Health is not an obligation.  Nobody owes anybody else “health” or “healthy” behaviors by any definition.

Health is not a barometer of worthiness. Everyone deserves basic human respect. 

Health is not completely within our control. Health is multifaceted and includes genetics, environment, stress level, access to healthcare, behaviors such as food, movement, sleep, etc. Nobody is completely in control of all of these factors, and we overestimate the amount of control we have over our health outcomes.

Health is not guaranteed under any circumstances.  No behaviors guarantee a specific health outcome.  People get all kinds of illnesses regardless of their behaviors or body size.  Thin people get all the same diseases that are correlated with being fat, so being thin is not a sure preventative or a sure cure.

Here in 2015, much of our culture assumes that "Health" is a monolithic, universal good.  As Anna Kirkland says in her book: Against Health: How Health Became the New Morality (2010):

"You see someone smoking a cigarette and say: "Smoking is bad for your health", when what you mean is, "You are a bad person because you smoke."  You encounter someone whose body size you deem excessive, and say "Obesity is bad for your health," when what you mean is "You are lazy, unsightly, or weak of will."  You see a woman bottle-feeding an infant and say, "Breastfeeding is better for that child's health", when what you mean is that the woman must be a bad parent.

You see the smokers, the overeaters, the bottle-feeders, and affirm your own health in the process.  In these and countless other instances, the perception of your own health depends in part on your value judgments about others, and appealing to health allows for a set of moral assumptions to fly stealthily under the radar."

The following article also addresses this issue.

Important note on
“healthy is the new skinny…”
                by Isabel Foxen Duke

In many ways, healthy IS the new skinny — in the sense that, for some, it has become a new, politically correct way for women to shame, judge and fear themselves (…and others).

Unfortunately, this is to the detriment of a growing list of women I hear from regularly saying things like “I ...