# Magnesium Thiosulfate **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/magnesium-thiosulfate **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-25 **Evidence Score:** 2 / 10 **Category:** Mineral **Also Known As:** MgS2O3, Magnesium thiosulphate, Magnesium hyposulfite, Thiosulfuric acid magnesium salt, Mag thiosulfate, MTS ## Overview Magnesium thiosulfate is an inorganic magnesium salt combining magnesium cations (Mg²⁺) with thiosulfate anions (S₂O₃²⁻), primarily studied in industrial and chemical contexts rather than biomedical applications. No clinical trials or human studies have evaluated its use as a dietary supplement, and its therapeutic potential remains entirely undocumented in peer-reviewed biomedical literature. ## Health Benefits • No documented health benefits - no clinical trials identified in available sources • No therapeutic applications studied - research limited to chemical properties only • No biomedical evidence - absent from PubMed and biomedical databases • No mechanisms of action documented - only physical/chemical data available • No traditional medicinal uses recorded - purely industrial/agricultural compound ## Mechanism of Action Magnesium thiosulfate has no documented mechanism of action in human physiology based on available biomedical literature. Theoretically, if dissociated in biological fluids, the Mg²⁺ ion could interact with ATP-dependent enzymes and NMDA receptors as seen with other magnesium compounds, while the thiosulfate anion (S₂O₃²⁻) may theoretically act as a sulfur donor or [antioxidant](/ingredients/condition/antioxidant) precursor, though neither pathway has been studied in vivo. No receptor binding, enzyme modulation, or cellular signaling data exists for this specific compound in any published biomedical research. ## Clinical Summary No clinical trials, animal studies, or human observational data have been published evaluating magnesium thiosulfate as a health supplement or therapeutic agent. A search of PubMed and major biomedical databases returns no results linking this compound to human or animal health outcomes. Its close chemical relative, sodium thiosulfate, has been studied as an antidote for cyanide poisoning and calciphylaxis treatment, but these findings cannot be extrapolated to magnesium thiosulfate without direct evidence. The current evidence base is insufficient to support any health claims, dosage recommendations, or clinical use. ## Nutritional Profile Magnesium thiosulfate (MgS₂O₃) provides magnesium at approximately 20% by molecular weight, delivering both magnesium ions (Mg²⁺) and thiosulfate anions (S₂O₃²⁻) upon dissolution. As a mineral salt, it contains no macronutrients, vitamins, fiber, or protein. The magnesium component mirrors the elemental mineral found in other magnesium salts, with magnesium comprising roughly 200mg per gram of compound. The thiosulfate moiety contributes sulfur in a reduced oxidation state (+2), structurally analogous to sulfate but with distinct redox chemistry. Bioavailability data specific to this salt form is absent from nutritional literature; magnesium absorption generally ranges 30-40% depending on gut conditions, though thiosulfate's influence on this uptake is undocumented. The compound is primarily characterized in industrial and agricultural chemistry contexts rather than nutritional science. ## Dosage & Preparation No clinically studied dosage ranges exist as no clinical data supports therapeutic use of magnesium thiosulfate. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions The safety profile of magnesium thiosulfate as a dietary supplement or therapeutic agent has not been established in any published human or animal study. Because the compound contains magnesium, excessive intake could theoretically cause hypermagnesemia symptoms such as diarrhea, nausea, hypotension, and cardiac conduction abnormalities, particularly in individuals with impaired renal function. The thiosulfate component may interact with sulfur-sensitive pathways, but no specific drug interaction data exists for this compound. Use during pregnancy or lactation is not supported by any safety data, and its consumption is not recommended without substantial future research. ## Scientific Research No human clinical trials, randomized controlled trials (RCTs), or meta-analyses were identified for magnesium thiosulfate in the available sources. PubMed PMIDs and specific biomedical studies are absent from the chemical databases reviewed. ## Historical & Cultural Context No historical or traditional medicinal uses in any medical systems are referenced in the available sources. The compound appears to have been developed solely for industrial and agricultural applications. ## Synergistic Combinations The magnesium component of magnesium thiosulfate may theoretically pair with vitamin B6 (pyridoxine), which is known to enhance intracellular magnesium retention and uptake across cell membranes, and with vitamin D3, which upregulates magnesium transport proteins in the intestinal epithelium. The thiosulfate anion shares chemical reactivity with other sulfur-donating compounds such as N-acetylcysteine (NAC) and sodium thiosulfate, where combined sulfur availability could theoretically support hepatic detoxification pathways and cyanide [metabolism](/ingredients/condition/weight-management) via rhodanese enzyme activity — the primary documented biochemical role of thiosulfate. Taurine, a sulfur-containing amino acid, may complement the magnesium fraction through overlapping roles in membrane stabilization and electrolyte regulation, though all proposed pairings remain speculative given the absence of clinical or preclinical synergy studies specific to magnesium thiosulfate. ## Frequently Asked Questions ### What is magnesium thiosulfate used for? Magnesium thiosulfate has no documented medical or nutritional uses supported by clinical evidence. It is primarily referenced in industrial and chemical contexts, such as in photography and chemical synthesis. No regulatory body, including the FDA or EFSA, has approved it for any therapeutic or supplemental application. ### Is magnesium thiosulfate safe to take as a supplement? The safety of magnesium thiosulfate as a supplement has not been evaluated in any published human or animal study, so no safety profile can be established. Its magnesium content suggests a theoretical risk of hypermagnesemia at high doses, especially in people with kidney disease. Until clinical safety data exists, consumption as a supplement is not advisable. ### How does magnesium thiosulfate differ from magnesium sulfate? Magnesium thiosulfate (MgS₂O₃) contains a thiosulfate anion (S₂O₃²⁻), while magnesium sulfate (MgSO₄) contains a simpler sulfate anion (SO₄²⁻). Magnesium sulfate, commonly known as Epsom salt, has extensive clinical research supporting uses including eclampsia treatment and laxative applications. Magnesium thiosulfate lacks any comparable research record and should not be treated as equivalent. ### Does magnesium thiosulfate appear in any clinical research? Magnesium thiosulfate does not appear in PubMed or major biomedical databases in the context of human health research as of available data. Its chemical analog, sodium thiosulfate, has clinical research behind it, but that evidence does not transfer to the magnesium salt without independent study. Researchers have not investigated this compound's bioavailability, absorption, or efficacy in any published trial. ### What is the difference between magnesium thiosulfate and sodium thiosulfate? The key difference is the cation: magnesium thiosulfate contains Mg²⁺, while sodium thiosulfate contains Na⁺, paired with the same thiosulfate anion (S₂O₃²⁻). Sodium thiosulfate has established clinical uses including treatment of cyanide poisoning (300–500 mg/kg IV) and calciphylaxis, with documented pharmacokinetics. Magnesium thiosulfate has no equivalent clinical research and its pharmacological behavior in the human body is entirely unknown. ### Why is magnesium thiosulfate not commonly found in supplement products? Magnesium thiosulfate lacks clinical evidence supporting health benefits and has no documented biomedical mechanisms of action in human supplementation. The compound is primarily used in industrial and agricultural applications rather than as a nutritional supplement, which explains its absence from mainstream supplement formulations. ### What is the chemical composition of magnesium thiosulfate and why does it matter? Magnesium thiosulfate is composed of magnesium ions bonded to thiosulfate (S₂O₃²⁻), a chemical structure that differs significantly from standard magnesium supplements like magnesium citrate or magnesium glycinate. This unique composition makes it unsuitable for human supplementation since its bioavailability and effects in the body have never been established through research. ### Is magnesium thiosulfate regulated as a dietary supplement ingredient? Magnesium thiosulfate is not approved or recognized as a dietary supplement ingredient by regulatory authorities due to the complete absence of safety and efficacy data in human use. It remains classified as an industrial chemical with applications in manufacturing and agriculture, not as a supplement-grade ingredient. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*