Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Calcium D-Glucarate | Dihydroberberine (GlucoVantage) | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | 500-1500mg daily | — |
| Timing | With meals, split 2-3x/day for sustained beta-glucuronidase inhibition. | — |
| Cycle Duration | ongoing or cycle with DIM protocol | — |
| Evidence Level | moderate_human | Moderate |
Calcium D-glucarate is the calcium salt of D-glucaric acid, which is metabolized to D-glucaro-1,4-lactone (the active metabolite). This lactone inhibits beta-glucuronidase, the bacterial enzyme in the gut that deconjugates (cleaves) glucuronide conjugates from Phase II detoxification. By inhibiting beta-glucuronidase, calcium D-glucarate prevents the reabsorption (enterohepatic recirculation) of estrogen, environmental toxins, and carcinogens that were already conjugated for excretion. This effectively enhances the elimination of glucuronidated compounds, including estrogen metabolites, bilirubin, and xenobiotics.
500-1500mg daily
With meals, split 2-3x/day for sustained beta-glucuronidase inhibition.
ongoing or cycle with DIM protocol
Active metabolite of berberine with 5x greater absorption. AMPK activator that improves insulin sensitivity, reduces hepatic glucose production, and modulates gut microbiome. More bioavailable form allows lower dosing with fewer GI side effects.
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