SKU 9973 Category

G.I Hist Support – 60 veg caps – Neuro Biologix


G.I. Hist Support is a formula designed to assist patients who have trouble processing external sources of histamine rich foods and nutritional elements. This formula is especially helpful for those with genetic weaknesses in A01C (Diamine Oxidase), the main enzyme responsible for the degradation of ingested histamine.*

Enjoy histamine rich foods and beverages again by utilizing GI Hist!

A key active ingredient in G.I. Hist Support is porcine-derived diamine oxidase (DAO), and research suggests that DAO derived from porcine kidney appears to have identical action to DAO derived from porcine intestine. Along with 5 other ingredients shown to support allergy relief, GI Hist is one of the best supplements on the market that includes key cofactors along with high dose DAO.*

300mg of Porcine Kidney Extract = 20,000 IUs of Diamine Oxidase (DAO)

Each ingredient is clinically tested to assist with histamine degradation and the oxidative stress created by histamines.*

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Allergen Information

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Vitamin C (ascorbic acid) 200mg, N-Acetyl-L-Cysteine (NAC) 100mg, Porcine Kidney Powder 300mg, Alpha Lipoic Acid 100mg, Stinging Nettle Root 4:1 50mg, Bromelain 100mg.
Other Ingredients: Vegetable Cellulose (capsule), Microcrystalline Cellulose, Ascorbyl Palmitate and Silicone Dioxide.


Adults take one to two capsules no more than 15 minutes before the consumption of histamine-rich foods. Children take one capsule no more than 15 minutes before the consumption of histamine-rich foods or take as directed by your heallhcare practitioner. 

As a daily maintenance support product, take 2 capsules in AM and 2 capsules in PM.


60 caps

Storage Instructions

Store in a cool, dark place out of reach of children


Food supplements should not be used as a substitute for a varied diet. If you are taking prescribed medication, have any medical condition or are pregnant or breast-feeding please consult your healthcare practitioner before taking food supplements.

Supplement Facts
Serving Size: 2 Veggie Capsules
Servings Per Container: 30
Amount Per Serving %DV
Vitamin C (as ascorbic acid) 200 mcg 333%
N Acetyl Cysteine 100 mg *
Porcine Kidney powder 300 mg *
Alpha Lipoic Acid 100 mg *
Stinging Nettle Extract 200 mg *
Bromelain 100 mg *
* Daily Value not established

To Download Product Info Card CLICK HERE

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