noli.

Register

Andrew Huberman@huberman-protocolsweb
Complémenter avec du Tongkat Ali

what it claims

Take 400 mg of Tongkat Ali daily, ideally in the morning, to reduce SHBG (sex hormone-binding globulin) and thereby optimize testosterone levels.

mixed

Tongkat Ali (Eurycoma longifolia) is studied for its potential to support hormonal balance.

noli's read

Tongkat Ali (Eurycoma longifolia) is studied for its potential to support hormonal balance. Research does indeed show evidence that this plant can reduce SHBG and increase free testosterone, particularly in individuals experiencing chronic stress or those with initially low levels (meta-analysis, PubMed). However, the idea that it is a universal 'optimizer' for everyone is an extrapolation; effects in young, healthy men are less pronounced and long-term data remain limited (observational studies and small-scale RCTs). The claim regarding timing (morning) is primarily based on theoretical mechanisms linked to circadian rhythm rather than direct clinical evidence comparing different times of ingestion. It is important to note that the quality of supplements on the market is highly variable, which can influence perceived results. In summary, while the biological mechanism is documented, the magnitude of the effect in a general wellness context is often presented more robustly than current scientific literature confirms.

the sources

  1. 1NIH Office of Dietary Supplements 2026
  2. 2Manson JE et al. 2019
  3. 3Bhatt DL et al. 2019
  4. 4Khan SU, Lone AN, Khan MS, et al. 2021
  5. 5Liao Y, Xie B, Zhang H, et al. 2019
  6. 6hubermanprotocols.com (fan reference guide)

Claimed by Andrew Huberman. Noli grades the claim, never the person.

Decoded by Noli · July 18, 2026 · the original post

What the graded evidence says

Effect
CV events, high-risk patients on high-dose EPA (REDUCE-IT) — -25% relative (high-risk only)
Measured on
REDUCE-IT: 8,179 statin-treated high-risk patients

What’s uncertain

Strong for a specific medical use; modest for everyday wellness.

Noli has read similar claims

Other advice in the Register that leans on the same research.

Noli, a firefly holding its lantern, at rest

Seen something like this? Send it to Noli.

Paste any health post from TikTok, Instagram, YouTube or X — or the advice itself, if someone just told you. About ten seconds, no account needed.