Especial 9.- Hombres vs Mujeres, ¿quién baja de peso más fácil y por qué? - Dr Iñaki y Marco Antonio Regil

July 13, 2026

AI Summary

5 min read

The episode opens with a blunt premise: men and women do not lose weight the same way, and the difference is not about willpower. Dr. Iñaki Villanueva, a Mexican obesity specialist, explains that obesity is a hormone-regulated disease, and sex hormones—testosterone in men, estrogen in women—dictate where fat is stored, how easily it is lost, and what health risks follow.

Why men lose weight faster (and why that is not the whole story)

Men tend to store fat in an "android" pattern—around the abdomen—while women store it in a "gynoid" pattern—hips, thighs, and buttocks. This is not arbitrary. From an evolutionary standpoint, women need more fat reserves to sustain a pregnancy, and the gynoid distribution is linked to estrogen production. Men, whose evolutionary role was hunting and providing, are built for more muscle mass thanks to testosterone. That muscle is metabolically expensive: it burns more calories at rest. So when a man and a woman start the same diet and exercise program, the man typically loses weight faster because he has more muscle and less fat to begin with.

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What you'll learn

1 (01:55) **Biological Differences in Fat Storage** - Dr. Iñaki explains why men and women store fat differently, rooted in evolution and reproductive roles.
2 (05:22) **The Danger of Abdominal Fat** - A breakdown of why visceral fat is more risky and how risk shifts between sexes with age.
3 (07:08) **Weight vs. Body Composition** - A critique of using weight alone as a health metric, using the example of identical twins with different fitness levels.
4 (10:37) **Andropause vs. Menopause** - A nuanced look at hormonal changes in men and how obesity can mimic or worsen andropause.
5 (12:12) **Key Takeaways on Sex Differences** - The doctor’s most important messages for patients to understand about obesity as a disease.
6 (14:24) **How to Self-Screen at Home** - A practical, step-by-step tutorial on calculating BMI and measuring waist circumference correctly.
7 (19:31) **Why Diet and Exercise Are Not Enough** - Answering a listener's question about why treatment focuses on lifestyle, not hormones, during menopause.

+ Full timestamped outline available in the app

Show Notes

Hombres y mujeres NO vivimos de la misma manera el subir o bajar de peso. ¿Por qué parece que nuestros cuerpos juegan con reglas distintas?

El Dr. Iñaki Villanueva, uno de los mayores expertos en obesidad en México, revela cómo las hormonas, la menopausia, la testosterona, la grasa abdominal y hasta la presión social afectan distinto a hombres y mujeres cuando hablamos de sobrepeso y obesidad.

Porque muchas veces no solo luchamos con el peso, también con la culpa, la frustración y la forma en la que nos hablamos.

Si quieres empezar a romper esas barreras, te invito a mi masterclass gratuita: “Rompe las barreras y diseña la vida que deseas”. 👇🏻
https://marcoantonioregil.com/vida-podcast/

*Importante: Nuestros invitados son expertos en sus temas y reflejan su conocimiento y su punto de vista, siendo conscientes de que cada una de las opiniones es totalmente personal. La información, datos, comentarios, estadísticas que se presenten en el Podcast de Marco Antonio Regil, son de exclusiva responsabilidad de quienes las emiten y no representan, necesariamente, el pensamiento de Marco Antonio Regil o de la producción del podcast.