Calcium D-Glucarate

Calcium D-Glucarate™ is a patented, single-ingredient formula providing 1,000 mg of calcium D-glucarate per serving — a form of glucaric acid that supports the body's endogenous detoxification pathways, with particular relevance to hepatic phase II detoxification and the elimination of steroid hormones, environmental toxicants, and other lipophilic compounds.

The core mechanism of action centres on glucuronidation — one of the liver's primary phase II detoxification pathways, in which toxic endogenous and exogenous compounds are conjugated to glucuronic acid, rendering them water-soluble for elimination via bile and urine. This process is regulated in part by the enzyme beta-glucuronidase, which is naturally present in various organs, cells, and intestinal bacteria. Elevated beta-glucuronidase activity can deconjugate these bound compounds before they are excreted, allowing them to be reabsorbed and recirculated — including oestrogens, bile acids, and environmental xenobiotics. D-glucarate has been shown to inhibit beta-glucuronidase activity, thereby supporting more complete elimination of these compounds through normal detoxification channels.

This mechanism has attracted significant research interest. D-glucarate has been studied by researchers at the University of Texas M.D. Anderson Cancer Center, Memorial Sloan-Kettering Cancer Center, the AMC Cancer Centre in Colorado, and Ohio State University, with investigations examining its role in supporting cellular health in tissues including the liver, prostate, lungs, breast, and colon. Additionally, animal research suggests a potential role for D-glucarate in supporting healthy lipid metabolism.

Pure Encapsulations uses a patented form of calcium D-glucarate licensed from Applied Food Sciences, Inc. (U.S. Patent 7,662,863), ensuring a consistently high-quality, well-characterised raw material. The formula contains no fillers, binders, or excipients beyond the vegetarian capsule — making it one of the cleaner single-ingredient detoxification products available at a practitioner level.

Pure Encapsulations products are manufactured to hypoallergenic standards and are free from gluten, dairy, soy, GMOs, artificial colours, flavours, and unnecessary binders or fillers.

What Sets This Product Apart

Calcium D-Glucarate is a relatively specialised ingredient not widely found in mainstream supplement ranges, and the quality of raw material matters considerably. Pure Encapsulations uses a patented, independently licensed form of calcium D-glucarate with a documented research history, distinguishing it from uncharacterised bulk D-glucarate ingredients used in some lower-cost products. The formula's complete absence of excipients also makes it well-suited to patients with chemical sensitivities or complex supplement protocols where additive load is a clinical consideration.

Supplement Facts

Serving Size: 2 capsules Servings Per Container: 30 (60 capsules) or 60 (120 capsules)

Other Ingredients: Vegetarian capsule (cellulose, water).

Directions for Use

Adults: Take 2 capsules, 1–3 times daily with meals, or as directed by your healthcare practitioner.

Allergen Information

Free from gluten, wheat, dairy, soy, corn, eggs, tree nuts, peanuts, artificial colours, artificial flavours, sweeteners, coatings, shellacs, and GMO ingredients. Contains no unnecessary binders, fillers, or preservatives.

Cautions: Not recommended during pregnancy or lactation without professional supervision. Many pharmaceutical drugs are metabolised in the liver via glucuronidation. Calcium D-glucarate may theoretically increase the elimination rate of certain medications and hormones, potentially reducing their efficacy. If you are taking prescription medications — including hormonal contraceptives, hormone replacement therapy, or other hepatically metabolised drugs — consult your healthcare practitioner before use. Keep out of reach of children.

Practitioner Note

Recommended by Stephen Roigard, Naturopath & Clinical Nutritionist. Calcium D-Glucarate is particularly relevant in clinical presentations involving oestrogen dominance, impaired hepatic detoxification, or elevated beta-glucuronidase activity (the latter measurable via functional stool testing). It is commonly indicated in naturopathic protocols addressing hormonal dysregulation, liver support, or as an adjunct in integrative oncology support under practitioner supervision. The drug interaction caution above — while not representing a contraindication in most cases — is clinically meaningful and warrants explicit discussion with patients on HRT, OCP, or hepatically metabolised medications. Dosing flexibility (1–6 capsules daily in divided doses with meals) allows for individualised therapeutic titration.

This product is a dietary supplement intended to support general health and well-being. It is not intended to diagnose, treat, cure, or prevent any medical condition. This product has not been evaluated by Medsafe. If symptoms persist or worsen, consult a qualified healthcare practitioner.