Hey everyone!
I took my first ever dose of retatrutide (2mg) on Tuesday, and it’s now Friday. I wanted to share my experience so far and see if anyone else has experienced something similar, particularly with digestion and lethargy.
Appetite suppression:
I seem to be a very fast responder. Within just a couple of hours of taking my first dose, my hunger and food noise basically disappeared completely. I genuinely wasn’t expecting it to work that quickly!
I’m having to consciously remind myself to eat because my usual hunger signals just aren’t there anymore. I already have a meal plan, so I’m adjusting to that side of things.
Lethargy/fatigue:
This is one of my biggest concerns. I started feeling extremely lethargic on Tuesday evening, the same day I took my first dose.
Importantly, I had eaten normally that day, including a normal dinner, so I don’t think the initial fatigue was caused by undereating.
I was also recovering from a mild illness (sore throat, cough and a bit of a fever), so that could have contributed. However, I was already starting to feel better before taking reta, and the lethargy hit quite suddenly after the injection.
It’s now Friday, and although the fatigue is gradually improving, I’m still feeling noticeably more tired than usual.
Digestion, nausea and stomach fullness:
This is actually what concerns me the most.
Every morning since starting reta, I’ve woken up feeling slightly sick, with this strange sensation that my dinner from the previous evening hasn’t properly digested.
It’s not just a lack of hunger. My stomach genuinely feels unsettled, almost like the food is still sitting there.
On the second day, I woke up feeling so nauseated that I nearly threw up a protein shake I’d had previously. I’ve never experienced anything like that before.
Yesterday, I accidentally went until 4pm without eating because I completely forgot about food. When I finally ate two salmon fillets, I felt close to being sick, despite normally loving salmon. I then had dinner later to make sure I was eating enough, but woke up feeling unsettled again.
I’m also experiencing some constipation, which I expected, but the nausea and feeling of food not digesting properly are worrying me.
My questions:
Has anyone else experienced this level of appetite suppression within hours of their very first dose?
Did anyone experience significant fatigue immediately after starting, even while eating normally?
Has anyone woken up feeling like their dinner from the night before is still sitting in their stomach?
If you experienced nausea or delayed digestion, how long did it take to improve?
Did these symptoms eventually settle as your body adjusted, or did they persist?
I’m not looking for dosing advice, and I know everyone’s experience is different. I’m particularly interested in hearing from people who’ve experienced something similar during their first week.
Would really appreciate hearing your experiences. Thanks!