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Head-to-head evidence comparison — which supplement is right for you?
Whey Protein wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Likely helps
26 of 30 studies with measurable effects showed benefit.
Top outcomes
Approved regimen (Egrifta, HIV-associated lipodystrophy only): 2 mg once daily by subcutaneous injection. This is a prescription drug — the dose, indication and monitoring are set by a prescriber. The cognition RCT used a lower 1 mg/day. There is NO validated dose for off-label 'anti-aging' or physique use, and any such use is outside the evidence base.
any
Egrifta / Egrifta SV (prescription, via a clinician)
20-40g per serving
Post-workout (within 2 hours), Morning, Between meals
Whey Protein Isolate
26-52 weeks
6-12 months
Within months of stopping
20-24 weeks
4-8 weeks
24-48 hours post-workout
Immediate
Within hours of consumption
Effects of tesamorelin (TH9507), a growth hormone-releasing factor analog, in human immunodeficiency virus-infected patients with excess abdominal fat: a pooled analysis of two multicenter, double-blind placebo-controlled phase 3 trials with safety extension data.
J Clin Endocrinol Metab (2010) · Rct · n=806
Pooled analysis of two multicenter, double-blind, placebo-controlled phase-3 RCTs (n=806 ART-treated HIV patients with excess abdominal fat), randomized 2:1 to tesamorelin 2 mg or placebo subcutaneously daily
Effects of tesamorelin, a growth hormone-releasing factor, in HIV-infected patients with abdominal fat accumulation: a randomized placebo-controlled trial with a safety extension.
J Acquir Immune Defic Syndr (2010) · Rct · n=404
12-month phase-3 RCT in 404 ART-treated HIV patients with excess abdominal fat; randomized 2:1 to tesamorelin 2 mg sc daily or placebo, then rerandomized at 6 months
Long-term safety and effects of tesamorelin, a growth hormone-releasing factor analogue, in HIV patients with abdominal fat accumulation.
AIDS (2008) · Rct · n=410
26-week safety-extension RCT (n=410) of the phase-3 program; tesamorelin 2 mg vs placebo subcutaneously daily, with rerandomization at week 26
Comparative Efficacy of Different Protein Supplements on Muscle Mass, Strength, and Physical Indices of Sarcopenia among Community-Dwelling, Hospitalized or Institutionalized Older Adults Undergoing Resistance Training: A Network Meta-Analysis of Randomized Controlled Trials
Nutrients (2024) · Meta analysis · n=5272
Treatment effects for main outcomes were expressed as standard mean difference (SMD) with 95% confidence interval (CI).
Effects of Whey Protein, Leucine, and Vitamin D Supplementation in Patients with Sarcopenia: A Systematic Review and Meta-Analysis
Nutrients (2023) · Meta analysis · n=637
However, appendicular muscle mass significantly improved in the experimental group compared to the control group.
A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength
British Journal of Sports Medicine (2018) · Meta analysis · n=1863
Protein supplementation increases muscle mass gains
Based on multiple meta-analyses with >3000 participants. Effects require concurrent resistance training. Benefits plateau around 30-40g per serving. Isolate forms may reduce digestive issues.
AI-estimated from published studies. Interpret as directional guidance.
Whey Protein has a higher evidence score (9/10 vs 5/10) and wins in 3 of 3 categories.
No known interactions between Tesamorelin and Whey Protein have been documented in our database. However, always consult a healthcare provider before combining supplements.