Magnesium Citrate: Benefits, Uses & Guide

Magnesium is one of the hardest-working minerals in your body—a cofactor in more than 300 enzyme systems that regulate everything from energy production and muscle function to blood glucose control and blood pressure. Yet research suggests that between 56 and 68 percent of Americans don't get enough Magnesium from their diet alone, with older adults and teenage girls among the most likely to fall short.

Nature's Sunshine Magnesium delivers 250 mg of Magnesium per tablet, combining Magnesium oxide and Magnesium amino acid chelate in a supportive base of Licorice root, Kelp plant, Peppermint leaves, and White willow bark. Understanding how Magnesium citrate and related bioavailable Magnesium forms work can help you appreciate why this mineral deserves a place in your daily routine.

Magnesium is found throughout the bones, soft tissues, and blood. It helps metabolize various nutrients such as vitamin C, Phosphorus, potassium, and sodium. Calcium and Magnesium are nutritional partners and work best when taken together—which is why this formula includes Calcium alongside Magnesium to support their synergistic relationship.

Magnesium is required for energy production, oxidative phosphorylation, and glycolysis—processes your cells rely on every moment. It plays a pivotal role in ATP synthesis, the molecule your body uses to store and release energy. Without adequate Magnesium, even basic cellular tasks slow down.

In the musculoskeletal system, Magnesium influences the activities of osteoblasts and osteoclasts and affects concentrations of both parathyroid hormone and the active form of vitamin D—major regulators of bone homeostasis. Research suggests that people with higher levels of Magnesium may have higher bone mineral density, which supports reducing the risk of bone fractures associated with osteoporosis.

Magnesium also modulates neuronal excitability through voltage-gated Calcium antagonism and NMDA receptor blockade, supporting normal nerve function. Deficiency is associated with muscle cramps, fatigue, weakness, and cardiovascular abnormalities—early signs that often go unrecognized.

Among the most notable forms, Magnesium citrate stands out for its high solubility in water, leading to efficient absorption. Research has confirmed that Magnesium citrate had high solubility even in water (55%) and was substantially more soluble than Magnesium oxide in all states of acid secretion, making it one of the most bioavailable supplemental forms available.

Because Magnesium supports so many body systems, a wide range of people may benefit from ensuring adequate intake. Older adults are especially susceptible to Magnesium deficiency due to decreased absorption from food, increased medication use (certain diuretics can deplete Magnesium), and potential dietary restrictions. As we age, Magnesium absorption and retention can decrease, leading to deficiency and health consequences.

Active individuals may also find Magnesium citrate particularly relevant. Exercise may increase Magnesium requirements by 10–20%, and research suggests supplementation may reduce muscle soreness and support recovery. For anyone who experiences occasional muscle cramps, Magnesium's role in muscle relaxation makes it an essential nutrient to evaluate.

People concerned about bone health should note that Magnesium works synergistically with Calcium and vitamin D. Magnesium is required for vitamin D activation and Calcium metabolism, meaning that without adequate Magnesium, the benefits of those other nutrients may be diminished.

If you're unsure whether Magnesium supplementation is right for your situation, our naturopath is available for a free consultation to help you think through your individual needs.

Directions: Take 1 tablet daily with a meal.

Each bottle provides 180 tablets, giving you a full six-month supply at the recommended serving size of one tablet per day. Taking your tablet with a meal may support absorption and reduce the chance of any digestive discomfort.

Because Calcium and Magnesium are nutritional partners and work best when taken together, this formula thoughtfully includes both minerals. Vitamin D also helps the body better absorb Calcium, so ensuring adequate vitamin D status may complement this supplement. If you take any medications—especially diuretics, proton pump inhibitors, bisphosphonates, or antibiotics—consider discussing timing and potential interactions with our naturopath during a free consultation.