GI Hist Support by Neurobiologix is a professional-grade histamine metabolism support formula designed to promote healthy histamine clearance in the gastrointestinal tract, support normal diamine oxidase (DAO) enzyme activity, and maintain healthy histamine balance in individuals with dietary histamine sensitivity or impaired histamine degradation capacity. This 60-capsule formula combines DAO enzyme support nutrients with complementary botanical and nutritional cofactors that address both the enzymatic degradation and the methylation clearance pathways responsible for healthy histamine metabolism.
- Diamine Oxidase (DAO) Enzyme Support: DAO is the primary enzyme responsible for degrading ingested histamine in the intestinal lumen and mucosal tissue. This formula supports healthy DAO enzyme activity, promoting normal histamine breakdown from dietary sources and maintaining healthy histamine levels in the gastrointestinal tract.
- Copper (as Copper Bisglycinate): An essential cofactor for diamine oxidase activity, supporting healthy DAO enzyme function and promoting normal histamine degradation in the intestinal mucosa. Adequate copper status is required for optimal DAO enzymatic activity.
- Vitamin B6 (as Pyridoxal-5-Phosphate): Supports healthy DAO enzyme synthesis and promotes normal histamine metabolism as an essential cofactor for diamine oxidase production in intestinal epithelial cells.
- Vitamin C (as Ascorbic Acid): Supports healthy histamine degradation through its role in promoting normal DAO activity and maintaining antioxidant defense in mucosal tissue exposed to histamine-related oxidative stress.
- Quercetin: A flavonoid that supports healthy mast cell stability, promotes normal histamine release regulation, and maintains healthy inflammatory balance in the gastrointestinal mucosa through its inhibitory effects on mast cell degranulation.
- Stinging Nettle (Urtica dioica) Leaf Extract: Supports healthy histamine receptor activity and promotes normal inflammatory balance in mucosal tissue, maintaining healthy histamine response in the gastrointestinal and respiratory mucosa.
- Bromelain: A proteolytic enzyme from pineapple that supports healthy mucosal tissue integrity, promotes normal absorption of quercetin and other flavonoids, and maintains healthy inflammatory balance in the gastrointestinal tract.
- N-Acetyl-L-Cysteine (NAC): Supports healthy glutathione synthesis and promotes normal antioxidant defense in intestinal mucosal tissue, maintaining healthy cellular protection in the context of histamine-related oxidative activity.
- Riboflavin (as Riboflavin-5-Phosphate): Supports healthy methylenetetrahydrofolate reductase (MTHFR) activity and promotes normal HNMT (histamine N-methyltransferase) enzyme function, maintaining healthy intracellular histamine methylation and clearance.
- Folate (as Methylfolate): Supports healthy methylation pathways required for HNMT-mediated histamine clearance, promoting normal intracellular histamine degradation through the methylation route alongside the DAO extracellular pathway.
- Zinc (as Zinc Bisglycinate): Supports healthy intestinal mucosal barrier integrity, promotes normal tight junction protein expression, and maintains healthy DAO enzyme activity in the intestinal epithelium.
- Magnesium (as Magnesium Glycinate): Supports healthy enzymatic activity across multiple histamine metabolism pathways and promotes normal mast cell membrane stability, maintaining healthy histamine release regulation in gastrointestinal tissue.
- Intestinal Mucosal Barrier Support: This formula supports healthy tight junction integrity in the intestinal epithelium, promoting normal selective permeability and maintaining healthy mucosal barrier function that limits excessive histamine absorption from the gut lumen into systemic circulation.
GI Hist Support is formulated around the two primary enzymatic pathways responsible for healthy histamine clearance: the extracellular DAO pathway, which degrades histamine in the intestinal lumen and mucosal tissue before it enters systemic circulation, and the intracellular HNMT pathway, which methylates and inactivates histamine within cells using SAM-e as a methyl donor. By addressing both pathways simultaneously through DAO cofactor support (copper, B6, Vitamin C) and methylation support (Methylfolate, Riboflavin-5-Phosphate), this formula provides a more comprehensive approach to histamine metabolism than products that target only one pathway. The inclusion of Quercetin and Stinging Nettle addresses the upstream mast cell stability dimension of histamine balance, supporting healthy histamine release regulation at the source rather than only addressing downstream degradation.
Dietary & Quality Standards
- Free from wheat, gluten, soy, milk, eggs, fish, crustacean shellfish, tree nuts, and peanuts
- Formulated to be low-histamine and suitable for individuals following histamine elimination protocols
- Active B vitamin forms (Methylfolate, Pyridoxal-5-Phosphate, Riboflavin-5-Phosphate) for enhanced cofactor activity
- Chelated mineral forms (Bisglycinate) for superior absorption and tolerability
- Free from artificial colors, flavors, and preservatives
- Manufactured by Neurobiologix under professional-grade quality standards
- Practitioner-formulated for clinical and integrative wellness use
Frequently Asked Questions
What is GI Hist Support used for?
GI Hist Support is a histamine metabolism support formula designed to promote healthy DAO enzyme activity, support normal histamine clearance in the gastrointestinal tract, and maintain healthy histamine balance in individuals with dietary histamine sensitivity or impaired histamine degradation. It is intended for adults working with a qualified healthcare practitioner to address histamine-related digestive and systemic wellness concerns.
How do I take GI Hist Support?
Dosing should be directed by a qualified healthcare practitioner. DAO enzyme support supplements are generally taken before meals that contain high-histamine foods to support histamine degradation in the intestinal lumen during digestion. Consistent daily use alongside a low-histamine dietary protocol is typically recommended for optimal support of histamine metabolism.
What is diamine oxidase (DAO) and why does it matter?
Diamine oxidase is the primary enzyme responsible for breaking down histamine ingested through food in the intestinal lumen and mucosal tissue. When DAO activity is insufficient, dietary histamine from fermented foods, aged cheeses, wine, processed meats, and other high-histamine foods may not be adequately degraded before absorption, contributing to elevated histamine levels in the body. Supporting healthy DAO activity through its essential cofactors is a foundational approach to managing dietary histamine sensitivity.
What foods are high in histamine that I should be aware of?
High-histamine foods commonly include fermented and aged products such as aged cheeses, wine, beer, fermented vegetables, cured and processed meats, vinegar, and certain fish. Foods that promote histamine release from mast cells, called histamine liberators, include tomatoes, citrus fruits, strawberries, chocolate, and alcohol. A qualified healthcare provider or registered dietitian can help you identify your individual histamine triggers and design an appropriate dietary protocol to use alongside this supplement.
Is GI Hist Support the same as taking a DAO enzyme supplement?
GI Hist Support is a comprehensive histamine metabolism formula that includes DAO enzyme cofactors (copper, B6, Vitamin C) rather than exogenous DAO enzyme itself. It supports the body's own DAO enzyme production and activity, as well as the complementary HNMT methylation pathway for intracellular histamine clearance. Some individuals may benefit from combining DAO cofactor support with exogenous DAO enzyme supplements depending on their individual DAO production capacity. Consult your healthcare provider to determine the most appropriate approach for your situation.
Can GI Hist Support be taken with antihistamine medications?
GI Hist Support works through nutritional support of histamine metabolism enzymes rather than through histamine receptor blockade, which is the mechanism of antihistamine medications. These approaches are generally complementary rather than duplicative. However, individuals taking prescription antihistamines or other medications for histamine-related conditions should consult their healthcare provider before adding any supplement to their regimen.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.
