Source Naturals Magnesium Malate 100 Caps
Analysis updated August 2026 · How Scout scores
At a glance
Summary
This magnesium supplement uses magnesium malate, a highly bioavailable form that supports muscle and nerve function, which is a positive aspect of its formulation. However, the presence of magnesium stearate, a common additive that can potentially affect nutrient absorption, slightly detracts from its overall quality. The product contains a moderate number of additives, which impacts its processing level, but it remains a generally beneficial supplement.
Key ingredients 8
MagnesiumGood
Magnesium is an essential mineral that supports numerous bodily functions, including muscle and nerve function, blood glucose control, and bone health. The form used here, magnesium malate, is known for its high bioavailability and potential to reduce muscle pain and fatigue. It is a high-quality active ingredient in supplements, contributing positively to overall health.
Benefits
Magnesium supports energy production, muscle relaxation, and is crucial for maintaining a healthy immune system.
Malic AcidGood
Malic acid is a naturally occurring compound that plays a role in the Krebs cycle, enhancing energy production in the body. It is often used in supplements to improve energy levels and reduce muscle fatigue. The combination with magnesium enhances its absorption and effectiveness.
Benefits
Malic acid can help improve energy levels and reduce muscle soreness, especially when combined with magnesium.
Stearic AcidNeutral
Stearic acid is a fatty acid commonly used as a lubricant in supplement manufacturing. It is generally considered safe and does not significantly impact health at the levels used in supplements. It serves primarily as a processing aid without notable health benefits or risks.
See more about Stearic Acid →Microcrystalline CelluloseNeutral
Microcrystalline cellulose is a refined wood pulp used as a bulking agent in supplements. It is inert and does not affect the nutritional value of the product. It is used to ensure consistent tablet size and stability.
See more about Microcrystalline Cellulose →Acacia GumNeutral
Acacia gum is a natural gum derived from the sap of the acacia tree, used as a stabilizer and emulsifier in supplements. It is generally recognized as safe and does not contribute significant nutritional value. It helps maintain the consistency and texture of the product.
See more about Acacia Gum →Magnesium StearateNeutral
Standard formulation ingredient — neither beneficial nor harmful at typical use.
Risks
May inhibit nutrient absorption and form biofilms in the intestines when consumed in large amounts.
SilicaNeutral
Silica is used as an anti-caking agent in supplements to prevent clumping. It is considered safe and does not impact the nutritional profile of the product. It ensures the product remains free-flowing and easy to handle.
See more about Silica →Modified Cellulose GumNeutral
Modified cellulose gum is used as a thickener and stabilizer in supplements. It is derived from cellulose and is generally recognized as safe. It helps maintain the structural integrity of the supplement without affecting its nutritional value.
Processing
Processed Foods
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