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HGH for Weight Loss: What the Evidence Shows

What human and animal studies show about HGH for weight loss, how strong that evidence is, and what is still unproven.

Medically reviewed by Juan Pablo Frías, MD · · DisclosureRecombinant growth hormoneUpdated
Strongest evidence
None graded
no study with an outcome for weight loss (PubMed search, 2 Oct 2026)
Human studies
None found
with an outcome for weight loss, in our evidence file (PubMed search, 2 Oct 2026)
Animal studies
None found
with an outcome for weight loss, in our evidence file (PubMed search, 2 Oct 2026)

Evidence for weight loss

None of the study abstracts we summarised for HGH reported an outcome for weight loss (PubMed search, 2 Oct 2026). Claims that it helps with weight loss are unproven.

How strong is it?

Strongest evidence:No graded study for weight loss (PubMed search, 2 Oct 2026)

A human randomized trial outweighs any number of animal studies. Animal and cell results show a mechanism worth testing, not that it works in people.

Other peptides people research for weight loss

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All peptides for weight loss, compared

Common questions

Does HGH help with weight loss?

None of the studies we summarised for HGH (PubMed search, 2 Oct 2026) measured an outcome for weight loss. Treat claims that it helps with weight loss as unproven.

Is HGH approved for weight loss?

HGH is FDA approved (prescription only). Which conditions that approval covers is set by the label; use for anything else is off-label.

What is the best peptide for weight loss?

There is no single answer. Our weight loss overview compares each candidate by evidence grade and legal status rather than by popularity.

More on HGH

DosageDoses used in published studies, with the source for each.Side effectsWhat labels and studies report, and what is unknown.ResultsStudy outcomes and when they were measured.PricePrice per mg and per week from dated listings. No vendor links.Legal statusFDA, compounding and WADA status with dates.How to injectSites, syringe types and hygiene, step by step.

Sources

  1. 1PubMed search: (somatropin[tiab] OR "recombinant human growth hormone"[tiab] OR rhGH[tiab] OR "growth hormone replacement"[tiab] OR "growth hormone treatment"[tiab] OR "growth hormone therapy"[tiab]) AND adult*[tiab] AND (meta-analysis[pt] OR systematic review[pt]) (68 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  2. 2PubMed search: (somatropin[tiab] OR "recombinant human growth hormone"[tiab] OR rhGH[tiab] OR "growth hormone replacement"[tiab] OR "growth hormone treatment"[tiab] OR "growth hormone therapy"[tiab]) AND ("growth hormone deficiency"[tiab]) AND adult*[tiab] AND randomized controlled trial[pt] (66 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  3. 3PubMed search: (somatropin[tiab] OR "recombinant human growth hormone"[tiab] OR rhGH[tiab] OR "growth hormone replacement"[tiab] OR "growth hormone treatment"[tiab] OR "growth hormone therapy"[tiab]) AND (elderly[tiab] OR "older adults"[tiab] OR healthy[tiab]) AND (systematic review[pt] OR meta-analysis[pt]) (8 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  4. 4PubMed search: (somatropin[tiab] OR "recombinant human growth hormone"[tiab] OR rhGH[tiab] OR "growth hormone replacement"[tiab] OR "growth hormone treatment"[tiab] OR "growth hormone therapy"[tiab]) AND (athlet*[tiab] OR "physical performance"[tiab] OR "recreational"[tiab]) AND (randomized controlled trial[pt] OR systematic review[pt]) (20 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  5. 5PubMed search: (somatropin[tiab] OR "recombinant human growth hormone"[tiab] OR rhGH[tiab] OR "growth hormone replacement"[tiab] OR "growth hormone treatment"[tiab] OR "growth hormone therapy"[tiab]) AND sleep[tiab] AND (randomized controlled trial[pt] OR clinical trial[pt]) (12 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  6. 6PubMed search: (somatropin[tiab] OR "recombinant human growth hormone"[tiab] OR rhGH[tiab] OR "growth hormone replacement"[tiab] OR "growth hormone treatment"[tiab] OR "growth hormone therapy"[tiab]) AND (tendon[tiab] OR collagen[tiab] OR "wound healing"[tiab] OR fracture[tiab]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt]) (55 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  7. 7PubMed search: (somatropin[tiab] OR "recombinant human growth hormone"[tiab] OR rhGH[tiab] OR "growth hormone replacement"[tiab] OR "growth hormone treatment"[tiab] OR "growth hormone therapy"[tiab]) AND (cardiovascular[tiab] OR cardiac[tiab] OR "blood pressure"[tiab] OR cholesterol[tiab] OR lipid*[tiab]) AND adult*[tiab] AND (meta-analysis[pt] OR systematic review[pt] OR randomized controlled trial[pt]) (77 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  8. 8PubMed search: (somatropin[tiab] OR "recombinant human growth hormone"[tiab] OR rhGH[tiab] OR "growth hormone replacement"[tiab] OR "growth hormone treatment"[tiab] OR "growth hormone therapy"[tiab]) AND (diabetes[tiab] OR "insulin resistance"[tiab] OR glucose[tiab]) AND adult*[tiab] AND (meta-analysis[pt] OR systematic review[pt] OR randomized controlled trial[pt]) (52 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  9. 9PubMed search: (somatropin[tiab] OR "recombinant human growth hormone"[tiab] OR rhGH[tiab] OR "growth hormone replacement"[tiab] OR "growth hormone treatment"[tiab] OR "growth hormone therapy"[tiab]) AND (skin[tiab] OR hair[tiab] OR aging[tiab]) AND (randomized controlled trial[pt] OR clinical trial[pt]) (30 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026
  10. 10PubMed search: (somatropin[tiab] OR "recombinant human growth hormone"[tiab] OR rhGH[tiab] OR "growth hormone replacement"[tiab] OR "growth hormone treatment"[tiab] OR "growth hormone therapy"[tiab]) AND ("sexual function"[tiab] OR libido[tiab] OR "erectile"[tiab] OR "quality of life"[tiab]) AND adult*[tiab] AND (randomized controlled trial[pt] OR meta-analysis[pt]) (29 results)PubMed · 2026pubmed.ncbi.nlm.nih.govAccessed 2 Oct 2026

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