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Pure Encapsulations Magnesium Glycinate Guide

Explore our in-depth guide on pure encapsulations Magnesium glycinate — learn about Magnesium's role in nervous system health, bone density, and muscle support.

Overview

What Is Pure Encapsulations Magnesium Glycinate and Why Does It Matter?

If you've been researching pure encapsulations Magnesium glycinate, you're likely looking for a well-absorbed form of Magnesium that supports nervous system health, bone density, and muscle comfort. Magnesium is the fourth most abundant cation in the human body and a critical cofactor in more than 300 enzyme systems that regulate energy metabolism, neuromuscular function, cardiovascular health, bone integrity, and psychological well-being.

Nature's Sunshine Magnesium provides 250 mg of Magnesium per tablet using Magnesium oxide and Magnesium amino acid chelate in a supportive base of Licorice root, Kelp plant, Peppermint leaves, and White willow bark. Calcium and Magnesium are nutritional partners and work best when taken together, which is why this formula also includes 40 mg of Calcium and 30 mg of Phosphorus.

Emerging evidence confirms that nearly two-thirds of the population in the western world is not achieving the recommended daily allowance for Magnesium — a deficiency problem contributing to various health conditions. Early signs of Magnesium deficiency include loss of appetite, nausea, fatigue, and weakness. As deficiency worsens, numbness, tingling, muscle cramps, and abnormal heart rhythms can occur.

If you're unsure whether a Magnesium supplement is right for your needs, our naturopath is available for a free consultation to help you decide.

How It Works

Why Magnesium Is Essential for Your Body

Magnesium is used by several hundred enzymes in their daily tasks and is found in the bones, soft tissues, and blood. It helps metabolize various nutrients such as vitamin C, Phosphorus, potassium, and sodium. At the cellular level, Magnesium plays a pivotal role in ATP synthesis — the molecule your body uses to store and release energy — making it indispensable for energy production across virtually all tissues.

In the nervous system, Magnesium modulates neuronal excitability through voltage-gated Calcium antagonism and N-methyl-D-aspartate (NMDA) receptor blockade, which may help support healthy nerve signaling and calm muscle tension. In bone, Magnesium is involved in bone formation and influences the activities of osteoblasts and osteoclasts, while also affecting concentrations of both parathyroid hormone and the active form of vitamin D — major regulators of bone homeostasis.

This formula also includes a base of botanicals that have been used traditionally for centuries. Licorice root has been valued for over 4,000 years across Egyptian, Greek, Chinese, and Indian cultures. Peppermint has been used as a remedy for indigestion since ancient Egyptian times. White willow bark has a history stretching back more than 3,500 years, when Sumerians and Egyptians used it for comfort and well-being.

Qué contiene

Key Ingredients

Magnesium — 250 mg
Magnesium is a cofactor in more than 300 enzyme systems that regulate protein synthesis, muscle and nerve function, blood glucose control, and blood pressure regulation. Research suggests that Magnesium is involved in bone formation and influences the activities of osteoblasts and osteoclasts, with observational data from large cohort studies finding higher Magnesium intake associated with 2–3% greater bone density in women. As a natural NMDA receptor antagonist, Magnesium plays a critical role in nervous system function by modulating synaptic transmission and neuronal excitability. Deficiency is associated with increased risk of neurological symptoms, and studies suggest supplementation supports normal nerve function. Magnesium also regulates muscle contraction via intracellular Calcium transport; a 2024 systematic review found supplementation may reduce muscle soreness, improve performance and recovery, and exert a protective effect on muscle damage in physically active individuals. Cochrane reviews of multiple RCTs note that Magnesium deficiency impairs muscle relaxation, as muscles contract normally but may struggle to fully release when levels are low. Additionally, meta-analyses of 17 RCTs showed Magnesium supplementation significantly decreased serum C-reactive protein (CRP) and increased nitric oxide (NO) levels, suggesting a role in supporting a healthy inflammatory response.
Calcium — 40 mg
Calcium is the most abundant mineral in the human body, with more than 99% stored in bone as hydroxyapatite. Research suggests that Calcium supplementation significantly improves bone mineral density (BMD), particularly in people under 35 building peak bone mass. Combined with vitamin D, it may attenuate bone loss in older adults. Calcium is also essential for both skeletal and smooth muscle contraction, operating via calmodulin-dependent activation of myosin light-chain kinase pathways. Low Calcium intake (hypocalcemia) is recognized in standard medical references as a cause of muscle cramps, tetany, and spasms; correction of low Calcium levels may help resolve neuromuscular symptoms including cramping. Calcium ions also play a key role in the nervous system as part of the neurotransmission mechanism, stabilizing membrane potential and controlling the excitability of neurons. Calcium and Magnesium are nutritional partners and work best when taken together.
Phosphorus — 30 mg
Phosphorus is the second most abundant mineral in the human body, with approximately 85% residing in bones and teeth forming hydroxyapatite alongside Calcium. Adequate dietary Phosphorus is universally recognized as essential for bone mineralization and maintaining bone mineral density by major health bodies including the NIH. Phosphorus helps activate enzymes and keeps blood pH within a normal range, and it regulates the normal function of nerves and muscles, including the heart. As a key component of ATP — the body's major source of energy — Phosphorus is required for post-exercise restoration of ATP and phosphocreatine in skeletal muscle. Phospholipids, which contain Phosphorus as an essential structural element, are the primary components of neuronal cell membranes and are required for synaptic neurotransmission, supporting overall nervous system function.
Kelp leaf and stem
Kelp is a brown alga that has been used in traditional medicine for centuries across East Asian, Pacific Northwest Indigenous, and European cultures. It is a rich source of vitamins and minerals, including dietary iodine — an essential trace element required for the biosynthesis of thyroid hormones. Kelp contains bioactive polysaccharides including fucoidan and laminarin. The Japanese and Chinese cultures used Kelp to support various aspects of wellness as long ago as 300 BC, and it has traditionally been valued for its broad mineral content.
Licorice root
Licorice root (Glycyrrhiza glabra) has been used worldwide as a traditional medicine for over 4,000 years, with records dating to the Assyrian Herbal (2000 BC) and the Ebers Papyrus (1600 BC). It was historically used for coughing, asthma, wound healing, and diseases of the lungs, liver, and arteries. In Traditional Chinese Medicine, licorice appears in approximately 60% of prescriptions. The German Commission E approves licorice for catarrhal conditions of the upper respiratory tract, and the EMA recommends it as an expectorant for cough associated with the common cold. Licorice contains glycyrrhizin, a triterpenoid saponin, along with flavonoids and other polyphenols.
Peppermint leaves
Peppermint (Mentha × piperita) has been used as a remedy for indigestion since ancient Egyptian times. Its primary active constituent, menthol, blocks Calcium channels in smooth muscle, producing antispasmodic effects on the gastrointestinal tract. The German Commission E approved Peppermint leaf for spastic complaints of the gastrointestinal tract, and the EMA recognizes its long-standing traditional use for relief of digestion-related problems such as indigestion and flatulence. People most often take Peppermint traditionally to soothe a sore throat and to relieve stomach upset.
White willow bark
White willow bark (Salix alba) has a history of traditional use stretching back more than 3,500 years, when Sumerians and Egyptians used it for comfort and support. Hippocrates reportedly prescribed willow bark for fever and pain. Native American tribes throughout North America used various willow species traditionally for pain relief and as a general anti-inflammatory agent. The bark contains salicin, a prodrug that is metabolized to salicylic acid. It has been traditionally used for muscle soreness and general muscle comfort, with its anti-inflammatory and analgesic properties supported by centuries of traditional practice across European, Native American, and Chinese herbal traditions.
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Who Benefits

Who Might Benefit from This Magnesium Supplement?

This Magnesium formula may be a good fit for anyone looking to support their nervous system health, maintain bone density, or address occasional muscle cramps. The diets of most people in the United States provide less than the recommended amounts of Magnesium, with men older than 70 and teenage girls most likely to have low intakes.

As we age, Magnesium absorption and retention can decrease, leading to deficiency and health consequences. Older people are more susceptible to Magnesium deficiency due to factors like decreased absorption from food, increased medication use (diuretics can deplete Magnesium), and potential dietary restrictions. People with type 2 diabetes, those with gastrointestinal disorders, and individuals with alcohol dependence are also more likely to have Magnesium inadequacy.

If you're active and looking for muscle recovery support, research suggests that exercise may increase Magnesium requirements by 10–20%. The addition of White willow bark and Peppermint leaves in the botanical base may offer complementary traditional support for muscle comfort and digestive ease.

Not sure if this formula matches your wellness goals? Our naturopath offers free consultations and can help you find the right fit.

Directions

How to Take This Magnesium Supplement

Take 1 tablet daily with a meal.

Each bottle contains 180 tablets, providing a generous six-month supply at the recommended serving size. Taking Magnesium with food may support comfortable digestion and optimal absorption.

If you're currently taking medications — particularly diuretics, proton pump inhibitors, bisphosphonates, or antibiotics — it's worth discussing timing with a healthcare professional, as Magnesium can interact with certain drugs. Our naturopath is always available for a free consultation to help you navigate supplement timing and interactions.

Sobre el autor

Escrito por Greg Howlett

GH

Greg Howlett

Founder

Greg has spent over a decade helping customers choose the right natural-health products. He personally vets every formula we carry and writes these guides to cut through the marketing noise with practical, experience-based advice.

Dudas comunes

Preguntas frecuentes

What forms of Magnesium are in this product?

This Nature's Sunshine Magnesium formula provides 250 mg of Magnesium per tablet using Magnesium oxide and Magnesium amino acid chelate. The amino acid chelate form involves Magnesium bound to amino acids, which may support absorption through the dipeptide transporter pathway. These two forms are combined in a base of Licorice root, Kelp plant, Peppermint leaves, and White willow bark.

Why does pure encapsulations Magnesium glycinate matter for nervous system health?

Magnesium is a natural NMDA receptor antagonist, meaning it modulates synaptic transmission and neuronal excitability. It plays a critical role in nerve signaling, and deficiency is associated with increased risk of neurological symptoms including numbness, tingling, and muscle cramps. Research suggests that supplementation supports normal nerve function and neuromuscular transmission.

Can Magnesium help with muscle cramps?

Magnesium deficiency impairs muscle relaxation — muscles may contract normally but struggle to fully release when Magnesium levels are low. Cochrane reviews of multiple RCTs found that while Magnesium is unlikely to provide meaningful cramp prevention in older adults with idiopathic cramps (moderate-certainty evidence), evidence for pregnancy-associated leg cramps remains conflicting. This formula also includes Calcium, and low Calcium (hypocalcemia) is recognized as a cause of muscle cramps and spasms in standard medical references.

How does Magnesium support bone density?

Magnesium is an essential cofactor in bone mineral metabolism and is required for vitamin D activation. Observational data from large cohort studies found higher Magnesium intake associated with 2–3% greater bone density in women. The formula also includes Calcium — the primary mineral constituent of bone — and Phosphorus, which together form hydroxyapatite, the mineral matrix that provides bones and teeth with structural integrity and strength.

What do the botanical ingredients contribute to this formula?

The botanical base includes Licorice root, Kelp leaf and stem, Peppermint leaves, and White willow bark. Licorice root has been traditionally used for over 4,000 years for respiratory and digestive comfort. Kelp provides a natural source of minerals including iodine. Peppermint leaves have been used traditionally since ancient Egyptian times for digestive support, and the German Commission E approves Peppermint leaf for spastic complaints of the gastrointestinal tract. White willow bark has been traditionally used for centuries for muscle comfort and general well-being.

Are there any precautions when taking this Magnesium supplement?

Magnesium supplements can occasionally cause softening of stool, nausea, or cramping, particularly at higher doses. These side effects are more common with inorganic forms like Magnesium oxide. Several medications — including diuretics, proton pump inhibitors, bisphosphonates, and certain antibiotics — can interact with Magnesium. The Licorice root in this formula contains glycyrrhizin, which in large amounts may affect blood pressure and potassium levels. If you take prescription medications or have a health condition, we recommend speaking with a healthcare professional or scheduling a free consultation with our naturopath before starting any new supplement.

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Pure Encapsulations Magnesium Glycinate Guide