Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Calcium D-Glucarate | Melatonin | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | 500-1500mg daily | 0.3-1mg for sleep onset (physiological); 3-5mg for jet lag; 10-20mg for oncological adjunct (under supervision) |
| Timing | With meals, split 2-3x/day for sustained beta-glucuronidase inhibition. | 30-60 minutes before desired sleep onset. For circadian phase advance: 4-6 hours before desired bedtime. Sublingual for faster onset. Dim lights 1-2 hours before taking. |
| Cycle Duration | ongoing or cycle with DIM protocol | Short-term for jet lag (3-5 days); ongoing at low dose for circadian support if needed; extended for oncological use under supervision |
| Evidence Level | moderate_human | strong_human |
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
Melatonin (N-acetyl-5-methoxytryptamine) is synthesized from serotonin in the pineal gland, regulated by the suprachiasmatic nucleus (SCN) via the retinohypothalamic tract. It binds MT1 and MT2 G-protein coupled receptors: MT1 activation suppresses neuronal firing in the SCN (sleep onset), while MT2 modulates circadian phase shifting. Beyond sleep, melatonin is a potent antioxidant that scavenges hydroxyl radicals, peroxynitrite, and singlet oxygen, and upregulates antioxidant enzymes (GPx, SOD, catalase) via Nrf2. It has anti-inflammatory properties (NF-kB suppression), immunomodulatory effects, oncostatic activity (anti-proliferative in several cancer types), and mitochondrial protective functions.
0.3-1mg for sleep onset (physiological); 3-5mg for jet lag; 10-20mg for oncological adjunct (under supervision)
30-60 minutes before desired sleep onset. For circadian phase advance: 4-6 hours before desired bedtime. Sublingual for faster onset. Dim lights 1-2 hours before taking.
Short-term for jet lag (3-5 days); ongoing at low dose for circadian support if needed; extended for oncological use under supervision
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