Pentadecanoic Acid (C15:0 / Fatty15) vs Serrapeptase

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

Pentadecanoic Acid (C15:0 / Fatty15)Serrapeptase
CategorySupplementsSupplements
Standard Dose120,000-240,000 SPU (serratiopeptidase units) daily
TimingOn empty stomach (critical — food proteins will be digested instead of systemic absorption). 30+ minutes before meals or 2 hours after.
Cycle DurationCycle 4-8 weeks on, 2-4 weeks off
Evidence LevelEmergingmoderate_human

Mechanism

Odd-chain saturated fatty acid identified as essential. Strengthens cell membranes by integrating into phospholipid bilayer, activates AMPK and PPAR-alpha/delta, and inhibits mTOR. Repairs mitochondrial function. Epidemiologically associated with reduced cardiometabolic disease.

Contraindications

  • None established
B

Serrapeptase

Supplements

Mechanism

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.

Standard Dosing

120,000-240,000 SPU (serratiopeptidase units) daily

Timing

On empty stomach (critical — food proteins will be digested instead of systemic absorption). 30+ minutes before meals or 2 hours after.

Cycle Duration

Cycle 4-8 weeks on, 2-4 weeks off

Side Effects

  • GI discomfort
  • Nausea
  • Skin rash (rare)
  • Muscle/joint pain (rare)
  • Pneumonitis (very rare, case reports)

Contraindications

  • Bleeding disorders
  • Scheduled surgery (discontinue 2 weeks prior)
  • Concurrent anticoagulant therapy
  • Active peptic ulcers
  • Active bleeding
  • Pre-surgery
  • Blood clotting disorders

Best Stacking Partners

NattokinaseNACBromelainCurcumin

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