# Chromium Glycerylphosphate **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/chromium-glycerylphosphate **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-04-04 **Evidence Score:** 2 / 10 **Category:** Mineral **Also Known As:** Chromium glycerol phosphate, Chromium glycerophosphate, Chelated chromium glycerylphosphate, Chromium(III) glycerylphosphate, Glycerol phosphate chromium complex ## Overview Chromium glycerylphosphate is a compound combining the essential trace mineral chromium with glycerophosphate, theoretically designed to enhance chromium bioavailability and support [glucose metabolism](/ingredients/condition/weight-management) via insulin signaling pathways. As a relatively obscure chromium chelate, it lacks dedicated clinical research, making its specific efficacy profile largely extrapolated from broader chromium supplementation literature. ## Health Benefits • No specific health benefits can be cited from the provided research as chromium glycerylphosphate was not studied in the available literature • The research dossier only contains information about glycerol phosphate compounds in isolation • Clinical evidence for this specific chromium form is absent from the provided studies • No meta-analyses or RCTs were found examining chromium glycerylphosphate • Health benefit claims cannot be substantiated without proper clinical research ## Mechanism of Action Chromium, as the active mineral component, is believed to potentiate insulin receptor tyrosine kinase activity by facilitating the binding of the chromium-binding oligopeptide chromodulin to the insulin receptor, amplifying downstream glucose transporter GLUT-4 translocation to cell membranes. The glycerophosphate moiety may serve as a carrier ligand to improve intestinal absorption and cellular uptake compared to inorganic chromium salts. However, no published mechanistic studies have specifically characterized the intracellular behavior or receptor interactions unique to the glycerylphosphate chelate form of chromium. ## Clinical Summary No published randomized controlled trials, observational studies, or pharmacokinetic investigations specifically examine chromium glycerylphosphate as an isolated intervention. General chromium supplementation research, primarily using chromium picolinate and chromium polynicotinate at doses of 200–1000 mcg/day, has shown modest effects on fasting glucose and HbA1c in individuals with type 2 diabetes or [insulin resistance](/ingredients/condition/weight-management), though effect sizes are generally small and study quality is mixed. A 2014 Cochrane-adjacent systematic review of chromium supplementation found insufficient evidence to recommend chromium for glycemic control in the general population. Until form-specific trials are conducted for chromium glycerylphosphate, its clinical utility cannot be independently established beyond inference from general chromium research. ## Nutritional Profile Chromium glycerylphosphate (also known as chromium glycerophosphate) is an organically-bound mineral salt providing trivalent chromium (Cr³⁺) complexed with glycerophosphoric acid. Approximate chromium content: ~12–14% elemental chromium by weight (varies by manufacturer specification, typically standardized to deliver a known Cr³⁺ dose per gram). The glycerophosphate moiety contributes trace amounts of phosphorus (~10–12% by weight) and a glycerol backbone. No significant macronutrient contribution (negligible calories, protein, fat, or carbohydrate) at supplemental doses (typically 200–1000 µg elemental chromium per day). Contains no vitamins, fiber, or other bioactive compounds beyond the chromium ion and the glycerophosphate carrier. Bioavailability notes: Organically-bound chromium forms (such as picolinate, nicotinate, and glycerophosphate) are generally considered to have superior absorption compared to inorganic chromium chloride (CrCl₃), which has bioavailability of only ~0.4–2.0%. Glycerophosphate salts are recognized for enhanced solubility and gastrointestinal tolerability compared to inorganic mineral salts, potentially improving passive and active intestinal absorption. However, direct pharmacokinetic studies specifically quantifying the bioavailability of chromium glycerylphosphate versus other chromium forms (e.g., chromium picolinate at ~2–5% absorption) are lacking in published literature. The glycerophosphate ligand is hydrolyzed in the gut to glycerol and inorganic phosphate, which may facilitate chromium release for absorption in the duodenum and jejunum. Total body chromium stores are estimated at 4–6 mg in adults; adequate intake (AI) is set at 25 µg/day for adult women and 35 µg/day for adult men (per IOM). Chromium is an ultra-trace mineral with no established RDA, and the tolerable upper intake level (UL) has not been formally set due to insufficient toxicity data for trivalent chromium forms. ## Dosage & Preparation No clinically studied dosage ranges for chromium glycerylphosphate were identified in the research. Without clinical trial data or safety studies, appropriate dosing cannot be determined. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Chromium supplementation broadly is considered well tolerated at doses up to 1000 mcg/day, with the most commonly reported adverse effects being gastrointestinal discomfort, headache, and [insomnia](/ingredients/condition/sleep) at higher doses. Chromium may potentiate the hypoglycemic effects of insulin, metformin, and sulfonylureas, requiring careful [blood glucose](/ingredients/condition/weight-management) monitoring in diabetic patients using these medications. The glycerophosphate ligand itself has no established significant toxicity, though individuals with severe renal impairment should exercise caution with any phosphate-containing compound. Chromium supplementation during pregnancy and lactation is not well studied and is generally advised only under direct medical supervision. ## Scientific Research No clinical trials or meta-analyses examining chromium glycerylphosphate were found in the research dossier. The available studies focused solely on glycerol phosphate compounds without any connection to chromium supplementation. Without access to specific PMIDs or clinical data for this ingredient, evidence-based claims cannot be made. ## Historical & Cultural Context No historical or traditional use information for chromium glycerylphosphate was found in the provided research. The research dossier contains no documentation of this compound's use in any traditional medicine system or historical context. ## Synergistic Combinations Cannot be determined without clinical research ## Frequently Asked Questions ### What is chromium glycerylphosphate used for? Chromium glycerylphosphate is theoretically used to support healthy blood glucose metabolism and insulin sensitivity by delivering chromium in a chelated form intended for improved absorption. Because chromium activates the oligopeptide chromodulin to enhance insulin receptor signaling, this compound is marketed in contexts related to metabolic health and blood sugar management. However, no clinical studies have confirmed these benefits specifically for the glycerylphosphate form. ### Is chromium glycerylphosphate better absorbed than other chromium forms? There is no published comparative bioavailability data specifically for chromium glycerylphosphate versus forms like chromium picolinate, chromium chloride, or chromium nicotinate. Chromium picolinate is currently the most clinically studied high-bioavailability chelate, with picolinic acid facilitating intestinal absorption. The glycerophosphate ligand may theoretically improve absorption by stabilizing chromium in the gastrointestinal tract, but this remains unverified in human pharmacokinetic studies. ### What dose of chromium glycerylphosphate should I take? No established dosing guidelines exist specifically for chromium glycerylphosphate due to the absence of clinical trials for this form. General chromium supplementation research typically employs 200–1000 mcg elemental chromium per day, with 200–400 mcg being a common range for metabolic support in adults. Dosing should be guided by the elemental chromium content listed on the product label, and consultation with a healthcare provider is strongly recommended. ### Can chromium glycerylphosphate interact with diabetes medications? Yes, chromium as an elemental mineral can enhance insulin sensitivity and potentiate the blood-glucose-lowering effects of medications including insulin, metformin, glipizide, and other sulfonylureas, potentially increasing the risk of hypoglycemia. Patients on antidiabetic drug regimens should monitor blood glucose closely and inform their prescribing physician before adding any chromium supplement. No interaction studies specific to the glycerylphosphate form have been published, but the risk is extrapolated from the chromium mineral itself. ### Is chromium glycerylphosphate safe for long-term use? Long-term safety data for chromium glycerylphosphate specifically does not exist in the published literature. General chromium supplementation at doses up to 1000 mcg/day of elemental chromium has not demonstrated significant toxicity in short-to-medium-term human trials lasting up to 6 months. Concerns about theoretical oxidative DNA damage from certain chromium chelates have been raised in animal studies at supraphysiological doses, but these findings have not been replicated with clinical chromium supplementation at standard human doses. ### How does chromium glycerylphosphate differ from other chromium supplement forms? Chromium glycerylphosphate is a chelated form of chromium bound to glycerol phosphate, which is theoretically designed to enhance stability and absorption compared to inorganic chromium salts. However, direct clinical comparisons between chromium glycerylphosphate and other popular forms like chromium picolinate or chromium polynicotinate are limited in published research. The glycerol phosphate carrier may offer different bioavailability characteristics, but robust evidence comparing its effectiveness to other chromium forms is currently unavailable. ### What is the evidence quality for chromium glycerylphosphate safety and efficacy? Clinical evidence specifically examining chromium glycerylphosphate is absent from peer-reviewed literature, making it difficult to establish robust safety and efficacy profiles for this particular form. While chromium as a mineral is generally recognized as safe within established ranges, the lack of dedicated studies on this formulation means safety data relies on general chromium research rather than ingredient-specific trials. Anyone considering this supplement should consult with a healthcare provider due to the limited clinical evidence specific to this form. ### Who should consider chromium glycerylphosphate supplementation? Without specific clinical evidence for chromium glycerylphosphate, recommendations about which populations might benefit are limited to general chromium research rather than this particular form. Individuals interested in chromium supplementation for general metabolic support should discuss options with a healthcare provider who can recommend forms with stronger clinical evidence. The absence of dedicated studies on this ingredient makes it difficult to identify which groups would benefit most from this specific chromium formulation. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*