For long-term use, the best forms of magnesium are typically highly bioavailable and gentle on the digestive system, such as magnesium glycinate, magnesium malate, and magnesium lactate. The ideal choice ultimately depends on your specific health goals and how your body responds.
What does the Department of Health and Social Care advise? You should be able to get all the magnesium you need by eating a varied and balanced diet. If you take magnesium supplements, do not take too much as this could be harmful. Having 400mg or less a day of magnesium from supplements is unlikely to cause any harm.
Conditions that magnesium may help treat:
Acid reflux & heartburn - magnesium will reduce spasm of the lower esophageal sphincter and prevent the release of acid into the esophagus. Magnesium is also needed for stomach acid production, so deficiency can be an indicator of low stomach acid (hypochlorhydria).
Magnesium glycinate, magnesium orotate, and magnesium taurate are especially beneficial for heart health. These forms help regulate heart rhythm, support healthy blood pressure, and provide energy to heart cells.
You generally need 350 to 400 milligrams (mg) of magnesium daily during pregnancy, depending on your age (e.g., 350 mg for ages 19-30; 360 mg for 31+; 400 mg for teens), but it's crucial to talk to your doctor for personalized advice, as individual needs and food intake vary, with too much causing diarrhea and low blood pressure, while food sources like greens, nuts, and seeds are best.
For pregnancy, the best magnesium supplements are easily absorbed forms like Magnesium Glycinate (great for sleep/relaxation, gentle) or Magnesium Citrate (good absorption, helps constipation), while Magnesium Oxide is poorly absorbed. Always consult your doctor before starting any supplement, as they can advise on the right type and dosage (around 350-400mg daily), often finding it helps with leg cramps, sleep, and blood sugar, but dietary sources are key.
High doses of magnesium glycinate may cause diarrhea, gas, or stomach pain. Very high or long-term use can lead to magnesium toxicity. People with kidney or heart disease, or certain neuromuscular conditions, should avoid it without consulting a doctor.
Your body needs magnesium to function normally. Symptoms of magnesium deficiency include low appetite, nausea or vomiting, muscle spasms or tremors and abnormal heart rhythms. A blood test or urine test can be used to diagnose magnesium deficiency.
Magnesium for Energy Production and Fighting Fatigue
Magnesium can also reduce feelings of stress, which can drain energy reserves. Best Time to Take: Morning or early afternoon. Taking magnesium in the morning with breakfast or in the early afternoon helps you take advantage of its energizing effects.
If your anxiety is more physical—think racing heart, restlessness, or panic sensations—magnesium taurate may help calm both the body and mind.
Citric acid, magnesium oxide, and sodium picosulfate combination is used to cleanse the colon (bowel) in preparation for a procedure called colonoscopy. This medicine is a laxative. It works by causing you to have diarrhea to clean your colon.
Milk of magnesia (magnesium hydroxide) is a popular OTC acid reflux treatment. Dosage recommendations for adults are 5–15 milliliters (ml) at a time, which can be repeated up to 4 times daily as needed. The dose should not exceed more than 60 ml in any 24 hours.
For fast acid reflux relief, try over-the-counter antacids (like Tums, Rolaids) for immediate neutralization or baking soda in water for quick buffering, but also consider lifestyle fixes like staying upright and elevating your head to sleep, or natural options like ginger tea or a banana, though these provide temporary relief; for persistent issues, stronger acid reducers (H2 blockers or PPIs) may be needed from a doctor, notes Cleveland Clinic and Johns Hopkins Medicine.
No. There are supplements that do not require breaks, such as magnesium, which can be taken regularly without causing tolerance or significant side effects.
Bananas are the richest fruit in magnesium. If eaten dried, its magnesium content is higher. More generally, dried fruits such as figs, dates and apricots are an important source of magnesium. Recipe idea: Try a banana-spinach smoothie.
Health Risks from Excessive Magnesium
Although the risk of acquiring too much magnesium from food is low among healthy people, high doses of magnesium from dietary supplements or medications can cause diarrhea, nausea, and abdominal cramping.
Magnesium and Zinc
Researchers have found that high doses of zinc supplements can decrease magnesium absorption and affect magnesium balance in the body, regardless of calcium intake.
1. Magnesium glycinate: Best absorbed form, bonded to glycine amino acids, gentle on the stomach, ideal for muscle cramps and sleep support, and considered the safest form with the least side effects.
Individuals with nerve or muscle conditions – People with conditions like myasthenia gravis should avoid taking magnesium, as it can interfere with the function of some nerve and muscle-related medications.
Magnesium deficiency
Magnesium-Rich Foods
For women especially, magnesium is important because it plays a role in hundreds of different functions involved in hormone regulation. Thankfully, increasing dietary magnesium intake and taking a daily supplement can reverse symptoms and optimize blood sugar levels, mood, sleep and menstrual cycles.
Taking magnesium supplements such as magnesium glycinate can cause side effects, including nausea and abdominal pain. In larger quantities, it can also cause diarrhea and more severe side effects, such as an irregular heartbeat, extreme hypotension, and cardiac arrest.
You should avoid taking magnesium glycinate with certain antibiotics (tetracyclines, quinolones), bisphosphonates, diuretics, and proton pump inhibitors (PPIs) due to absorption issues or mineral imbalance; also, separate it from high-dose calcium and zinc supplements, and high intake of alcohol/caffeine, but always consult your doctor for personalized advice, especially if on prescription meds.
Signs of more severe magnesium toxicity (when your magnesium is too high) may include: