Klaire Labs Magnesium Glycinate Complex 100mg Guide

Magnesium Complex is a dual-form Magnesium supplement that combines Magnesium citrate and Magnesium malate — two organic, highly soluble forms of this essential mineral — to support your cardiovascular system, brain, kidneys, and bones. Each serving of two capsules delivers 184 mg of elemental Magnesium, and the bottle provides 100 capsules.

Magnesium is the fourth most abundant cation in the human body and serves as a cofactor in more than 300 enzyme systems that regulate everything from energy production and protein synthesis to muscle and nerve function, blood glucose control, and blood pressure regulation. It is indispensable for ATP synthesis — the fundamental currency of cellular energy — and plays a pivotal role in bone formation, cardiac electrophysiology, and neuronal signaling.

Despite its importance, an estimated 56–68% of Americans do not obtain enough Magnesium through their diet to meet the Recommended Dietary Allowance (RDA). Older adults, individuals with gastrointestinal disorders, those with type 2 diabetes, and people taking certain medications such as diuretics or proton pump inhibitors are at especially elevated risk for deficiency. Early signs of low Magnesium include fatigue, muscle cramps, and weakness; more severe deficiency can lead to numbness, abnormal heart rhythms, and disrupted mineral balance.

By choosing organic forms like citrate and malate — which are generally more soluble and have higher bioavailability than inorganic forms such as Magnesium oxide — this Magnesium Complex is formulated for optimum effectiveness. Magnesium citrate, for example, demonstrates high solubility even in water (55%) and is substantially more soluble than Magnesium oxide in all states of acid secretion. If you have questions about whether Magnesium supplementation is right for your individual needs, our naturopath is available for a free consultation.

This formula pairs two organic Magnesium salts — Magnesium citrate and Magnesium malate — each chelated to an organic acid. Organic forms of Magnesium are generally more soluble and have higher bioavailability compared to inorganic alternatives, meaning your body can absorb and use the Magnesium more efficiently.

Magnesium citrate is one of the most bioavailable forms available. Research has shown that it has high solubility in water, leading to efficient absorption. This high solubility is maintained across different levels of stomach acid secretion, making it a reliable choice for a broad range of individuals.

Magnesium malate is another organic form that involves Magnesium bound to malic acid. Like citrate, it benefits from the generally superior solubility and absorption profile that organic Magnesium compounds share. Together, these two forms provide the highly soluble Magnesium that the body needs to carry out hundreds of critical enzymatic reactions.

Magnesium's biological activity resides in the Mg²⁺ ion itself. Once absorbed, it functions as a cofactor for energy-producing enzymes, participates in ATP synthesis, activates the Na/K-ATPase pump for proper ion transport, modulates NMDA receptor activity in neurons, and influences osteoblast and osteoclast behavior in bones. This broad range of mechanisms is what makes adequate Magnesium so important for heart, brain, kidney, bone, and nervous system health.

This Magnesium Complex is formulated to support heart health, nervous system health, and bone density — making it relevant for a broad range of adults. Because it focuses on the cardiovascular system, brain, heart, and kidneys, it may be especially useful for people looking to support these core body systems.

Adults concerned about cardiovascular health: Research suggests that higher Magnesium levels are inversely associated with risks of coronary heart disease, stroke, and total cardiovascular disease. The 2022 FDA-approved qualified health claim states that consuming diets with adequate Magnesium may reduce the risk of high blood pressure, though the FDA notes the evidence is inconsistent and inconclusive.

Those focused on bone health: Magnesium is involved in bone formation and influences the activities of osteoblasts and osteoclasts while affecting concentrations of vitamin D and parathyroid hormone. Observational data have linked higher Magnesium intake to greater bone mineral density, particularly in women.

Older adults: As we age, Magnesium absorption and retention can decrease. Men older than 70 and teenage girls are identified as most likely to have low intakes. Older adults are more susceptible to deficiency due to decreased absorption from food, increased medication use (diuretics can deplete Magnesium), and potential dietary restrictions.

Individuals on certain medications: People taking loop or thiazide diuretics, proton pump inhibitors, or other medications that deplete Magnesium may benefit from supplementation. If you take any prescription medication, we encourage you to speak with your healthcare provider or schedule a free consultation with our naturopath to discuss potential interactions.

Take 2 capsules twice daily with a meal. Each serving of 2 capsules provides 184 mg of Magnesium from both Magnesium citrate and Magnesium malate.

The Recommended Dietary Allowance (RDA) for Magnesium is 400–420 mg/day for adult men and 310–320 mg/day for adult women. During pregnancy, requirements increase to about 350–360 mg daily. Taking this supplement as directed provides a meaningful contribution toward meeting your daily Magnesium needs.

It is worth noting that Magnesium can interact with certain medications. Bisphosphonates and Magnesium-rich supplements should be separated by at least 2 hours. Tetracycline and quinolone antibiotics should be taken at least 2 hours before or 4–6 hours after Magnesium. Magnesium may also reduce the absorption of gabapentin by approximately 20%. If you take any medications or have kidney concerns, consult your healthcare provider before starting supplementation.

Magnesium supplements are generally well tolerated, though they can sometimes cause softening of stool, nausea, or cramping — side effects that are more common at higher doses and with inorganic forms. The organic citrate and malate forms in this complex are designed for high solubility and tend to be gentler on the digestive system.

Hypermagnesemia (excess Magnesium) from supplemental intake is rare in individuals with normal kidney function, because the kidneys efficiently excrete excess Magnesium. However, risk is substantially elevated in those with impaired renal function.

Several medication categories warrant attention. Loop and thiazide diuretics can deplete Magnesium through increased urinary excretion. Proton pump inhibitors taken for prolonged periods (typically more than a year) can cause hypomagnesemia. The FDA advises healthcare professionals to consider measuring serum Magnesium levels before initiating long-term PPI treatment. Magnesium can also form insoluble complexes with certain antibiotics, so proper dosing separation is important.

If you have questions about whether this supplement is appropriate for your situation, our naturopath offers free consultations to help you make an informed decision.