Overview

SCIENTIFIC SCORE
Questionable
Based on 22 Researches
6.8
USERS' SCORE
Excellent
Based on 14 Reviews
9.1

Top Medical Research Studies

9
We explored the effectiveness of magnesium oxide (MgO) as a treatment for chronic constipation using a robust randomized, placebo-controlled trial. Over 28 days, participants received MgO, senna, or a placebo.

Both MgO and senna significantly improved bowel movement frequency and quality of life compared to placebo. About 68.3% of those using MgO reported symptom improvement, showcasing its potential as an effective osmotic agent alongside a stimulant laxative.

Importantly, there were no severe treatment-related side effects reported during the trial.
Read More
4
Effectiveness of magnesium on constipation
We explored how changing the frequency of magnesium oxide (MgO) doses influences its effectiveness in relieving constipation. In this study, we looked at 11 patients who had been regularly using MgO to manage their bowel movements and decided to reduce their daily dose frequency over two weeks.

Initially, patients were taking magnesium three times a day, but we reduced this to either two or one dose per day while keeping the total amount the same. We found that the average number of bowel movements dropped from 7.6 to 6.6 in this period. However, this change wasn't statistically significant, indicating that it may not be clinically meaningful.

Additionally, we measured stool consistency using the Bristol Stool Form Scale and noted no significant difference before and after the dosage adjustment. Our findings suggest that reducing the number of doses does not impact the laxative effect of magnesium oxide. This implies that patients can comfortably manage their magnesium intake without sacrificing effectiveness.
Read More
9
Magnesium effectively aids constipation
We investigated how magnesium supplements affect chronic constipation through a systematic review of randomized controlled trials. The analysis included eight studies with a total of 787 participants. We focused on magnesium oxide among other treatment options and assessed its effectiveness in increasing stool frequency and improving consistency.

The findings were quite promising for magnesium oxide. Our results showed that participants who took magnesium experienced a boost in bowel movements, with an average increase of about 3.7 additional movements per week. This improvement in stool consistency was also noteworthy, scoring higher on the Bristol stool chart.

While other supplements like senna and kiwifruit were explored, they didn't significantly enhance symptoms of constipation in this analysis. Therefore, we suggest that magnesium oxide stands out in this study as a worthwhile option for managing chronic constipation. But it’s essential to remember that further research could help confirm these findings and explore the effects of whole food alternatives.
Read More

Most Useful Reviews

9.5
Relief from constipation
OMG! It works! I've suffered from constipation for years and tried everything with minimal success. After discovering CALM, I noticed improvements in less than a week. My mood and sleep quality have improved, as has my constipation, enabling me to go a couple of times a day! I’m amazed at the difference it's made and encourage anyone with similar struggles to give it a try.
Read More
10
Miracle mineral revealed
Magnesium CITRATE is the only type the body can fully assimilate. It's a miracle mineral vital to good health, aiding everything from restful sleep to alleviating constipation. Daily use shows remarkable results, especially when taken every morning before breakfast. Magnesium's benefits should be more widely promoted, as its deficiency can lead to various health issues, including constipation. With this product, I’ve had no more constipation, and its pleasant taste makes it easy to dissolve in warm water.
Read More
10
Cured my constipation
My constipation is cured! I suffered terribly from constipation and tried various remedies with little success. A friend suggested several products, including digestive enzymes and magnesium citrate. After doing some research, I was astonished to learn about magnesium deficiency's prevalence. I’ve been taking two teaspoons of magnesium citrate in warm water before bed each night, and I'm now going regularly—sometimes even two to three times a day! I've also noticed my headaches and insomnia have improved significantly. I'm hopeful my experience will assist others struggling with constipation as well.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 22 Researches
6.8
  • All Researches
We explored the relationship between magnesium supplementation, defecation, and cognitive performance in elite triathletes. In a carefully designed crossover trial, participants undertook cognitive tests after taking magnesium oxide and after defecation. This study highlighted an interesting potential connection between the state of our digestive system and cognitive abilities.

We found that after magnesium-induced defecation, participants completed cognitive tasks more quickly compared to when they had not defecated. Specifically, the average completion time for the cognitive test dropped significantly after defecation when magnesium was involved. While this suggests that magnesium can aid in relieving constipation, its role in improving overall cognitive function during athletics is also noteworthy.

Although we observed an increase in cognitive performance following magnesium supplementation, it’s important to note that no significant changes in blood flow or oxygen levels were detected in the brain during the test. Instead, we noted decreased oxygen levels in the digestive region, hinting at an increased demand for energy there.

Overall, our findings suggest a potential new avenue for enhancing cognitive function in athletes through magnesium to improve constipation. However, the direct effects of magnesium solely on constipation require further investigation.
Read More
9
Magnesium effectively aids constipation
We investigated how magnesium supplements affect chronic constipation through a systematic review of randomized controlled trials. The analysis included eight studies with a total of 787 participants. We focused on magnesium oxide among other treatment options and assessed its effectiveness in increasing stool frequency and improving consistency.

The findings were quite promising for magnesium oxide. Our results showed that participants who took magnesium experienced a boost in bowel movements, with an average increase of about 3.7 additional movements per week. This improvement in stool consistency was also noteworthy, scoring higher on the Bristol stool chart.

While other supplements like senna and kiwifruit were explored, they didn't significantly enhance symptoms of constipation in this analysis. Therefore, we suggest that magnesium oxide stands out in this study as a worthwhile option for managing chronic constipation. But it’s essential to remember that further research could help confirm these findings and explore the effects of whole food alternatives.
Read More
9
Magnesium aids cancer patient care
We conducted a randomized, double-blind trial to assess how magnesium-L-threonate, a new compound, might help relieve constipation while enhancing the pain relief effects of opioids in patients with advanced cancer. During the study, patients receiving this treatment were compared with those taking a placebo, allowing us to clearly see the differences in outcomes.

As the trial progressed, we noticed significant improvements in the group taking magnesium-L-threonate. Notably, this treatment not only helped in managing pain more effectively but also significantly alleviated opioid-induced constipation—a common side effect of opioid use. The data indicated that patients on magnesium-L-threonate required lower doses of opioids for pain management while enjoying better gastrointestinal comfort.

Overall, our findings suggest that magnesium-L-threonate is a promising option in the palliative care landscape for cancer patients, addressing both pain relief and constipation, which can greatly enhance their quality of life.
Read More
9
Magnesium may alleviate constipation
We examined the effectiveness of oral magnesium sulfate in treating chronic constipation for children with spastic cerebral palsy. In our study, 100 children received either magnesium sulfate or a placebo for one month.

After this period, we noticed significant improvements in bowel movement frequency and stool consistency in the magnesium group, while the placebo group showed minimal change.

This treatment not only alleviated constipation but also reduced the distress of painful bowel movements for both children and their mothers.
Read More
9
We explored the effectiveness of magnesium oxide (MgO) as a treatment for chronic constipation using a robust randomized, placebo-controlled trial. Over 28 days, participants received MgO, senna, or a placebo.

Both MgO and senna significantly improved bowel movement frequency and quality of life compared to placebo. About 68.3% of those using MgO reported symptom improvement, showcasing its potential as an effective osmotic agent alongside a stimulant laxative.

Importantly, there were no severe treatment-related side effects reported during the trial.
Read More

User Reviews

USERS' SCORE
Excellent
Based on 14 Reviews
9.1
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Relief from constipation
OMG! It works! I've suffered from constipation for years and tried everything with minimal success. After discovering CALM, I noticed improvements in less than a week. My mood and sleep quality have improved, as has my constipation, enabling me to go a couple of times a day! I’m amazed at the difference it's made and encourage anyone with similar struggles to give it a try.
Read More
10
Miracle mineral revealed
Magnesium CITRATE is the only type the body can fully assimilate. It's a miracle mineral vital to good health, aiding everything from restful sleep to alleviating constipation. Daily use shows remarkable results, especially when taken every morning before breakfast. Magnesium's benefits should be more widely promoted, as its deficiency can lead to various health issues, including constipation. With this product, I’ve had no more constipation, and its pleasant taste makes it easy to dissolve in warm water.
Read More
10
Cured my constipation
My constipation is cured! I suffered terribly from constipation and tried various remedies with little success. A friend suggested several products, including digestive enzymes and magnesium citrate. After doing some research, I was astonished to learn about magnesium deficiency's prevalence. I’ve been taking two teaspoons of magnesium citrate in warm water before bed each night, and I'm now going regularly—sometimes even two to three times a day! I've also noticed my headaches and insomnia have improved significantly. I'm hopeful my experience will assist others struggling with constipation as well.
Read More
9.5
Aids constipation
Great for encopresis! My nearly four-year-old autistic child was diagnosed with encopresis due to withholding and was chronically constipated. After trying Miralax, which only made things worse, I turned to Calm, recommended by other parents. Although we haven’t completed a full clean-out yet, he's started to go regularly without accidents. The daily dose of Calm mixed with Exlax has relieved his constipation and visibly improved his mood. I’m also noticing his hair has begun to grow thicker, which seems to be a side effect of the magnesium. I’ve started taking Calm for my own thinning hair and while not completely addressing my constipation yet, I'm much less moody and sleeping better. This stuff is pure magic!
Read More
9.5
Natural remedy suggestion
Great product in the wrong container. Undoubtedly, the purchase and use of stool softeners would diminish if everyone, including physicians, considered magnesium. An insufficient amount of magnesium is a primary cause of constipation and hemorrhoids, yet most physicians unwittingly recommend stool softeners. By taking your measure of Natural CALM daily, your constipation will quickly subside. It's an easy-to-assimilate powder that, when mixed with water, becomes effervescent. More effective than tablet form, Natural CALM is the best-selling ionic magnesium supplement found in health food stores. Directions are unclear regarding the amount of water to use, which can be confusing. Consistent results require accurate measurements to manage constipation effectively.
Read More

Frequently Asked Questions

No FAQs are available for this product and symptom.

References

  1. Wei CC, Harris MB, Ye M, Nicholls A, Alkhatib A, et al. Defecation after magnesium supplementation enhances cognitive performance in triathletes. Sports Med Health Sci. 2025;7:102. doi:10.1016/j.smhs.2024.04.001
  2. Watanabe N, Itano A, Ando M, Kawahara M. Effect of reduced daily magnesium oxide doses on laxative effect: a single-center retrospective study. J Rural Med. 2024;19:192. doi:10.2185/jrm.2023-038
  3. Amjadi Suraki S, Bagheri-Nesami M, Nabati M, Moosazadeh M, Habibi E. Flaxseed powder and magnesium hydroxide syrup on the intestinal function of patients with acute myocardial infarction in intensive care units. Caspian J Intern Med. 2024;15:234. doi:10.22088/cjim.15.2.234
  4. Nagamine T. Effect of magnesium oxide with probiotics on bowel movements in elderly orthopedic patients with chronic constipation: a retrospective chart review. Biosci Microbiota Food Health. 2024;43:1. doi:10.12938/bmfh.2023-040
  5. Park CW, Lee J, Hong YH, Kim YS, Suh HJ, et al. Coadministration of Lactulose with Probiotics Ameliorates Loperamide-Induced Constipation in Mice. Prev Nutr Food Sci. 2023;28:427. doi:10.3746/pnf.2023.28.4.427
  6. Ishii H, Sawada R, Shiomi M, Shibuya K. A case-control study showing low creatinine clearance and high magnesium intake as risk factors for hypermagnesemia in older individuals. Magnes Res. 2023;36:23. doi:10.1684/mrh.2023.0513
  7. Sasaki H, Hayashi K, Imamura M, Hirota Y, Hosoki H, et al. Combined resistant dextrin and low-dose Mg oxide administration increases short-chain fatty acid and lactic acid production by gut microbiota. J Nutr Biochem. 2023;120:109420. doi:10.1016/j.jnutbio.2023.109420
  8. van der Schoot A, Creedon A, Whelan K, Dimidi E. The effect of food, vitamin, or mineral supplements on chronic constipation in adults: A systematic review and meta-analysis of randomized controlled trials. Neurogastroenterol Motil. 2023;35:e14613. doi:10.1111/nmo.14613
  9. Suzuki S, Obara T, Ishikawa T, Noda A, Matsuzaki F, et al. No association between major congenital malformations and exposure to Kampo medicines containing rhubarb rhizome: A Japanese database study. Front Pharmacol. 2023;14:1107494. doi:10.3389/fphar.2023.1107494
  10. Kistemaker KRJ, de Graeff A, Crul M, de Klerk G, van de Ven PM, et al. Magnesium hydroxide versus macrogol/electrolytes in the prevention of opioid-induced constipation in incurable cancer patients: study protocol for an open-label, randomized controlled trial (the OMAMA study). BMC Palliat Care. 2023;22:22. doi:10.1186/s12904-023-01143-2
  11. Wu S, Jin T, Ma B, Ji Y, Huang X, et al. Oral application of magnesium-L-threonate enhances analgesia and reduces the dosage of opioids needed in advanced cancer patients-A randomized, double-blind, placebo-controlled trial. Cancer Med. 2023;12:4343. doi:10.1002/cam4.4922
  12. Maezawa M, Inoue M, Satake R, Wakabayashi W, Oura K, et al. Effect of acid suppressant medications on the laxative action of magnesium preparations in patients with opioid-induced constipation: A pharmacovigilance analysis of the FDA Adverse Event Reporting System. Pharmazie. 2023;78:245. doi:10.1691/ph.2023.3624
  13. Takemura M, Niki K, Miyaguchi S, Ueda M. Naldemedine-laxative combination: retrospective inpatient study. BMJ Support Palliat Care. 2024;13:e816. doi:10.1136/spcare-2022-003685
  14. Worona-Dibner L, Vázquez-Frias R, Valdez-Chávez L, Verdiguel-Oyola M. Efficacy, safety, and acceptability of polyethylene glycol 3350 without electrolytes vs magnesium hydroxide in functional constipation in children from six months to eighteen years of age: A controlled clinical trial. Rev Gastroenterol Mex (Engl Ed). 2023;88:107. doi:10.1016/j.rgmxen.2021.12.005
  15. de Campos GRC, Sandy NS, Lomazi EA, Bellomo-Brandao MA. Management of children with functional constipation referred to tertiary care. J Pediatr (Rio J). 2022;98:289. doi:10.1016/j.jped.2021.06.006
  16. Rao SSC, Brenner DM. Efficacy and Safety of Over-the-Counter Therapies for Chronic Constipation: An Updated Systematic Review. Am J Gastroenterol. 2021;116:1156. doi:10.14309/ajg.0000000000001222
  17. Hassanein SMA, Deifallah SM, Bastawy HA. Efficacy of oral magnesium therapy in the treatment of chronic constipation in spastic cerebral palsy children: a randomized controlled trial. World J Pediatr. 2021;17:92. doi:10.1007/s12519-020-00401-0
  18. Morishita D, Tomita T, Mori S, Kimura T, Oshima T, et al. Senna Versus Magnesium Oxide for the Treatment of Chronic Constipation: A Randomized, Placebo-Controlled Trial. Am J Gastroenterol. 2021;116:152. doi:10.14309/ajg.0000000000000942
  19. Kubota M, Ito K, Tomimoto K, Kanazaki M, Tsukiyama K, et al. Lactobacillus reuteri DSM 17938 and Magnesium Oxide in Children with Functional Chronic Constipation: A Double-Blind and Randomized Clinical Trial. Nutrients. 2020;12. doi:10.3390/nu12010225
  20. Ohkubo H, Yoshihara T, Misawa N, Ashikari K, Fuyuki A, et al. Relationship between Stool Form and Quality of Life in Patients with Chronic Constipation: An Internet Questionnaire Survey. Digestion. 2021;102:147. doi:10.1159/000502815
  21. Dupont C, Constant F, Imbert A, Hébert G, Zourabichvili O, et al. Time to treatment response of a magnesium- and sulphate-rich natural mineral water in functional constipation. Nutrition. 2019;65:167. doi:10.1016/j.nut.2019.02.018
  22. Tsuji S, Horiuchi A, Tamaki M, Ichise Y, Kajiyama M, et al. Effectiveness and safety of a new regimen of polyethylene glycol plus ascorbic acid for same-day bowel cleansing in constipated patients. Acta Gastroenterol Belg. 2018;81:485.
image