Magnesium Citrate 200 mg: Muscle Relaxation, Better Sleep, Metabolic Energy and Nervous Support – High Bioavailability Magnesium for Stress, Cramps and Cardiovascular Function

Magnesium Citrate 200 mg, NOW Foods is a premium dietary supplement formulated to provide elemental magnesium 400 mg (95% NRV) derived from 2660 mg magnesium citrate, one of the forms appreciated for its absorption and tolerability. Magnesium is an essential mineral involved in over 300 enzymatic reactions, having a central role in energy production (ATP), nervous system function, muscle relaxation, electrolyte balance, cardiovascular health and maintaining bone density. In the context of modern lifestyle – high stress, increased caffeine consumption, processed diet, intense physical effort or insufficient sleep – magnesium requirements can increase, and subclinical deficiency is common and can go unnoticed.

Magnesium citrate combines magnesium with citric acid, resulting in a salt with good solubility, useful for people seeking an efficient form of magnesium, oriented toward supporting neuromuscular relaxation and daily comfort. Magnesium directly influences nervous excitability, muscle contraction and relaxation, neurotransmitter synthesis and balance between the sympathetic nervous system ("fight or flight") and parasympathetic ("rest and digest"). Through these mechanisms, an optimal magnesium intake can be associated with better tone, reduced muscle tension, a more balanced reaction to stress and better sleep quality.

Besides effects on nerves and muscles, magnesium is essential for carbohydrate and lipid metabolism, contributing to efficient nutrient utilization for energy and maintaining stable metabolic balance. Also, magnesium works in synergy with calcium and vitamin D in maintaining bone health, supporting mineralization and skeletal structural function. Through an intake of 400 mg elemental magnesium, Magnesium Citrate, NOW Foods offers a consistent dose, suitable for people who want real support for stress, fatigue, cramps, sleep and cardiovascular function, in a formula oriented toward efficiency.

Detailed Benefits of Magnesium Citrate 200 mg (400 mg elemental magnesium)

• Muscle Relaxation and Cramp Reduction Through Neuromuscular Balance

Magnesium is one of the most important nutrients for muscle function, because it participates in the mechanisms by which the muscle contracts and, especially, relaxes. While calcium stimulates contraction, magnesium acts as a "physiological antagonist," contributing to relaxation and preventing muscle hyperexcitability.

When magnesium intake is insufficient, the following may appear:
• persistent muscle tension
• cramps, especially nocturnal or after effort
• spasms and muscle "tremor"
• stiffness and slower recovery

Through supplementation with magnesium citrate, the body can support:
✅ relaxation of muscle fibers after effort
✅ reducing the tendency toward cramps and spasms
✅ better muscle comfort in repetitive activities
✅ more efficient recovery and increased mobility

This benefit is relevant for athletes, active people, people with physical work, but also for those who frequently experience muscle tension due to stress.

• Supporting the Nervous System and Balance During Periods of Stress

The nervous system needs magnesium for nerve impulse transmission, regulating neuronal excitability and synthesizing neurotransmitters involved in calmness and adaptation. Magnesium is associated with modulating stress response, because it contributes to the balance between stimulation and relaxation, also influencing the quality of mental recovery.

Magnesium can contribute to:
• reducing hyperreactivity to daily stress
• supporting mental calmness and clarity
• balancing nervous tension and irritability
• maintaining cognitive function in demanding periods

Under conditions of chronic stress, magnesium reserves can diminish more rapidly, and supporting intake can help maintain psychic resilience and a general state of stability.

• Deeper Sleep and Better Quality of Nighttime Recovery

Quality sleep depends on the nervous system's ability to enter a state of relaxation. Magnesium is involved in the functioning of receptors and mediators that favor calmness, contributing to reducing excessive activity of the sympathetic nervous system. In addition, through muscle relaxation, magnesium can improve body comfort, reducing awakenings caused by tension or cramps.

Benefits may include:
✅ easier falling asleep through neuromuscular relaxation
✅ reducing nocturnal awakenings associated with tension
✅ more restful sleep and better recovery
✅ more stable energy state in the morning

This support is important for people with a busy schedule, high stress, intense training or fragmented sleep.

• Metabolic Energy and Supporting ATP Production

Magnesium is indispensable for energy production at the cellular level. Practically, ATP (the body's energy molecule) functions correctly in the presence of magnesium, being involved in key enzymatic reactions of carbohydrate, lipid and protein metabolism. Thus, magnesium directly influences tone, resistance to effort and the body's ability to transform nutrients into usable energy.

Magnesium can contribute to:
• reducing fatigue and exhaustion
• supporting physical performance and endurance
• improving metabolic efficiency
• optimal cellular functioning in demanding periods

This benefit is relevant both for active people and for those who experience persistent fatigue associated with modern lifestyle.

• Cardiovascular Health and Normal Heart Function

Magnesium is an essential mineral for normal heart rhythm, muscle contractility and electrolyte balance. It contributes to the normal function of cardiac muscle and to regulating electrical impulses that coordinate heartbeats. Also, magnesium supports blood vessel relaxation and vascular tension balance, being important for circulation and cardiovascular comfort.

Magnesium can support:
✅ normal cardiac function and physiological rhythm
✅ electrolyte balance and nervous conductivity
✅ vascular relaxation and more efficient circulation
✅ reducing stress impact on the cardiovascular system

Through these mechanisms, Magnesium Citrate can be integrated into cardiovascular support strategies oriented toward balance and resilience.

• Electrolyte Balance and Support for Functional Hydration

Electrolytes (magnesium, potassium, sodium, calcium) control water distribution in the body and nerve signal transmission. Magnesium plays a key role in maintaining electrolyte balance, contributing to neuromuscular stability and optimal body functioning under conditions of effort, perspiration or stress.

Magnesium can contribute to:
• reducing imbalances that favor cramps
• supporting performance in activities with intense perspiration
• stabilizing nervous and muscular function
• maintaining functional hydration at the cellular level

This benefit is important for athletes, people who work in hot environments or those who have a very active lifestyle.

• Supporting Bone Health Through Mineral Synergy

Although calcium is most frequently associated with bones, magnesium is equally important for mineral density and efficient calcium utilization. Magnesium contributes to mineralization processes and maintaining bone structure, being useful especially long-term, in strategies to maintain skeletal strength.

Magnesium supports:
✅ bone density and skeletal structure
✅ normal function of muscles that stabilize joints
✅ balance between minerals involved in bone (Ca-Mg)
✅ maintaining mobility and stability over time

Through the dose of 400 mg elemental magnesium, Magnesium Citrate, NOW Foods offers complex mineral support for the musculoskeletal system, with impact on both bones and musculature.

• High Bioavailability Through Citrate Form and Functional Digestive Support

Magnesium citrate is a form appreciated for solubility and efficient absorption. Through this characteristic, the product is suitable for people seeking an "active" magnesium, felt at the neuromuscular and metabolic level. In addition, citrate is often associated with support for transit and digestive comfort, because it can influence intestinal osmotic balance and motility, which makes it relevant in contexts of slow digestion or sedentary lifestyle.

Through this formula, Magnesium Citrate 200 mg, NOW Foods offers a complete approach for relaxation, sleep, energy and nervous function, with a high concentration of elemental magnesium and a profile oriented toward the real needs of the body in daily life.

Directions for Use

Capsules Version

Tablets Version

Softgels Version

Other Ingredients

Warnings