Supplements for testosterone

7 compounds relevant to testosterone, ranked by overall evidence grade.

Overall grade: Grade B
Last revised: Jul 10, 2026; 7
graded outcomes: 0
references listed

Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.

1 at grade B · 4 at grade C · 2 at grade D — 7 graded rows

What is known

Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.

Outcome	Grade	Effect size	Agreement
ZincAn immune and hormone cofactor that shortens colds when dosed right — and drains copper when overdone.	Evidence grade B	Unclear	mixed
BoronA cheap ultra-trace mineral that nudges free testosterone, vitamin D, and inflammation markers — small, real, honest C.	Evidence grade C	Unclear	mixed
Tongkat AliThe testosterone-support herb with the least-bad evidence — modest free-T and stress signals, best in the stressed or older.	Evidence grade C	Unclear	mixed
FenugreekA libido herb with reasonable sexual-function data and inconsistent testosterone claims — the effect people feel is desire, not androgens.	Evidence grade C	Unclear	mixed
ShilajitA mineral-rich Himalayan resin with early testosterone and fatigue signals — promising, small-trial, and quality-dependent.	Evidence grade C	Unclear	mixed
Fadogia AgrestisA trendy testosterone herb with essentially zero human data and animal toxicity signals — not worth the risk.	Evidence grade D	Unclear	mixed
Tribulus TerrestrisA staple 'testosterone booster' that reliably does not raise testosterone — some libido effect at most.	Evidence grade D	Unclear	mixed

ZincEvidence grade B
An immune and hormone cofactor that shortens colds when dosed right — and drains copper when overdone.
Unclearmixed
BoronEvidence grade C
A cheap ultra-trace mineral that nudges free testosterone, vitamin D, and inflammation markers — small, real, honest C.
Unclearmixed
Tongkat AliEvidence grade C
The testosterone-support herb with the least-bad evidence — modest free-T and stress signals, best in the stressed or older.
Unclearmixed
FenugreekEvidence grade C
A libido herb with reasonable sexual-function data and inconsistent testosterone claims — the effect people feel is desire, not androgens.
Unclearmixed
ShilajitEvidence grade C
A mineral-rich Himalayan resin with early testosterone and fatigue signals — promising, small-trial, and quality-dependent.
Unclearmixed
Fadogia AgrestisEvidence grade D
A trendy testosterone herb with essentially zero human data and animal toxicity signals — not worth the risk.
Unclearmixed
Tribulus TerrestrisEvidence grade D
A staple 'testosterone booster' that reliably does not raise testosterone — some libido effect at most.
Unclearmixed

What is uncertain

Read off the same rows as above. Nothing here is added that the entry does not itself record.

Thin evidence: Boron (grade C); Tongkat Ali (grade C); Fenugreek (grade C); Shilajit (grade C); Fadogia Agrestis (grade D); Tribulus Terrestris (grade D).
Studies disagree: Zinc (mixed agreement).

The evidence in words

The shortlist

Every compound in the knowledge base tagged to testosterone, ordered by how strong its overall evidence is. Start at the top; the grade is the honest filter.

Worth considering first

Zinc (B) — An immune and hormone cofactor that shortens colds when dosed right — and drains copper when overdone.

Lower-evidence options

Boron (C) — A cheap ultra-trace mineral that nudges free testosterone, vitamin D, and inflammation markers — small, real, honest C. · Tongkat Ali (C) — The testosterone-support herb with the least-bad evidence — modest free-T and stress signals, best in the stressed or older. · Fenugreek (C) — A libido herb with reasonable sexual-function data and inconsistent testosterone claims — the effect people feel is desire, not androgens. · Shilajit (C) — A mineral-rich Himalayan resin with early testosterone and fatigue signals — promising, small-trial, and quality-dependent. · Fadogia Agrestis (D) — A trendy testosterone herb with essentially zero human data and animal toxicity signals — not worth the risk. · Tribulus Terrestris (D) — A staple 'testosterone booster' that reliably does not raise testosterone — some libido effect at most.

Goes with

ZincGrade BEvidence grade B
BoronGrade CEvidence grade C
Tongkat AliGrade CEvidence grade C
FenugreekGrade CEvidence grade C
ShilajitGrade CEvidence grade C
Fadogia AgrestisGrade DEvidence grade D
Tribulus TerrestrisGrade DEvidence grade D

Entries that share this one's tags or conditions.

Fenugreek for TestosteroneEvidence grade C — InconsistentEvidence grade C
Tribulus Terrestris for TestosteroneEvidence grade D — No increaseEvidence grade D
Boron for Free testosteroneEvidence grade C — Via lower SHBGEvidence grade C
Boron for Inflammatory markersEvidence grade C — hs-CRP reductions reportedEvidence grade C

Sources

This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.

Last revised Jul 10, 2026. A grade is this entry's reading of the evidence, not medical advice.