Magnesium Complex | Heart, Nerve & Muscle Support

Magnesium Complex from Nature's Sunshine brings together two organic forms of Magnesium — Magnesium citrate and Magnesium malate — in a single, highly soluble supplement designed to support your cardiovascular system, brain, kidneys, and muscles. Two capsules deliver 184 mg of Magnesium, a mineral that serves as a cofactor in more than 300 enzyme systems regulating everything from energy production and nerve signaling to blood pressure and muscle contraction.

Despite Magnesium's central role in human health, an estimated 56–68 % of Americans do not obtain enough of it through diet alone. Deficiency is especially common in older adults, people taking certain medications such as diuretics or proton-pump inhibitors, and those with type 2 diabetes or gastrointestinal disorders. Early signs of low Magnesium include fatigue, weakness, loss of appetite, and muscle cramps — symptoms that can worsen into numbness, tingling, abnormal heart rhythms, and personality changes if left unaddressed.

Magnesium Complex addresses this gap with two well-absorbed organic forms rather than the less-soluble inorganic salts found in many basic supplements. If you're unsure whether a Magnesium supplement is right for your situation, our naturopath is available for a free consultation to help you think it through.

Not all Magnesium supplements are created equal. Organic forms — where the mineral is chelated to organic molecules like citric acid or malic acid — are generally more soluble and have higher bioavailability than inorganic forms such as Magnesium oxide. Research shows that Magnesium citrate has high solubility even in water (55 %) and is substantially more soluble than Magnesium oxide across all states of acid secretion.

By combining Magnesium citrate and Magnesium malate, Magnesium Complex leverages two complementary organic carriers. Both belong to the category of organic Magnesium salts that the body can absorb more efficiently. This dual-form approach is part of what makes the product highly soluble, helping ensure the Magnesium you take actually reaches the tissues that need it — your heart, brain, kidneys, nerves, and muscles.

Magnesium Complex may be a good fit for a wide range of adults, but certain groups may find it especially relevant:

• Adults concerned about heart health. Research suggests that higher dietary and circulating Magnesium levels are inversely associated with risks of coronary heart disease, stroke, and total cardiovascular disease. Magnesium is also a well-established cofactor in cardiac electrophysiology and may support healthy heart rhythm.
• People experiencing occasional muscle cramps or tension. Magnesium deficiency impairs muscle relaxation — muscles contract normally but may struggle to fully release when levels are low. Maintaining adequate Magnesium intake supports normal muscle function.
• Those seeking nervous system support. Magnesium modulates neuronal excitability and neuromuscular transmission. Deficiency is associated with a range of neurological symptoms, from migraines to mood imbalances.
• Older adults. As we age, Magnesium absorption and retention tend to decrease. Older adults are more susceptible to deficiency due to decreased absorption from food, increased medication use (some diuretics can deplete Magnesium), and potential dietary restrictions.
• People on long-term PPI or diuretic medications. Loop and thiazide diuretics deplete Magnesium through increased urinary excretion, and prolonged PPI use can cause hypomagnesemia.

If you're not sure whether a Magnesium supplement fits your health goals, our naturopath is happy to talk it through with you — the consultation is free and comes with no obligation.

Take 2 capsules twice daily with a meal. Each bottle contains 100 capsules.

Taking Magnesium with food can support comfortable absorption. Because Magnesium may interact with certain medications — including bisphosphonates, tetracycline and quinolone antibiotics, and gabapentin — it's wise to separate your doses. The antibiotic should be taken at least 2 hours before or 4–6 hours after Magnesium, and bisphosphonates should be separated by at least 2 hours.

High-dose supplemental Magnesium can occasionally cause stomach-related side effects such as softened stool, nausea, or cramping in some people. These effects tend to be more common with inorganic forms like Magnesium oxide; the organic citrate and malate forms in this product are generally better tolerated. Individuals with impaired kidney function should consult a healthcare professional before supplementing, as the kidneys are responsible for excreting excess Magnesium.