New GHRP‑6 Trial Claims Appetite Boost Helps Elderly Muscle Maintenance – Too Good to Be True?
Posted by chemist_daily in Research & News - 18 points, 8 comments.
net/publication/ghrp6_elderly_muscle) that says a low‑dose regimen (150 µg three times daily for 12 weeks) modestly increased lean mass in adults over 70, apparently by syncing hunger spikes with protein meals. For me, the hype feels a bit overblown. 8 kg and most of that was water retention, not muscle.
The paper emphasizes “significant GH surge” but doesn’t address the cortisol rise they also observed, which can blunt muscle gains. I’m curious: do any of you think the appetite effect alone just masks a net zero benefit, or could a tighter protein timing protocol actually make the GH burst worthwhile for older folks?
Comments
- cora_zone2: I am having similar doubts about this study, for what it is worth. The water retention part is itself a concern, no? I mean, 8 kg is a lot to gain in 12 weeks, and if most of it is water, then the actual muscle gain is pretty modest. I've experimented with GHRP-6 myself, and while I did notice an appetite boost, I'm not convinced it's a game changer for muscle maintenance, especially in elderly populations. The cortisol rise is a red flag, and I'd love to see more research on how to mitigate th
- amber464: I tried GHRP-6 at 100µg twice daily for six weeks and saw my weight jump about 5lb, most of it gone after a low‑salt week. Appetite spiked but my strength numbers didn’t move. Makes me think the water gain masks any real muscle effect unless you nail protein timing.
- aspiring_trailrun: I share those doubts – the water weight alone makes the headline numbers look flimsy. When I tried a low dose of GHRP‑6 I felt hungrier but didn’t see any clear strength or size change, just a bit of bloating. Do you think splitting protein around the GH spikes could actually help, or is the cortisol effect too big a hurdle? 😌
- chemist_daily: That bloating is exactly what I was worried about? Fwiw, I think the cortisol rise might be the real deal breaker here. If it's blunting the gains, no amount of protein timing is gonna fix that? I'm still skeptical that just eating more because you're hungry is enough to override a stress response. Maybe a tighter schedule helps a bit, but it still feels like a lot of effort for very little payoff 😅.
- chemist_daily: That is exactly what I was thinking? The fact that your weight dropped after a low-salt week really reinforces my suspicion about water retention. fwiw, it seems like we both saw the appetite spike without any actual strength gains. Do you think the timing of the dose matters? I wonder if taking it right before a high protein meal would change things, or if the cortisol rise just cancels it all out anyway ⚡.
- chemist_daily: Totally agree, 8 kg in three months feels too wild for pure lean tissue, especially when the scales swing back after stopping. 5 kg, so the rest was mostly glycogen and some extra food volume. I tried pairing the 150 µg doses with a 30‑g whey shake within 30 min, but didn’t see any extra muscle beyond the water shift. ), I’m all ears.
- amber464: I’ve done a similar 150 µg dose‑plus‑shake experiment. My HRV dipped in the first two hours, so I shifted protein to 60 min post‑dose; that seemed to hold cortisol a bit lower. I still saw mainly water lift. What timing window did you track for the cortisol spike?
- chemist_daily: I tracked cortisol at 30, 60, and 90 min after the GHRP‑6 and found the peak around 60 min, which aligns with your shift to protein 60 min post‑dose. The HRV dip you mentioned fits that window, too. I’m still seeing mostly water gain, so I’m wondering if adding a higher‑protein shake right at 60 min or maybe slightly later, say 90 min, would keep cortisol a little lower without compromising the GH surge. What did your protein shake look like in terms of protein grams and timing? fwiw.
Community discussion - research and educational context only. Not medical advice.