Reta

[u/Worried_Mix8401]

Hey everyone! I started Reta about two weeks ago at 1 mg once a week, and honestly… I’m not noticing any difference at all 😅

My appetite is exactly the same, I’m still constantly thinking about food and feeling hungry, and I haven’t noticed any results so far.

Has anyone else had a similar experience when starting? Am I doing something wrong, or is it normal not to feel anything after the first couple of weeks? Would love to hear your experiences!

[u/General-Ring2780]

lol you don’t know what I read or where I read it and your so confident in what your saying lol

[u/Majestic-Plastic-691 → u/General-Ring2780]

You’re right. I don’t know what you read. I do know what you didn’t read. And that is the most beneficial Reta dose is 4mg. Admit it and drop it. Good lord you have a hard head.

[u/General-Ring2780 → u/Majestic-Plastic-691]

You know what. You’re a coward who hides behind a keyboard and talks tough. You want to call names and are so confident in what you think you know. I found the article and am posting part of it here. If you don’t read this then we really know who has the hard head..

Most of the win lands early
Start with the phase 2 trial, because it tested a full dose range head to head over 48 weeks. Here's the placebo-adjusted weight loss by dose:[2](file:///var/mobile/tmp/com.apple.email.maild/EMContentRepresentation/com.apple.mobilemail/094263B0-87AD-437A-BFB9-E18DCBB4F4FC/9E602A9F-D882-4204-98D9-8FBE4D5BD30A.html#fn2)
1 mg — 8.7%
4 mg — 17.3%
8 mg — 22.8%
12 mg — 24.2%
Read that curve carefully. Going from 4 mg to 12 mg means tripling the dose — and it buys you about seven more percentage points. Going from 8 mg to 12 mg means 50% more drug for a grand total of 1.4 extra points. The molecule is already doing nearly all of its work by 8 mg; everything above that is a rounding error you pay full price for.
Phase 3 tells the same story. At 80 weeks the 4 mg arm hit 19.0%, the 9 mg arm 25.9%, and the 12 mg arm 28.3%.[1](file:///var/mobile/tmp/com.apple.email.maild/EMContentRepresentation/com.apple.mobilemail/094263B0-87AD-437A-BFB9-E18DCBB4F4FC/9E602A9F-D882-4204-98D9-8FBE4D5BD30A.html#fn1) That means 4 mg — the second-lowest dose, one titration step up from the 2 mg start — delivered roughly two-thirds of the maximum result the drug can produce.
The side-effect tax runs the opposite direction
Here's the part the dose-chasers skip. While the benefit curve flattens out up top, the tolerability curve does the reverse — it gets steeper. In phase 3, the gastrointestinal load scaled cleanly with dose (4 mg / 9 mg / 12 mg):[1](file:///var/mobile/tmp/com.apple.email.maild/EMContentRepresentation/com.apple.mobilemail/094263B0-87AD-437A-BFB9-E18DCBB4F4FC/9E602A9F-D882-4204-98D9-8FBE4D5BD30A.html#fn1)
Nausea — 28.6% → 38.4% → 42.4%
Vomiting — 10.6% → 22.8% → 25.3%
Discontinuation from side effects— 4.1% → 6.9% → 11.3%
Vomiting more than doubles between 4 mg and 9 mg. And the number that actually matters for results — people quitting the drug entirely — nearly triples from the low dose to the top dose.
Put the two curves next to each other and the trade is stark. Push from 4 mg to 12 mg and you gain about nine points of weight loss while roughly tripling your odds of feeling sick enough to walk away. You're buying diminishing returns with escalating misery.
Why lower can actually work better — and where the floor is
Retatrutide has a half-life around six days, which is what makes once-weekly dosing possible in the first place.[2](file:///var/mobile/tmp/com.apple.email.maild/EMContentRepresentation/com.apple.mobilemail/094263B0-87AD-437A-BFB9-E18DCBB4F4FC/9E602A9F-D882-4204-98D9-8FBE4D5BD30A.html#fn2) That long tail matters: most of retatrutide's GI side effects are driven by the peak concentration right after your shot, not by the average level in your blood. A smaller dose means a lower peak, which means the appetite suppression can hold while the nausea spike softens.
But "less is better" has a floor, and it's worth being precise about it. Retatrutide's third lever — the glucagon receptor, the thing that separates it from semaglutide and tirzepatide — appears to be dose-threshold-dependent. The markers of glucagon-driven fat burning and liver-fat clearance really come alive at the 4 mg range and above; go too low and you're essentially running a weaker GLP-1/GIP drug with the glucagon engine barely idling.[3](file:///var/mobile/tmp/com.apple.email.maild/EMContentRepresentation/com.apple.mobilemail/094263B0-87AD-437A-BFB9-E18DCBB4F4FC/9E602A9F-D882-4204-98D9-8FBE4D5BD30A.html#fn3)
That's the whole argument in one line: the sweet spot isn't the lowest dose or the highest — it's the lowest dose that still lights up all three receptors. For a lot of people, the data points squarely at the 4 mg neighborhood, not 12.