¿Es clínicamente perjudicial el ciclo de peso?
Efecto "Rebote" o "Yo-Yo"
The Lancet Diab&Endoc 14 May 2026
Aproximadamente la mitad de la población mundial intenta perder peso, pero lo habitual es recuperar lo perdido, lo que genera ciclos repetidos de ganancia y pérdida de peso (el llamado "efecto rebote"). Existe la hipótesis de que este ciclo es metabólicamente dañino, ya que podría aumentar la grasa corporal, reducir la masa muscular, ralentizar el metabolismo y empeorar la obesidad y la intolerancia a la glucosa.
Sin embargo, la evidencia científica actual en humanos y animales no respalda que el ciclo de peso cause un daño clínico directo. La mayoría de los efectos negativos reportados suelen deberse a factores como el envejecimiento o la exposición prolongada a la obesidad. Al final, los beneficios de la pérdida de peso intermitente superan los riesgos potenciales de las fluctuaciones de peso.
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