Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Berberine | DHEA (Dehydroepiandrosterone) | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | 500mg 2-3x daily (1000-1500mg total) | 25-50mg daily (men); 10-25mg daily (women) |
| Timing | With meals or immediately before meals (reduces postprandial glucose spike). Must be taken with food. | Morning (mimics natural circadian peak). With food. |
| Cycle Duration | Cycle 8-12 weeks on, 4 weeks off (or continuous under practitioner supervision) | Ongoing under supervision with regular blood monitoring (DHEA-S, testosterone, estradiol, PSA in men) |
| Evidence Level | strong_human | moderate_human |
Berberine activates AMP-activated protein kinase (AMPK), the master metabolic sensor, mimicking many effects of caloric restriction and exercise. It inhibits mitochondrial Complex I, increasing the AMP:ATP ratio which triggers AMPK. Downstream effects include enhanced GLUT4 translocation (glucose uptake), inhibition of HMG-CoA reductase (cholesterol synthesis), upregulation of LDL receptor expression, and suppression of PCSK9. It also modulates gut microbiome composition, increasing short-chain fatty acid-producing bacteria.
500mg 2-3x daily (1000-1500mg total)
With meals or immediately before meals (reduces postprandial glucose spike). Must be taken with food.
Cycle 8-12 weeks on, 4 weeks off (or continuous under practitioner supervision)
DHEA is the most abundant circulating steroid hormone, produced primarily by the adrenal zona reticularis. It serves as a precursor for both androgens (testosterone, DHT via 3beta-HSD and 17beta-HSD) and estrogens (estradiol, estrone via aromatase). DHEA-S (sulfated form) acts as a neurosteroid, positively modulating NMDA receptors and antagonizing GABA-A receptors (cognitive enhancement/alertness). It also modulates immune function (enhances Th1 immunity, IL-2 production), supports bone mineral density via estrogenic metabolites, enhances insulin sensitivity via PPAR-alpha activation, and opposes cortisol's catabolic effects (DHEA:cortisol ratio is a stress/aging biomarker).
25-50mg daily (men); 10-25mg daily (women)
Morning (mimics natural circadian peak). With food.
Ongoing under supervision with regular blood monitoring (DHEA-S, testosterone, estradiol, PSA in men)
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