Interest in magnesium supplements surged in 2025, with Google searches for "which magnesium is best for sleep" and "which magnesium makes you poop more" more than doubling, driven by claims of benefits ranging from improved sleep to constipation relief. Magnesium, an abundant mineral vital for over 300 biochemical reactions in the body, including protein synthesis, nerve function, and blood sugar regulation, is now a key ingredient in popular wellness concoctions.

Magnesium plays a crucial role in maintaining a healthy cardiovascular system, supporting bone health, and facilitating the transport of calcium and potassium across cell membranes, which is essential for muscle contractions and normal heart rhythms. "Magnesium is essential for numerous bodily functions," said Dr. Emily Carter, a registered dietitian at the National Institutes of Health. "It's not just about sleep or bowel movements; it's fundamental to overall health."

The increased interest in magnesium supplements reflects a broader trend of individuals seeking natural remedies for common ailments. Many are turning to magnesium glycinate before bed as an alternative to melatonin, hoping to alleviate insomnia, constipation, and even anxiety. While magnesium can be obtained through foods like legumes, leafy vegetables, and whole grains, many individuals are opting for fortified foods and dietary supplements to ensure adequate intake.

However, experts caution against self-treating with high doses of magnesium without consulting a healthcare professional. "While magnesium is generally safe, excessive intake can lead to side effects such as diarrhea, nausea, and abdominal cramping," warned Dr. Carter. "It's important to determine if a deficiency exists and to address it under medical supervision."

The recommended daily allowance of magnesium varies depending on age and sex, but generally ranges from 310 to 420 milligrams for adults. Individuals with certain medical conditions, such as kidney disease, should exercise caution when taking magnesium supplements, as their bodies may not be able to process the mineral effectively.

The current trend highlights the importance of informed decision-making when it comes to dietary supplements. While magnesium can offer potential benefits, it is crucial to consult with a healthcare provider to determine the appropriate dosage and form, and to rule out any underlying medical conditions that may be contributing to symptoms. Further research is needed to fully understand the long-term effects of magnesium supplementation and to establish clear guidelines for its use.