"While it may seem like a contradiction that an employer can maintain a health fitness program targeting obesity while protecting overweight employees from rude or demeaning treatment, this is exactly what the future promises."

In a sense, this is no more complex than applying the golden rule to wellness. Almost all people want “wellness,” yet few want to be insulted or teased in their efforts to become well.”
Source:  The 2008-2009 Littler Report “Employer Mandated
Wellness Initiatives: The Continuum from Voluntary to Mandatory Plans.”