health
Increased Growth Hormone Release
Increased Growth Hormone Release refers to a rise in growth hormone levels after an intervention or exposure. It describes a hormone response, not a specific sensation, symptom, or guaranteed visible change.
Explore the health context of Increased Growth Hormone Release and how it fits into a broader wellness reference.
These are research findings, not promises. Most options have little evidence, and results differ from person to person.
What may help
None of these options has good evidence yet. Best evidence first.
7 options:3 not enough evidence3 not tested in people1 no benefit found
MassagepracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit. Strongest study: a pooled analysis of several trials.
In children with FD, a pooled analysis whose designs were not recorded found higher GHRP levels when therapeutic massage was combined with conventional therapy; 522 people were included in this outcome’s analysis.
Open the Massage pageHot BathpracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit. Strongest study: a randomized controlled trial.
In a randomized trial of 10 healthy people, plasma growth hormone concentrations rose 10.7-fold directly following hot-water immersion. The measurement was taken immediately after immersion.
Open the Hot Bath pageInfrared SaunapracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit. Strongest study: a randomized controlled trial.
In a randomized trial of 10 healthy participants, serum growth hormone increased after both Infrared Sauna and traditional sauna, with the highest levels after sauna and at 30 min of recovery.
Open the Infrared Sauna pageFastingpracticeNot tested in people
Only tested in animals, cells or theory. Results like these often do not carry over to people.
The one study found a benefit.
A fasting-related rise in growth hormone secretion has been described, with roughly a 5-fold rise
Open the Fasting pageFinnish SaunapracticeNot tested in people
Only tested in animals, cells or theory. Results like these often do not carry over to people.
The one study found a benefit.
An expert-knowledge claim describes acute sauna exposure as increasing growth hormone levels by up to 2–5 fold, especially with repeated sessions and proper hydration.
Open the Finnish Sauna pageIce Bath / Cold PlungepracticeNot tested in people
Only tested in animals, cells or theory. Results like these often do not carry over to people.
The one study found a benefit.
Acute cold-water immersion, especially when a large surface area is exposed, is described as triggering a temporary increase in growth hormone secretion through sympathetic activation and cold-induced thermogenesis.
Open the Ice Bath / Cold Plunge pageHigh-Intensity Interval Training (HIIT)practiceNo benefit found
Studies looked for a benefit and did not find one.
The one study found no benefit. Strongest study: a systematic review of studies.
A 2025 systematic review did not find definitive results for changes in IGF-1, irisin, cortisol, or interleukin levels; it does not establish an increase in growth hormone release.
Open the High-Intensity Interval Training (HIIT) page
The expert view shows every study, dose protocol and source.
What may help
Linked to improving it7 listedStart here
The best we have, but the evidence is still weak
- →PracticesMassageCertaintyLowSourceRCT1 other source
In children with FD, a pooled analysis whose designs were not recorded found higher GHRP levels when therapeutic massage was combined with conventional therapy (MD = 7.96; 95% CI 5.90 to 10.01, I² = 0%, P < 0.001); 522 people were included in this outcome’s analysis.
Who was studied
- People with a condition
Open MassageStudy result
Therapeutic massage combined with conventional therapy significantly elevated GHRP levels in children with FD (MD = 7.96; 95% CI 5.90 to 10.01, I² = 0%, P < 0.001)
- →PracticesHot BathCertaintyLowSourceClinical1 other source
In a randomized trial of 10 healthy people, plasma growth hormone concentrations rose 10.7-fold directly following hot-water immersion. The measurement was taken immediately after immersion.
Who was studied
- Healthy people
Open Hot BathStudy result
Directly following HWI, plasma average adrenaline and growth hormone concentrations increased 2.7 and 10.7‐fold, respectively (P < 0.001)
- →PracticesInfrared SaunaCertaintyLowSourceClinical1 other source
In a randomized trial of 10 healthy participants, serum growth hormone increased after both Infrared Sauna and traditional sauna, with the highest levels after sauna and at 30 min of recovery.
Who was studied
- Healthy people
Open Infrared SaunaStudy result
Serum growth hormone increased in both FIRS and in TRAD and was highest (p < 0.05) after sauna and at 30 min of recovery.
- →PracticesFastingCertaintyLowSourceTheoretical1 other source
A fasting-related rise in growth hormone secretion has been described, with roughly a 5-fold rise
Open FastingStudy result
Fasting raises growth hormone secretion in humans, with roughly a 5-fold rise in 24h GH secretion after 2 days of fasting. It is thought to help preserve lean mass during energy deficit, but the clinical effect of repeated shorter fasts is less clear.
- →PracticesFinnish SaunaCertaintyLowSourceTheoretical1 other source
An expert-knowledge claim describes acute sauna exposure as increasing growth hormone levels by up to 2–5 fold, especially with repeated sessions and proper hydration.
Open Finnish SaunaStudy result
Acute sauna exposure can increase growth hormone levels by up to 2–5 fold, especially with repeated sessions and proper hydration.
- →PracticesIce Bath / Cold PlungeCertaintyLowSourceTheoretical1 other source
Acute cold-water immersion, especially when a large surface area is exposed, is described as triggering a temporary increase in growth hormone secretion through sympathetic activation and cold-induced thermogenesis.
Open Ice Bath / Cold PlungeStudy result
Acute cold water immersion, especially with large surface area exposure, triggers a transient increase in growth hormone secretion, mediated by sympathetic activation and cold-induced thermogenesis.
Very low probability(1)
- →PracticesHigh-Intensity Interval Training (HIIT)CertaintyVery lowSourceClinical1 other source
A 2025 systematic review did not find definitive results for changes in IGF-1, irisin, cortisol, or interleukin levels; it does not establish an increase in growth hormone release.
Open High-Intensity Interval Training (HIIT)Who was studied
- Healthy people and patients
- Obesity
- Prostate Cancer
- Stroke
Practices compared
Practices with at least one trial of their own for this goal. Ranked by how sure the evidence is, then effect size.| Practice | How sure | Effect size | Own trials |
|---|---|---|---|
| Hot Bath | CertaintyLowSourceClinical | 1 trial or pooled analysis | |
| Infrared Sauna | CertaintyLowSourceClinical | 1 trial or pooled analysis | |
| Massage | CertaintyLowSourceRCT | 1 trial or pooled analysis |
How to read the evidence
Evidence tier — overall strength of the evidence for the whole compound
- StrongWell established — backed by strong, consistent human research.
- ModerateSome genuine support, but mostly from small or lower-quality studies. Promising, not proven.
- PreliminaryEarly-stage evidence — a promising hypothesis, not an established effect yet.
- LimitedVery limited evidence — treat this as a hypothesis, not proof.
- InsufficientNot enough good evidence to draw conclusions yet.
Certainty — how sure we can be that the effect is real
- Very highVery sure — strong, consistent evidence
- HighFairly sure — consistent evidence from good studies
- MediumModerately sure — new studies could change this
- LowNot sure — little or mixed evidence
- Very lowVery unsure — almost no usable evidence
Source — where the data comes from
- Meta-analysisPooled analysis of many trials — the strongest evidence
- RCTRandomized controlled trial — a strong human study design
- ClinicalA human clinical study
- Reference knowledgeFrom general health-science or pharmacology references, not a study of this exact claim
- Animal researchStudied in animals, not humans
- Community reportsAggregated user reports — anecdotal signal, not evidence
- TheoreticalMechanism-based reasoning, not yet tested
Study grade — quality of each underlying study (A best, D weakest)
- AHigh-quality — strong, consistent human trials
- BGood — solid evidence with some limitations
- CModerate — limited, small, or mixed-quality studies
- DWeak — preliminary, indirect, or animal-only
Confidence — how strongly the sources back a finding
A 0–100 score from study quality and agreement
Most supplement evidence is graded C–D. Read it as preliminary signal, not proof.
Full write-up
What is it
Increased Growth Hormone Release refers to a rise in growth hormone levels after an intervention or exposure. It describes a hormone response, not a specific sensation, symptom, or guaranteed visible change. This outcome can be discussed in relation to approaches such as GABA or Finnish Sauna, but an observed increase in growth hormone should not be confused with proof of a broader health benefit.
How interventions help
Interventions associated with increased growth hormone release differ mainly in whether they act as brief triggers or are taken over a longer period. GABA is described as an acute approach: a single 5 g dose produced an immediate increase, with growth hormone rising to above 5 ng/mL (p<0.0001). The change was not reported to persist after stopping, so this pattern represents a short-lived response rather than an ongoing effect.
Environmental interventions also produce acute responses. Finnish Sauna may increase growth hormone during or after exposure, with larger responses described when sessions are repeated and hydration is maintained. Ice Bath / Cold Plunge is likewise characterized as producing a significant but transient increase, particularly when a large surface area is exposed. These responses are linked to sympathetic activation and cold-induced thermogenesis, making the experience and timing of the intervention important to how the effect is interpreted.
Tribulus Terrestris differs from these brief interventions because it was evaluated over 6-12 weeks at 900-1800 mg/day. Findings have not moved consistently in one direction: one study reported increases in growth hormone and IGF-1, while another reported decreases in IGF-1 and IGFBP-3. Citrulline and Vitamin B3 (Niacin) are supported here only by reports of the effect rather than a defined intervention pattern; Vitamin B3 (Niacin) is described as immediate, while no duration or persistence pattern is provided for Citrulline. Overall, these interventions should not be treated as interchangeable: an acute hormone rise, a response associated with repeated exposure, and a longer supplementation period describe different kinds of change.
Choosing guidance
Choosing among these options depends first on whether the goal is a clearly timed, short-term exposure or a longer supplement trial. GABA is the most readily defined short-term option, while Tribulus Terrestris is framed as a longer course. Citrulline does not have a defined dose or duration in the available description, making it harder to evaluate against the other choices. Finnish Sauna and Ice Bath / Cold Plunge are acute physical exposures rather than supplement regimens, so the relevant practical considerations are the exposure itself and whether it can be repeated consistently.
The evidence does not establish human applicability for GABA, Citrulline, Vitamin B3 (Niacin), or Tribulus Terrestris. The sauna and cold-plunge descriptions are reference-based and do not specify which people were studied, so they should not be treated as evidence for every user or setting.
Tribulus Terrestris also warrants caution when comparing results because the reported findings point in opposite directions for growth-hormone-related markers. An immediate or acute response, where described, should not be assumed to persist after the exposure ends. Overall, GABA is easier to assess as a defined short-term experiment, whereas the other options require more caution about regimen, repeatability, and how directly the evidence applies to humans.