CarlaRPh_TPA said:Dizziness and cardiovascular risk: I was lightheaded for the first 3 weeks.
Filing a mild objection. Mild because I might be wrong; an objection because nobody has addressed the case that does not fit. The "earlier than weight loss explains" argument is weaker than this thread makes it sound. Blood pressure and inflammatory markers move fast and are downstream of early weight loss, so the mechanism is not as cleanly separable as the summaries imply.
Dr.EM_Chicago said:Prescribed on cardiovascular grounds rather than for weight, and almost everything written for patients assumes the opposite.
Dr.EM_Chicago said:...we don't know the long-term effects of cardiovascular risk...
This is a fair point, and I think intellectual honesty requires acknowledging it. GLP-1 agonists in their current form have ~8-10 years of human exposure data. That's not nothing, but it's not 30+ years either.
However: the risk-benefit calculation should also consider the KNOWN long-term effects of untreated obesity — diabetes, cardiovascular disease, cancer, joint destruction, reduced lifespan by 5-10 years.
Uncertainty about GLP-1 long-term safety vs certainty about obesity consequences. The calculus seems clear to me, but reasonable people can disagree.
Dr.RenalNash said:The "earlier than weight loss explains" argument is weaker than this thread makes it sound.
Dr.RenalNash said:...we're creating a generation dependent on cardiovascular risk...
I understand the concern, but consider this analogy: are we "creating a generation dependent on" blood pressure medication? Cholesterol medication? Thyroid medication?
Obesity is a chronic disease with biological drivers. Treating it with medication is no different from treating any other chronic condition. The "dependency" framing implies weakness or moral failure — neither of which is accurate.
If ongoing medication is what keeps someone healthy, that's successful treatment, not dependency.
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View Resultschris_chi24 said:Dr.RenalNash said: ...we're creating a generation dependent on cardiovascular risk...
NNT calculation for cardiovascular risk clinical endpoints: NNT = 1/ARR (absolute risk reduction).
From SELECT trial: MACE at 39 months — 6.5% semaglutide vs 8.0% placebo. ARR = 1.5%. NNT = 67 over 3.3 years.
Compare to established therapies:
| Intervention | NNT | Timeframe |
|---|---|---|
| Semaglutide (MACE) | 67 | 3.3 years |
| Statins primary prevention (MI) | ~100 | 5 years |
| Aspirin secondary prevention | ~77 | 2 years |
These NNTs are clinically meaningful and comparable to accepted cardiovascular interventions.