication adherence but also effectively reduces nausea and improves quality of life in these patients.
Read More
9
Iron treatment eases nausea in pregnancy
Efficacy and Safety of Microsomal Ferric Pyrophosphate Supplement for Iron Deficiency Anemia in Pregnancy.
We conducted a study to examine the effectiveness of a specific iron supplement, emulsified microsomal ferric pyrophosphate (EMFP), in treating iron deficiency anemia among pregnant women. Our focus was not only on improving hemoglobin levels but also on alleviating related symptoms, including nausea.
Within 30 days of starting treatment with EMFP, we observed significant increases in hemoglobin levels, alongside marked improvements in serum ferritin and iron levels. As nausea is a common complaint among pregnant women, we noted a decrease in various symptoms, including nausea, breathlessness, and dizziness, which contributed to a better quality of life for the participants.
Notably, treatment compliance was remarkably high at 99.5%, indicating that the participants were committed to managing their anemia effectively. Importantly, we did not encounter any severe side effects related to the treatment, suggesting a favorable safety profile.
Overall, our findings support the idea that iron treatment can help alleviate nausea and other discomforts related to iron deficiency anemia in pregnancy, positively impacting both mother and baby.
Read More
7
Daily vs. TIW iron supplementation
Daily versus three times weekly dosing for treatment of iron deficiency nonanemia in NCAA Division 1 female athletes.
We explored the effects of daily versus three times weekly (TIW) oral iron supplementation on nausea in NCAA Division 1 female athletes. The study involved 33 athletes who were either in track and field or soccer. Participants were given either daily doses or TIW doses of ferrous bisglycinate over eight weeks.
Both groups showed an increase in serum ferritin levels, which is a marker of iron stores. However, the TIW regimen resulted in a smaller increase of about 5.17 μg/L, compared to an increase of 12.88 μg/L with the daily regimen. Notably, those taking daily supplements experienced significantly more nausea and constipation than those on the TIW schedule.
While the daily regimen may boost iron levels more effectively, it can come at the cost of increased gastrointestinal discomfort. Meanwhile, the TIW regimen offers a gentler option with fewer side effects, positioning it as a viable alternative for athletes concerned about nausea.
Read More
Most Useful Reviews
9
No nausea
391 people found this helpful
Awesome working additive! I ordered this iron for a friend suffering from muscle myositis. She struggled with low haemoglobin and fatigue, trying various pharmacy drugs with nausea as a side effect. After taking this for 3 months, her haemoglobin rose from 117 to 143, and the product caused no nausea. She's feeling great at work now! I also ordered it for myself for preventative measures. Thank you to the manufacturers for such a wonderful product!
Read More
9
Feeling better
62 people found this helpful
I've suffered from anaemia for years, trying many preparations that caused nausea. I like this drug for its dosage and the absence of side effects. After two weeks, I started feeling better; there’s less fatigue, and I plan to retake my tests soon. Click "yes" if you agree!
Read More
9
No side effects
57 people found this helpful
This chelated form of bisglycinate does not cause nausea or constipation. My tests indicate it's effective, and I highly recommend it to others!
We conducted a study to examine the effectiveness of a specific iron supplement, emulsified microsomal ferric pyrophosphate (EMFP), in treating iron deficiency anemia among pregnant women. Our focus was not only on improving hemoglobin levels but also on alleviating related symptoms, including nausea.
Within 30 days of starting treatment with EMFP, we observed significant increases in hemoglobin levels, alongside marked improvements in serum ferritin and iron levels. As nausea is a common complaint among pregnant women, we noted a decrease in various symptoms, including nausea, breathlessness, and dizziness, which contributed to a better quality of life for the participants.
Notably, treatment compliance was remarkably high at 99.5%, indicating that the participants were committed to managing their anemia effectively. Importantly, we did not encounter any severe side effects related to the treatment, suggesting a favorable safety profile.
Overall, our findings support the idea that iron treatment can help alleviate nausea and other discomforts related to iron deficiency anemia in pregnancy, positively impacting both mother and baby.
Read More
9
FCH reduces nausea in IDA treatment
A Multicenter Single-Arm Study of Switching to Ferric Citrate Hydrate for Iron Deficiency Anemia in Patients Intolerant to Oral Iron: RIO-SWITCH.
We evaluated how switching to ferric citrate hydrate (FCH) impacts nausea in women with iron deficiency anemia (IDA) who struggled with oral iron. In a multicenter study of 30 patients, those on FCH experienced significant improvements. Nausea scores dropped from 5.7 to 1.7, and the overall incidence of nausea decreased notably. Also, 80% reported better experiences compared to previous treatments.
Overall, our findings suggest that FCH not only enhances medication adherence but also effectively reduces nausea and improves quality of life in these patients.
Read More
7
Daily vs. TIW iron supplementation
Daily versus three times weekly dosing for treatment of iron deficiency nonanemia in NCAA Division 1 female athletes.
We explored the effects of daily versus three times weekly (TIW) oral iron supplementation on nausea in NCAA Division 1 female athletes. The study involved 33 athletes who were either in track and field or soccer. Participants were given either daily doses or TIW doses of ferrous bisglycinate over eight weeks.
Both groups showed an increase in serum ferritin levels, which is a marker of iron stores. However, the TIW regimen resulted in a smaller increase of about 5.17 μg/L, compared to an increase of 12.88 μg/L with the daily regimen. Notably, those taking daily supplements experienced significantly more nausea and constipation than those on the TIW schedule.
While the daily regimen may boost iron levels more effectively, it can come at the cost of increased gastrointestinal discomfort. Meanwhile, the TIW regimen offers a gentler option with fewer side effects, positioning it as a viable alternative for athletes concerned about nausea.
Read More
7
Ferric carboxymaltose reduces nausea
Low-dose ferric carboxymaltose vs. oral iron for improving hemoglobin levels in postpartum East Asian women: A randomized controlled trial.
This randomized controlled trial explored how low-dose ferric carboxymaltose (FCM) affects hemoglobin levels and nausea in postpartum East Asian women. Participants received either an intravenous FCM infusion or oral iron for four weeks.
We found that while FCM significantly increased hemoglobin levels after two weeks, both treatments showed no significant difference in final hemoglobin results after four weeks.
Notably, the FCM group experienced fewer gastrointestinal side effects, including nausea, suggesting it may be a more comfortable option for new mothers.
Read More
User Reviews
USERS' SCORE
Moderately Good
Based on 86 Reviews
7.6
All Reviews
Positive Reviews
Negative Reviews
9
No nausea
391 people found this helpful
Awesome working additive! I ordered this iron for a friend suffering from muscle myositis. She struggled with low haemoglobin and fatigue, trying various pharmacy drugs with nausea as a side effect. After taking this for 3 months, her haemoglobin rose from 117 to 143, and the product caused no nausea. She's feeling great at work now! I also ordered it for myself for preventative measures. Thank you to the manufacturers for such a wonderful product!
Read More
9
Feeling better
62 people found this helpful
I've suffered from anaemia for years, trying many preparations that caused nausea. I like this drug for its dosage and the absence of side effects. After two weeks, I started feeling better; there’s less fatigue, and I plan to retake my tests soon. Click "yes" if you agree!
Read More
9
No side effects
57 people found this helpful
This chelated form of bisglycinate does not cause nausea or constipation. My tests indicate it's effective, and I highly recommend it to others!
Read More
9
No discomfort
46 people found this helpful
I'm amazed by the results of this iron. After a year of low haemoglobin, I switched from painful iron supplements to this one. I felt better physically after weeks and my haemoglobin rose from 113 to 144 without any nausea or discomfort. I highly recommend it!
Read More
9
No nausea
37 people found this helpful
I ordered this for my mother, who cannot tolerate other iron supplements that cause severe nausea. There are no side effects with this product, making it an excellent choice for her.
Nausea is a sensation that often precedes vomiting and is characterized by an uneasy feeling in the stomach. It can be caused by a variety of factors, including motion sickness, certain medications, food poisoning, or underlying health conditions. The experience of nausea can range from mildly uncomfortable to intensely distressing and is often accompanied by other symptoms such as sweating, increased salivation, or a feeling of lightheadedness.
Many people experience nausea at some point in their lives, making it a common issue. Fortunately, there are several remedies and treatments available that can help alleviate this unpleasant sensation. Over-the-counter medications, home remedies like ginger tea, and lifestyle changes, such as eating smaller meals or avoiding certain triggers, can be effective in reducing nausea. However, if nausea is persistent or accompanied by severe symptoms like severe abdominal pain or fever, it’s essential to consult with a healthcare professional for an accurate diagnosis and appropriate treatment.
Iron is a chemical element with the symbol Fe, derived from the Latin word "ferrum." It is a metal that is known for its strength and versatility, making it one of the most widely used materials in construction, manufacturing, and various industrial applications. Iron is the fourth most abundant element in the universe by mass and is primarily obtained through the mining of iron ores, such as hematite and magnetite. Once mined, it undergoes processes like smelting and refining to produce usable forms like cast iron, wrought iron, and steel.
In addition to its industrial uses, iron is also crucial for human health, as it plays a significant role in the production of hemoglobin, the protein in red blood cells responsible for transporting oxygen throughout the body. A deficiency in iron can lead to anemia, characterized by fatigue and weakened immunity. Overall, iron is a fundamental element that supports modern infrastructure and is vital for maintaining good health.
Based on user reviews, individuals taking this supplement for nausea generally report varying onset times for noticing results. Some users indicate that they experienced improvements as soon as two weeks after starting the supplement, which they attributed to reduced fatigue and overall well-being Read Review. Others have reported significant improvements in symptoms after just one week, noting the absence of debilitating side effects like nausea and constipation Read Review.
However, a few users mentioned needing a longer duration to see satisfactory effects, with one stating that they felt better physically after a few weeks Read Review. Overall, the consensus seems to favor a timeframe of about one to three weeks for most users to start observing positive changes, while some may experience relief even sooner. As always, individual responses may vary based on personal health conditions and sensitivity to supplements.
Scientific research does support the use of certain iron supplements for alleviating nausea, particularly among specific populations. For instance, a study focused on pregnant women examined the effects of emulsified microsomal ferric pyrophosphate (EMFP) and found that, within 30 days of treatment, participants not only experienced significant improvements in hemoglobin levels but also reported a decrease in nausea and other related symptoms. This points toward the potential of iron supplementation to alleviate nausea associated with iron deficiency anemia in pregnancy [1].
Additionally, a multicenter study evaluating ferric citrate hydrate (FCH) revealed similar results, where women with iron deficiency anemia who switched to FCH noted a significant drop in their nausea scores, from 5.7 to 1.7, enhancing their overall quality of life [4]. These findings suggest that certain iron supplements, like EMFP and FCH, can effectively mitigate nausea, making them beneficial options for individuals suffering from conditions linked to low iron levels.
Users have reported notable improvements in their symptoms after using this iron supplement, particularly relating to anemia and its associated effects. Specifically, individuals have observed significant rises in hemoglobin levels, with some reporting increases from as low as 19 to higher numbers like 40 or more over a span of weeks or months Read Review. Users have also mentioned relief from symptoms like fatigue, dizziness, and migraines, with many indicating that they experienced little to no side effects such as nausea or constipation, which are commonly associated with other iron supplements Read Review.
A substantial number of reviews highlight the product's high absorption rate and easy-to-take capsules as key advantages, allowing users to feel better without the discomfort typical of conventional iron products Read Review. While most experiences are positive, some users did mention moderate to severe reactions, such as gastrointestinal issues, indicating that individual responses can vary Read Review. Overall, many have found this supplement effective for their iron deficiencies and have reported an overall improvement in their well-being after consistent use.
Users have reported positive experiences when combining this iron supplement with other supplements for managing nausea and enhancing overall effectiveness. Notably, one user suggested taking the iron with vitamin C to improve absorption, while also stating they did not experience any nausea or gastrointestinal issues Read Review. Several other reviewers echoed this sentiment, noting that they faced no nausea when taking the supplement, which is a common side effect associated with other iron products Read Review.
However, it is essential to consider individual responses: while many users found relief from nausea, a few did report experiencing side effects such as nausea when combining this iron with certain other supplements or food Read Review. Overall, the consensus from user reviews suggests that this iron supplement is generally well-tolerated, especially when taken alongside vitamin C for better absorption, and can potentially enhance the overall experience for those previously plagued by nausea from other iron sources.
Users report that the right dosage of iron can significantly affect the incidence of nausea, a common side effect associated with many iron supplements. Many reviewers commend the particular formulation of this iron supplement, highlighting its chelated form which appears to be gentler on the stomach. For instance, one user mentions a friend who after three months of using this product did not experience any nausea while successfully increasing her hemoglobin levels from 117 to 143 Read Review. Others, like a user who struggled with anemia, noted they experienced improved energy levels without nausea after two weeks of use Read Review.
Conversely, there were some critical reports where users did experience nausea even with the recommended dosing. It is essential to note that while many found relief from nausea, a few mentioned gastrointestinal discomfort after starting the supplementation, emphasizing that reactions may vary among individuals Read ReviewRead Review. Overall, the consensus suggests that for those who are sensitive to iron supplements, opting for a gentle formula and adhering strictly to the recommended dosage can minimize the risk of nausea and improve compliance.
9
Feeling better
62 people found this helpful
I've suffered from anaemia for years, trying many preparations that caused nausea. I like this drug for its dosage and the absence of side effects. After two weeks, I started feeling better; there’s less fatigue, and I plan to retake my tests soon. Click "yes" if you agree!
9
No discomfort
46 people found this helpful
I'm amazed by the results of this iron. After a year of low haemoglobin, I switched from painful iron supplements to this one. I felt better physically after weeks and my haemoglobin rose from 113 to 144 without any nausea or discomfort. I highly recommend it!
9
Reduced nausea
3 people found this helpful
I was advised to take this after a blood test showed low ferritin at 22. I’m now on Ferm's 1 and Iron 3, and my levels have risen to 40. This supplement is easy to take without nausea, and I believe it will continue to help if I increase the dose.
9
No side effects noted
2 people found this helpful
This iron supplements is excellent and readily absorbed by the body. I take only this one and have eliminated the usual side effects from conventional iron, such as constipation and nausea. I highly recommend it.
0
Nausea reported
6 people found this helpful
Unfortunately, this drug did not suit me due to strong side effects, specifically nausea and vomiting, even when taken with meals.
9
No nausea side effects
4 people found this helpful
I noticed an improvement in my anaemia during my period, which worsened due to heavy menstrual flow. This supplement improved my condition without the usual nausea or bowel issues that prescription medications caused. I also take it with vitamin C to aid absorption, and I plan to continue using it regularly as iron from food is hard to get.
0
Nausea experienced
8 people found this helpful
I began taking these pills to raise ferritin, but after a week, I experienced nausea, constipation, and intestinal pain. Despite having a healthy gut, I cannot recommend this drug.
9
No nausea
391 people found this helpful
Awesome working additive! I ordered this iron for a friend suffering from muscle myositis. She struggled with low haemoglobin and fatigue, trying various pharmacy drugs with nausea as a side effect. After taking this for 3 months, her haemoglobin rose from 117 to 143, and the product caused no nausea. She's feeling great at work now! I also ordered it for myself for preventative measures. Thank you to the manufacturers for such a wonderful product!
0
Severe nausea
5 people found this helpful
I have a sensitive stomach. After taking this iron supplement, which has a high absorption rate due to my low ferritin at 19, I experienced nausea, stomachache, and constipation. It did not suit me, and I am considering switching to a Japanese iron supplement.
9
Iron treatment eases nausea in pregnancy
Efficacy and Safety of Microsomal Ferric Pyrophosphate Supplement for Iron Deficiency Anemia in Pregnancy.
We conducted a study to examine the effectiveness of a specific iron supplement, emulsified microsomal ferric pyrophosphate (EMFP), in treating iron deficiency anemia among pregnant women. Our focus was not only on improving hemoglobin levels but also on alleviating related symptoms, including nausea.
Within 30 days of starting treatment with EMFP, we observed significant increases in hemoglobin levels, alongside marked improvements in serum ferritin and iron levels. As nausea is a common complaint among pregnant women, we noted a decrease in various symptoms, including nausea, breathlessness, and dizziness, which contributed to a better quality of life for the participants.
Notably, treatment compliance was remarkably high at 99.5%, indicating that the participants were committed to managing their anemia effectively. Importantly, we did not encounter any severe side effects related to the treatment, suggesting a favorable safety profile.
Overall, our findings support the idea that iron treatment can help alleviate nausea and other discomforts related to iron deficiency anemia in pregnancy, positively impacting both mother and baby.
9
FCH reduces nausea in IDA treatment
A Multicenter Single-Arm Study of Switching to Ferric Citrate Hydrate for Iron Deficiency Anemia in Patients Intolerant to Oral Iron: RIO-SWITCH.
We evaluated how switching to ferric citrate hydrate (FCH) impacts nausea in women with iron deficiency anemia (IDA) who struggled with oral iron. In a multicenter study of 30 patients, those on FCH experienced significant improvements. Nausea scores dropped from 5.7 to 1.7, and the overall incidence of nausea decreased notably. Also, 80% reported better experiences compared to previous treatments.
Overall, our findings suggest that FCH not only enhances medication adherence but also effectively reduces nausea and improves quality of life in these patients.
References
Srivastav A, Kshirsagar S, Adhav T, Ganu G, Shah A. Efficacy and Safety of Microsomal Ferric Pyrophosphate Supplement for Iron Deficiency Anemia in Pregnancy. Cureus. 2024;16:e57108. doi:10.7759/cureus.57108
Schulte J, Peterson K, Thomsen T, Lentz S, Hall M, et al. Daily versus three times weekly dosing for treatment of iron deficiency nonanemia in NCAA Division 1 female athletes. PM R. 2024;16:316. doi:10.1002/pmrj.13172
Nagao T, Takahashi K, Takahashi S, Yokomizo R, Samura O, et al. Low-dose ferric carboxymaltose vs. oral iron for improving hemoglobin levels in postpartum East Asian women: A randomized controlled trial. PLoS One. 2025;20:e0319795. doi:10.1371/journal.pone.0319795
Wada-Hiraike O, Maruyama A, Mitobe Y, Iriyama T, Mori-Uchino M, et al. A Multicenter Single-Arm Study of Switching to Ferric Citrate Hydrate for Iron Deficiency Anemia in Patients Intolerant to Oral Iron: RIO-SWITCH. Adv Ther. 2025. doi:10.1007/s12325-025-03123-9