OnePin Peptide Library · Metabolic
Calcium D-Glucarate
D-Glucarate · CDG
Calcium D-Glucarate (CDG) is the calcium salt of D-glucaric acid, a naturally occurring molecule found in small amounts in fruits and vegetables (apples, grapefruit, cruciferous vegetables, sprouts). After oral ingestion, CDG releases D-glucaric acid which is converted to D-glucaro-1,4-lactone - the biologically active form responsible for its effects.,CDG's key mechanism is inhibition of beta-glucuronidase, an enzyme produced by gut bacteria (especially in dysbiotic guts) that 'deconjugates' molecules that the liver has marked for excretion via glucuronidation. Without beta-glucuronidase activity, conjugated estrogens, toxins, hormones, and xenobiotics excreted in bile are properly eliminated in stool. With elevated beta-glucuronidase activity, these compounds get deconjugated in the gut and reabsorbed (enterohepatic recirculation), increasing systemic exposure.,CDG is most commonly used for estrogen clearance support (often paired with DIM), hormonal cancer risk reduction, detoxification protocols, and constipation-associated estrogen reabsorption. The classic use is in women's health (PMS, fibroids, breast health, estrogen dominance) and in men on TRT or for prostate health. Animal studies show cancer chemoprevention; human trials are limited but mechanistic basis is well-established.
Can be taken with or without food. Split dosing (3x daily) maintains steady beta-glucuronidase inhibition. Often paired with DIM for comprehensive estrogen management. Take separate from medications that should not have enhanced clearance.
Start here. Every protocol below is ordered lowest-first. Begin at the smallest effective dose, hold about a week to assess tolerance, and step up only if needed.
How it works
After oral ingestion, CDG releases D-glucaric acid which is metabolized to D-glucaro-1,4-lactone (GL). GL is the biologically active inhibitor of beta-glucuronidase enzyme.,Beta-glucuronidase is produced primarily by gut bacteria (E. coli, Clostridium, Bacteroides) and to a lesser extent by host tissues. Elevated beta-glucuronidase activity is common in dysbiosis, constipation, high-meat diets, and certain disease states.,When the liver detoxifies estrogens and other compounds, it conjugates them with glucuronic acid (Phase II glucuronidation), making them water-soluble for biliary excretion. These conjugates pass into the gut for elimination. If beta-glucuronidase activity is high, the glucuronide bond is cleaved in the gut, releasing free (unconjugated) estrogen/toxin which can be reabsorbed across the intestinal wall back into circulation - the 'enterohepatic recirculation' pathway.,By inhibiting beta-glucuronidase, CDG/GL keeps conjugated estrogens and toxins LOCKED in their glucuronide form, ensuring they pass through the gut and are eliminated in stool rather than reabsorbed. This effectively increases the elimination of estrogens, xenobiotics, and bile acids.,CDG also induces hepatic Phase II UGT (UDP-glucuronosyltransferase) enzymes, increasing the rate at which the liver conjugates compounds for excretion - working synergistically with the beta-glucuronidase inhibition.,Cancer chemoprevention: animal models of mammary, colon, and skin carcinogenesis show CDG reduces tumor formation, attributed to enhanced clearance of carcinogens and pro-carcinogens before they damage DNA.
After oral ingestion, CDG releases D-glucaric acid which is metabolized to D-glucaro-1,4-lactone (GL). GL is the biologically active inhibitor of beta-glucuronidase enzyme.,Beta-glucuronidase is produced primarily by gut bacteria (E. coli, Clostridium, Bacteroides) and to a lesser extent by host tissues. Elevated beta-glucuronidase activity is common in dysbiosis, constipation, high-meat diets, and certain disease states.,When the liver detoxifies estrogens and other compounds, it conjugates them with glucuronic acid (Phase II glucuronidation), making them water-soluble for biliary excretion. These conjugates pass into the gut for elimination. If beta-glucuronidase activity is high, the glucuronide bond is cleaved in the gut, releasing free (unconjugated) estrogen/toxin which can be reabsorbed across the intestinal wall back into circulation - the 'enterohepatic recirculation' pathway.,By inhibiting beta-glucuronidase, CDG/GL keeps conjugated estrogens and toxins LOCKED in their glucuronide form, ensuring they pass through the gut and are eliminated in stool rather than reabsorbed. This effectively increases the elimination of estrogens, xenobiotics, and bile acids.,CDG also induces hepatic Phase II UGT (UDP-glucuronosyltransferase) enzymes, increasing the rate at which the liver conjugates compounds for excretion - working synergistically with the beta-glucuronidase inhibition.,Cancer chemoprevention: animal models of mammary, colon, and skin carcinogenesis show CDG reduces tumor formation, attributed to enhanced clearance of carcinogens and pro-carcinogens before they damage DNA.
What to expect
Weeks 1-2: Initial gut and excretion changes.
Evidence
Interactions & stacking
What's safe to combine, and what belongs in a separate pin.
Safe & synergistic
Keep separate
Pharmacokinetics
Storage. Store at room temperature (20-25C) in a cool, dry place. Protect from moisture. Capsules and tablets shelf-stable 2+ years.
Regulatory status
Classified as a dietary supplement in the US - no prescription required. Widely available. No FDA-approved medical indication.
Put it to work
Calculate, log & track
Open Calcium D-Glucarate straight into OnePin with your vial and dose pre-filled, then let it handle the syringe math and remind you before the vial runs out.
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The guide & community
The complete Calcium D-Glucarate walkthrough, real protocol discussion and coaching live inside the BlessUp community on Skool.
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