Why not simplify it even more, and add:

4. Be born with genetics that avoid this common issue

Also, obesity used to be a status symbol, as a proxy for power, in many cultures. It wasn’t impossible before 1910, just likely more difficult to attain. And it seems unlikely that people in 1910 and before ate particularly “healthy,” as we define the term in 2010, since the modern abilities to produce and distribute food weren’t yet available. So perhaps remove point 1, if we want to be historically accurate?