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It's definitely my physiology. I have IGF-1 from both, something is going on weird with my hormones/metabolism.Thanks for the comparison, otherwise WWB was looking a bit weak, but it may be your physiology.
Do you have IGF from while on JY?


I just came off of a 6 month calorie deficit with very high multi-GLP1 use.
DEXA scan showed ~9%
View attachment 358350
The bloods where my leptin dropped from 0.4 -> 0.3 were actually after taking vacation + consuming massive calorie surplus and not exercising much.Looks like a serious week long refeed (like 75% above maintenance) or longer with less surplus calories should normalize Leptin levels, Carbs are better for this purpose, then you could return to maintainance calories.
Impressive!
So there’s your answer. Leptin doing what it does. Telling the liver you’re starving don’t waste energy growing.
“Acquired GH Resistance”
Same reason AIDS wasting patients need those huge Serostim doses.
Low Leptin also triggers increased GH binding protein production. Reducing GH half life from 3-4 hours to 1-2, so it’s cleared quickly explaining the low GH numbers an hour after injection.
Looks like a serious week long refeed (like 75% above maintenance) or longer with less surplus calories should normalize Leptin levels, Carbs are better for this purpose, then you could return to maintainance calories.
“GH dominance” continues to metabolize fat (lowering Leptin further), conserves glucose (fatigue and insulin resistance), creates an anti-anabolic environment, and worsens all typical GH sides like carpal.
Going to start monitoring Leptin whenever getting IGF checked now too because of your experience….
Do GLP's medications effect this in any way?
The hunger signalling (or lack thereof) modulates Leptin levels if I'm not mistaken so using HGH whilst say using Reta will result in higher leptin levels than if you were to have the same cal deficit without using Reta...
That's really interesting, I'm going to check into this.studies show GLPs can increase IGF-1 20-40% (at the same leptin level) by restoring Leptin sensitivity. Up to 80% in someone who was formerly obese (and presumably has a lot of Leptin resistance). Significant improvement in IGF within a couple of weeks after starting GLP, max improvement in studies seen around 12 weeks
