Calcium D-Glucarate: Uses, Benefits, Dosage & Safety

Last updated: June 2026 · Reviewed by the FactoWiki Editorial Team for clarity and source accuracy

What is Calcium D-Glucarate?

Calcium D-glucarate is the calcium salt of D-glucaric acid, a compound found in fruits and vegetables. It's sold for 'estrogen detox', hormone balance and supporting the liver's clearance of toxins, often alongside DIM.

What Calcium D-Glucarate is commonly used for

In supplements, Calcium D-Glucarate is most often included for thyroid & hormone balance support. It is used as nutritional support, not as a treatment for any medical condition — the distinction matters, because the claims on a sales page are often stronger than the evidence allows.

How Calcium D-Glucarate works

In the gut, an enzyme called beta-glucuronidase can 'un-package' substances the liver had prepared for excretion (including estrogen and some toxins), letting them be reabsorbed. Calcium D-glucarate inhibits this enzyme, theoretically helping the body eliminate those substances rather than recycle them.

What the evidence says

Here's an honest snapshot of what published research suggests about Calcium D-Glucarate — including where the evidence is limited.

• The beta-glucuronidase mechanism is well described in laboratory and animal studies. (PubMed research)
• Human clinical evidence that calcium D-glucarate meaningfully lowers estrogen or improves health outcomes is limited. (PubMed research)

Typical dosage used in studies

Supplements commonly provide roughly 500-1,500 mg/day; study doses vary. This is research information for context, not a recommendation — confirm what's appropriate for you with a healthcare professional.

Side effects and safety

Generally well tolerated; limited long-term human safety data.

Medication interactions and who should avoid Calcium D-Glucarate

Sources & further reading

The summary above is drawn from peer-reviewed research and authoritative references. For general, authoritative background you can also consult:

• PubMed research on Calcium D-Glucarate
• NIH Office of Dietary Supplements
• NIH National Center for Complementary and Integrative Health
• MedlinePlus (U.S. National Library of Medicine)

Frequently asked questions

What does calcium D-glucarate do?

It inhibits an enzyme (beta-glucuronidase) that recycles estrogen and some toxins, supporting their clearance.

Does it lower estrogen?

The mechanism is plausible, but human evidence for meaningfully lowering estrogen is limited.

Is it safe?

Generally well tolerated; long-term human data are limited.

Is it the same as calcium supplementation?

No — it's used for its glucarate component, not as a calcium source.