Buenos Aires, December 15, 2025 (NA) -- Harvard Health emphasizes that in the vast majority of cases, a balanced diet is sufficient to meet daily magnesium needs. Therefore, supplementation only proves useful in people with a diagnosed deficiency or in pregnant women with preeclampsia or eclampsia. Consequently, it questions the conclusions of preliminary studies on its use for migraines, insomnia, anxiety, or diabetes, and does not recommend it in general: each case must be evaluated individually, without assuming that 'more magnesium' is better, the report accessed by Noticias Argentinas agency concludes. It presents cases of people with Crohn's disease who have absorption problems and may require supplements under medical supervision. Harvard points out that deficiency is more common in adults over 70, people with gastrointestinal disorders, malnutrition, or excessive alcohol consumption. And those taking certain medications may also be affected. The magnesium boom Magnesium has become one of the most consumed supplements of the moment, and it is found in foods such as: spinach, nuts, legumes, pumpkin seeds, whole grains, bananas, soy milk, and dark chocolate. A diet combining spinach, almonds, and a banana can cover more than half of the daily recommendation for an adult woman. Hence the prestigious North American university insists that before supplementing, one should consult a doctor or nutritionist, since the risk is side effects like diarrhea and nausea, as well as interactions with medications. Magnesium became popular through word of mouth and self-help posts on social networks, establishing itself as one of the most consumed supplements. While it is present in hundreds of products that promise to improve sleep, reduce anxiety, or relieve muscle pain, this essential mineral also participates in more than 300 biological processes. Therefore, in the vast majority of cases, a balanced diet is sufficient to cover daily needs. Its presence is key for the cardiovascular system, nerve and muscle function, bone health, and blood sugar regulation. Daily recommendations are 320 mg for women and 420 mg for men, values that are usually easily obtained through a varied diet. Magnesium deficiency, hypomagnesemia, is not common. When it does occur, it causes symptoms such as fatigue, nausea, or loss of appetite, and in severe cases, cramps or arrhythmias.
