# Zinc Fumarate **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/zinc-fumarate **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-04-04 **Evidence Score:** 2 / 10 **Category:** Mineral **Also Known As:** Zinc bis(fumarate), Fumaric acid zinc salt, Zinc(II) fumarate, Zinc fumarate dihydrate, Organic zinc fumarate ## Overview Zinc fumarate is an inorganic zinc salt formed by combining zinc ions with fumaric acid, a compound involved in the citric acid cycle. Unlike established zinc supplements such as zinc gluconate or zinc picolinate, zinc fumarate has no documented human clinical applications and is primarily studied in materials science and used as an animal feed additive. ## Health Benefits • No human health benefits have been clinically studied or documented in the available research • Current research focuses solely on materials science applications (metal-organic frameworks) • Only established use is as an animal feed additive • No evidence quality available due to absence of human studies • General zinc benefits may theoretically apply but are unconfirmed for this specific form ## Mechanism of Action Zinc fumarate dissociates into zinc cations (Zn²⁺) and fumarate anions upon dissolution, theoretically allowing zinc to participate in its established biological roles such as cofactor activity for over 300 metalloenzymes including carbonic anhydrase, alkaline phosphatase, and Cu/Zn superoxide dismutase. The fumarate component is a four-carbon dicarboxylate intermediate in the Krebs cycle, converted to malate via fumarase, though whether co-delivery of fumarate alongside zinc confers any synergistic metabolic advantage in humans has never been tested. No human receptor-binding, absorption kinetic, or bioavailability data specific to the fumarate chelation form currently exists in published literature. ## Clinical Summary As of the available published literature, zero human clinical trials have investigated zinc fumarate as a dietary supplement for any health outcome. Research featuring zinc fumarate is almost entirely confined to materials science, specifically its role in constructing metal-organic frameworks (MOFs) with applications in gas storage and catalysis. Animal feed studies have examined zinc fumarate's effect on growth performance in livestock, but these findings cannot be extrapolated to human supplementation dosing or efficacy. The complete absence of human pharmacokinetic, bioavailability, or intervention data means no evidence-based claims regarding efficacy or optimal dosage can be made. ## Nutritional Profile Zinc Fumarate is an organozinc compound consisting of zinc chelated with fumaric acid (a dicarboxylic organic acid). Elemental zinc content: approximately 28-30% by molecular weight (based on molecular formula ZnC4H2O4, MW ~179.4 g/mol). As a mineral supplement form, the primary nutritional component is ionic zinc (Zn²⁺), with fumarate serving as the organic ligand/counterion. Fumarate itself is an intermediate in the citric acid (Krebs) cycle and contributes negligible caloric or macronutrient value at supplemental doses. No measurable macronutrients (protein, fat, carbohydrate) are present in meaningful quantities. Bioavailability: Human bioavailability data is entirely absent from published literature; no comparative absorption studies versus zinc gluconate, zinc sulfate, zinc citrate, or zinc oxide have been conducted in humans. Theoretical bioavailability may be moderate-to-good based on the general principle that organic zinc chelates tend to be better absorbed than inorganic salts (e.g., zinc oxide), but this is entirely extrapolated and unconfirmed for this specific compound. Animal feed research suggests functional zinc delivery, but species-specific differences limit translation to human nutrition. No established Dietary Reference Intake (DRI) values exist for this specific zinc form. ## Dosage & Preparation No clinically studied dosage ranges are available as no human trials on zinc fumarate were found. The compound is described only as a bulk chemical or feed additive without standardization details for human use. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Because no human clinical trials have been conducted with zinc fumarate specifically, its safety profile, tolerability, and adverse event frequency in humans are entirely undocumented. General zinc toxicity thresholds established for other zinc forms suggest that chronic intake exceeding 40 mg elemental zinc per day (the adult Tolerable Upper Intake Level set by the NIH) can cause copper deficiency, impaired [immune function](/ingredients/condition/immune-support), and gastrointestinal distress, but whether these thresholds apply equivalently to zinc fumarate is unconfirmed. Zinc salts broadly can interfere with absorption of tetracycline and quinolone antibiotics, and may interact with penicillamine and thiazide diuretics, though no interaction studies specific to the fumarate form exist. Pregnant and breastfeeding individuals should avoid zinc fumarate given the complete absence of safety data for this specific compound in human populations. ## Scientific Research No human clinical trials, RCTs, or meta-analyses specifically on zinc fumarate were identified in the available sources. PubChem entries list general literature and patents but no linked PubMed PMIDs for human studies on this compound. Research appears limited to materials science applications rather than biomedical contexts. ## Historical & Cultural Context No evidence of zinc fumarate in traditional medicine systems exists, as it is a modern synthetic compound without historical use. The compound has no documented traditional or cultural applications. ## Synergistic Combinations Other zinc forms, vitamin C, copper, vitamin D, quercetin ## Frequently Asked Questions ### What is zinc fumarate used for? Zinc fumarate is currently used as an additive in animal feed formulations and is extensively studied in materials science for building metal-organic frameworks (MOFs) due to its coordination chemistry properties. It has no documented or clinically validated use as a human dietary supplement, and no manufacturer-sponsored or independent human trials have evaluated it for any health condition. ### Is zinc fumarate better absorbed than other zinc supplements? There is no human bioavailability data comparing zinc fumarate to other zinc forms such as zinc picolinate, zinc citrate, or zinc gluconate. Zinc picolinate and zinc bisglycinate are among the most studied forms for superior absorption, with some trials showing picolinate form absorption advantages over zinc citrate and gluconate. Until comparative pharmacokinetic studies in humans are conducted, any claim that zinc fumarate offers superior or inferior bioavailability is speculative. ### Are there any side effects of zinc fumarate? No human safety studies document side effects specific to zinc fumarate. By analogy with other zinc salts, common zinc-related side effects can include nausea, vomiting, stomach cramps, and diarrhea, particularly at doses exceeding 40 mg elemental zinc per day. Long-term excessive zinc intake from any source can deplete copper by competing for intestinal absorption via the metal transporter protein ZIP4, potentially leading to copper-deficiency anemia and neurological symptoms. ### Can I take zinc fumarate as a daily supplement? Zinc fumarate is not a recognized or recommended form of zinc supplementation in any major dietary guideline or clinical practice recommendation, including those from the NIH Office of Dietary Supplements or EFSA. There is no established human dosing protocol, no safety ceiling specific to this form, and no clinical evidence supporting a health benefit. Consumers seeking zinc supplementation would be better supported by evidence-backed forms such as zinc gluconate, zinc picolinate, or zinc acetate, which have documented human bioavailability and safety data. ### What is the difference between zinc fumarate and zinc citrate? Zinc citrate is a well-studied zinc supplement with documented human bioavailability data; a 2014 study in the European Journal of Clinical Nutrition found zinc citrate absorption was comparable to zinc gluconate at approximately 61% relative bioavailability. Zinc fumarate, by contrast, has no equivalent human absorption studies, no clinical trial record, and no established supplemental use in humans. The key structural difference is the anion: citrate is a tricarboxylate Krebs cycle intermediate, while fumarate is a dicarboxylate intermediate, but neither distinction has been evaluated for its practical impact on zinc delivery in human subjects. ### Is there clinical research on zinc fumarate for human health? Currently, there are no published clinical studies documenting zinc fumarate's effects on human health. Existing research focuses primarily on materials science applications and its use as an animal feed additive rather than human supplementation. This lack of human trials means health claims cannot be substantiated with scientific evidence specific to this form. ### Why is zinc fumarate used in animal feed if not in human supplements? Zinc fumarate is established as an animal feed additive because it has demonstrated utility in livestock nutrition and material stability in that context. However, the absence of human clinical validation means it has not been adopted or studied for consumer supplement use in the same way other zinc forms have been. ### Should I choose zinc fumarate over established zinc supplement forms? Without clinical evidence specific to zinc fumarate in humans, it is not recommended to choose this form over well-researched alternatives like zinc citrate, gluconate, or picolinate. Established zinc forms have documented absorption data and safety profiles in human populations, whereas zinc fumarate's effectiveness and safety for supplementation remain unstudied. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*