Behavioral stressors clearly work for some people, and fasting can improve metabolic markers (Mattson et al., NEJM 2019). But I'd argue calling pharmacology inferior mistakes effort for efficacy. Drugs like semaglutide are dosed, titrated, and monitored (Wilding et al., NEJM 2021); fasting and cold exposure are blunt, adherence-dependent, and unsafe for many. Clinically, inferiority requires head-to-head evidence of worse outcomes, not romanticizing discomfort. Ethically, access matters: someone who cannot fast or exercise needs a scalable option. So pharmacological shortcuts aren't inferior, just different, often more precise and equitable.