Generally speaking I avoid making these statements because I no longer try to sell my products but just present information relating to the products, so in the case of the example above I would write an article about the benefits of losing weight.
I have built a reputation for always been truthful, but now have a little bit of a dilemma, in a new business I have started, I need to tell a white lie which could earn me money and at the same time mislead someone to take action which will help them and cost them nothing.
My everyday tag line is
Helping people to help themselves
so perhaps there is nothing wrong with marketing this way, what do you think