Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| DIM (Diindolylmethane) | Serrapeptase | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | 100-200mg DIM daily | 120,000-240,000 SPU (serratiopeptidase units) daily |
| Timing | With meals (fat enhances absorption). Consistent daily dosing for estrogen metabolism modulation. | On empty stomach (critical — food proteins will be digested instead of systemic absorption). 30+ minutes before meals or 2 hours after. |
| Cycle Duration | ongoing or cycle 8-12 weeks on, 4 weeks off | Cycle 4-8 weeks on, 2-4 weeks off |
| Evidence Level | moderate_human | moderate_human |
DIM is formed from indole-3-carbinol (I3C, from cruciferous vegetables) via acid condensation in the stomach. It modulates estrogen metabolism by promoting the 2-hydroxylation pathway (producing 2-hydroxyestrone, considered 'protective' estrogen) over the 16alpha-hydroxylation pathway (producing 16alpha-hydroxyestrone, considered proliferative) and the 4-hydroxylation pathway (producing 4-hydroxyestrone, genotoxic). DIM binds the aryl hydrocarbon receptor (AhR), inducing Phase I (CYP1A1, CYP1A2) and Phase II enzymes that facilitate estrogen detoxification. It also inhibits aromatase and has anti-androgen receptor effects (competitive binding).
100-200mg DIM daily
With meals (fat enhances absorption). Consistent daily dosing for estrogen metabolism modulation.
ongoing or cycle 8-12 weeks on, 4 weeks off
Serrapeptase (serratiopeptidase) is a proteolytic enzyme originally isolated from the gut of the silkworm (Serratia marcescens). It hydrolyzes non-living tissue including fibrin, blood clots, cysts, and arterial plaque while sparing living tissue. It reduces bradykinin and other pain-mediating amines, provides anti-inflammatory effects by reducing neutrophil infiltration, and thins mucus by cleaving glycoprotein structures. It may also enhance antibiotic penetration into biofilms.
120,000-240,000 SPU (serratiopeptidase units) daily
On empty stomach (critical — food proteins will be digested instead of systemic absorption). 30+ minutes before meals or 2 hours after.
Cycle 4-8 weeks on, 2-4 weeks off
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