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Tongkat Ali (Fertility)

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Tongkat Ali (Fertility). Standardized eurycomanone extract for sperm quality.

How it works. Reduces SHBG-bound testosterone; modulates Leydig cell steroidogenesis.

What the research supports. 1 graded claims. Strongest: Improves sperm parameters in subfertile men (moderate).

How much to take. Typical dose: 200 mg standardized.

Side effects and interactions. 1 medication interaction listed. No serious side effects listed at normal doses.

Stacking. Pairs well with A high-quality multivitamin, Omega-3 (EPA/DHA).

Common forms. Available as Standardized extract capsule, Liquid tincture (alcohol or glycerin), Powdered whole herb, Traditional decoction or tea.

Key studies. 8 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried Tongkat Ali (Fertility). Anecdotes are not medical advice.

Tongkat Ali (Fertility). Standardized eurycomanone extract for sperm quality.

Key compound: eurycomanoneC20H24O9 · 408.4 g/mol

What it is

Standardized eurycomanone extract for sperm quality.

Food sources

Whole dried plant material (root, leaf, flower, or aerial parts depending on the species)Standardized hydroethanolic or aqueous extract (capsule, tincture, or tea)Powdered traditional preparation used in Ayurvedic, TCM, or Western herbal practice

Goals

Male FertilityLibido & Sexual Health

How it works

Reduces SHBG-bound testosterone; modulates Leydig cell steroidogenesis.

Pathways

  • Reduces SHBG-bound testosterone
  • modulates Leydig cell steroidogenesis

Effects

  • +sperm parameters in subfertile men supports

What the research supports

Improves sperm parameters in subfertile menmoderate

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
200 mg standardized
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodMorning
Best formMost evidence is based on the standardized extract capsule form.
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Side effects & interactions

Common side effects

  • Insomnia if late

Medication interactions

Prescription medications (general)minor

Always disclose Tongkat Ali (Fertility) use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • A high-quality multivitaminCovers micronutrient cofactors that support most supplement pathways.
  • Omega-3 (EPA/DHA)Foundational anti-inflammatory support that complements most regimens.

Common forms

  • Standardized extract capsule
  • Liquid tincture (alcohol or glycerin)
  • Powdered whole herb
  • Traditional decoction or tea

Key studies

8 studies cited in total.

PubMed: Tongkat Ali (Fertility) — Improves sperm parameters in subfertile men ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Tongkat Ali (Fertility) and "Improves sperm parameters in subfertile men". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Tongkat Ali (Fertility) — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Tongkat Ali (Fertility) and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Tongkat Ali (Fertility) — meta-analysis ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Tongkat Ali (Fertility) and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

Discussion

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