Going from Tirzepatide to Reta

I have to admit I do not know much about lifting heavy weights. Where would someone even begin, and what protein target should I actually aim for?

I got the muscle-loss concern from a video, but I accept it may not be a major issue after all.

Thanks for the detailed reply. I expected some sarcasm about not knowing much about weights, so the helpful tone was a surprise.

The person in that video should not be using the medication at all since they are not overweight or diabetic, so the results shown do not apply to typical users. Muscle loss mainly matters if someone already starts with very low muscle. Most overweight people have above-average muscle to begin with. GLP drugs also improve muscle quality by cutting intramuscular fat. The weight reduction itself makes daily movement noticeably easier regardless.

That figure was presented as a minimum. Slowed stomach emptying from these drugs limits how much protein can be handled at once, roughly 30-35 g per meal for most people. Excess beyond that gets turned into other compounds and can stress the liver. I once saw two gym acquaintances develop kidney problems after very high intakes over years.

I agree the video subject is not a good example. The PCSK9 claim also lacks support in the actual retatrutide data, which instead shows lower LDL. The observed rise may be unrelated and the presenter overlooks that possibility.

I have run a very high-protein diet for years and wonder about longer-term effects. Animal data often favor lower protein for longevity, yet human evidence suggests higher amounts can help keep muscle during weight loss. Protein poisoning is almost impossible under normal conditions. My own kidney markers improved once weight came down despite the high intake.

Spreading 30 g every couple of hours across waking hours can reach 240 g daily. Gastric emptying slows on these drugs, so timing matters. Retatrutide has been easier for me personally, rarely exceeding 20 g in one sitting. Too much at once can raise blood sugar through gluconeogenesis and affect morning readings in diabetes. High branched-chain amino acids may also worsen insulin resistance.

Did those two really damage their kidneys from the protein load? Were there no earlier signs they could have noticed?

One of them went from impressive strength gains to dialysis before age twenty after years of extreme intake. The other case was shared by a trainer with a background in exercise science, which made the explanation more believable.