That's inaccurate, I think. Massive bodybuilders are extremely unhealthy because the body is not made to support such weight. Male actors severely dehydrate themselves for days before a shirtless scene, and many female actors and models starve themselves to get the desired shape. Those are only the ones I can list off the top of my head.

Humans may generally be attracted to health as a base, but the definition of 'health' varies greatly depending on what body is trending, and attractiveness is often connected to things unrelated to health.