More burn sounds greatβ¦
The Hidden Cost of Thermogenesis ,But where is that energy coming from when fat stores drop?
-
For me, resting HR definitely bumped up a bit the first few weeks. Started around 58 and was sitting closer to 68-70. It settled down some after a month.
-
I’ve been on Reta for about 4 months and honestly the HR increase was noticeable. Nothing crazy, but my smartwatch kept flagging it.
-
Personally, I saw maybe a 5-7 bpm increase. The fat loss was worth it for me, but it’s something I keep an eye on.
-
Not gonna lie, the elevated heart rate was the one side effect I didn’t expect. Weight came off fast though.
-
In my experience, resting HR went up during dose increases and then leveled off. YMMV.
-
Mine barely changed. Maybe 2-3 bpm at most. Appetite suppression was way more noticeable than any HR effects.
-
I’ve run it before and my resting HR jumped from low 60s to mid 70s. Ended up lowering the dose and it improved.
-
Results were solid but the higher heart rate made cardio feel different for me. Nothing alarming, just noticeable.
-
Honestly, I tracked everything and saw almost no change in resting HR. Everyone seems to respond differently.
-
For me it was the opposite. Lost a ton of weight and my resting HR actually dropped over time as I got leaner.
-
Beginner user here. About 8 weeks in and resting HR is consistently 6 bpm higher than before starting.
-
Mileage may vary, but every GLP user I know has reported at least a small increase in heart rate, including myself.
-
I noticed the increase more at night while trying to sleep. It wasn’t severe, but definitely there.

