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Ibutamoren (Ibutamoren)

SARM

Ibutamoren · Nutrobal

MK-677 is not a SARM but a GH secretagogue. Does not suppress the HPTA axis. Excellent in a stack for recovery and sleep quality. Long-term use (6-12 months) for maximum benefits.

Half-life

24 heures

Detection

Non détecté (sécrétagogue)

Oral

Dosages

Beginner10 mg/j
Intermediate20 mg/j
Advanced25–30 mg/j
Female10 mg/day

Frequency : 1× / day (evening, before bed)

Effects

  • Increase in natural GH and IGF-1
  • Recovery ++
  • Sleep quality
  • Increased appetite
  • Joint health

Side effects

  • Excessive appetite
  • Mild water retention
  • Lethargy
  • Possible insulin resistance (long-term)
  • Hand numbness

Support supplements

Berberine (insulin sensitivity)ZincVitamin D3

Synergies & stacks

Any SARMSteroidsBPC-157TB-500

Avoid

  • Diabetics or prediabetics
  • After 8 PM if sleep is disrupted

AnaProtoKol is a health and performance tracking tool. This information is provided for educational purposes only and does not constitute medical advice. Consult a qualified healthcare professional before starting any protocol.

Sources

Studies and scientific publications this guide relies on.

  1. Nass R, Pezzoli SS, Oliveri MC, et al. (2008). Effects of an oral ghrelin mimetic on body composition and clinical outcomes in healthy older adults: a randomized trial. Annals of Internal Medicine. doi: 10.7326/0003-4819-149-9-200811040-00003

    RCT 12 mois (65 sujets âgés, MK-677 25 mg/j vs placebo) : restauration des niveaux GH/IGF-1 à ceux d'adultes jeunes, augmentation masse maigre +1,1 kg vs placebo, sans amélioration de la force, baisse modérée de la sensibilité à l'insuline.

  2. Sigalos JT, Pastuszak AW (2018). The Safety and Efficacy of Growth Hormone Secretagogues. Sexual Medicine Reviews. doi: 10.1016/j.sxmr.2017.02.004

    Revue clinique : MK-677 (ibutamoren) est un sécrétagogue GH oral à action prolongée (demi-vie 24 h), agoniste du récepteur de la ghréline — élévation IGF-1, augmentation appétit, rétention sodée modeste, baisse sensibilité insuline à surveiller.

  3. Kojima M, Hosoda H, Date Y, et al. (1999). Ghrelin is a growth-hormone-releasing acylated peptide from stomach. Nature. doi: 10.1038/45230

    Article Nature : identification de la ghréline comme ligand endogène du récepteur GHS-R1a — MK-677 (ibutamoren) est un agoniste non peptidique de ce même récepteur, mimant l'action endogène de la ghréline sur la sécrétion de GH.

  4. Pope HG Jr, Wood RI, Rogol A, et al. (2014). Adverse health consequences of performance-enhancing drugs: an Endocrine Society scientific statement. Endocrine Reviews. doi: 10.1210/er.2013-1058

    Énoncé Endocrine Society : MK-677 et autres sécrétagogues GH augmentent l'appétit, l'IGF-1, la rétention sodée et peuvent dégrader la tolérance au glucose — usage prolongé associé à œdème, arthralgies et signal théorique sur la prolifération cellulaire.

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SARMs vs steroids vs peptides

SARMs explained

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BPC-157 and TB-500 recovery peptides

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AnaProtoKol is a health and performance tracking tool. This information is provided for educational purposes only and does not constitute medical advice. Consult a qualified healthcare professional before starting any protocol.