Alpha Lipoic Acid (ALA) vs Saw Palmetto (Serenoa repens)

Mechanism

ALA is a dithiol compound that functions as a cofactor for mitochondrial alpha-keto acid dehydrogenases (pyruvate dehydrogenase, alpha-ketoglutarate dehydrogenase). Both ALA and its reduced form DHLA are potent antioxidants capable of regenerating other antioxidants including vitamin C, vitamin E, and glutathione. ALA activates AMPK, improving glucose uptake via GLUT4 translocation, and modulates NF-kB-mediated inflammatory signaling. It chelates redox-active metals (Fe2+, Cu2+).

Standard Dosing

300-600mg R-ALA daily

Timing

On empty stomach, 30-60 min before meals. Split doses for higher amounts.

Cycle Duration

ongoing or cycle 12 weeks on, 4 weeks off

Side Effects

• GI upset/nausea
• Skin rash
• Hypoglycemia symptoms
• Body odor changes

Contraindications

• Thiamine (B1) deficiency (ALA increases thiamine demand)
• Hypoglycemia-prone individuals without monitoring
• Autoimmune thyroid conditions (monitor thyroid function)

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Mechanism

Saw palmetto berry extract contains fatty acids (lauric acid, oleic acid, myristic acid) and phytosterols (beta-sitosterol) that inhibit both isoforms of 5-alpha-reductase (types I and II), reducing conversion of testosterone to dihydrotestosterone (DHT). It also exhibits anti-androgenic activity by competing with DHT at androgen receptor binding sites. Additional mechanisms include: inhibition of cyclooxygenase and 5-lipoxygenase (anti-inflammatory in prostate tissue), induction of apoptosis in prostate epithelial cells, and relaxation of bladder smooth muscle via alpha-1 adrenergic receptor antagonism.

Standard Dosing

320mg daily (standardized to 85-95% fatty acids and sterols)

Timing

With food (fat-soluble lipophilic extract). Morning or evening.

Cycle Duration

Minimum 3 months to assess response; ongoing for maintenance

Side Effects

• Mild GI discomfort
• Headache
• Dizziness
• Rare: erectile dysfunction (DHT reduction)
• Rare: liver injury (case reports)

Contraindications

• Pregnancy (anti-androgenic — teratogenic potential for male fetus)
• Hormone-sensitive conditions (complex hormone modulation)
• Children

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