Quercetin vs R-Alpha Lipoic Acid

Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.

QuercetinR-Alpha Lipoic Acid
CategorySupplementsSupplements
Standard Dose500-1000mg daily
TimingWith meals for absorption. For senolytic effect: 3-day pulse monthly on empty stomach.
Cycle Durationongoing for general use; pulsed monthly for senolytic protocols
Evidence Levelmoderate_humanModerate
A

Quercetin

Supplements

Mechanism

Quercetin is a flavonoid that inhibits mast cell degranulation and histamine release, functions as a potent senolytic (selectively clearing senescent cells) when combined with dasatinib or fisetin, and activates AMPK and SIRT1 pathways. It inhibits PI3K/Akt/mTOR signaling, suppresses NF-kB, and modulates JAK-STAT inflammatory cascades. As a zinc ionophore, it facilitates zinc entry into cells, which may inhibit viral RNA-dependent RNA polymerase.

Standard Dosing

500-1000mg daily

Timing

With meals for absorption. For senolytic effect: 3-day pulse monthly on empty stomach.

Cycle Duration

ongoing for general use; pulsed monthly for senolytic protocols

Side Effects

  • Headache
  • Mild GI upset
  • Tingling extremities at high doses
  • Rare: kidney toxicity at very high doses

Contraindications

  • Pregnancy/lactation at high doses
  • Concurrent cyclosporine therapy

Best Stacking Partners

ZincVitamin CBromelain (enhances absorption)FisetinEGCG

Mechanism

Redox-active cofactor that supports mitochondrial dehydrogenase complexes, glutathione recycling, and glucose disposal.

Contraindications

  • Monitor in clients prone to hypoglycemia

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