The only reason I can imagine you'd have this idea is if you're operating under the mistaken assumption that "healthy food" and "food that you can enjoy" are mutually-exclusive categories.
This ties into a lot of quasi-religious crap surrounding diet in general, which makes every fad diet an orthodoxy complete with demonic outsiders (foods absolutely prohibited and made to seem inherently unhealthy), canonized sacraments (foods that are held up as perfect and beyond reproach), and the sin-guilt-redemption cycle.
Nonsense.
You can lose weight eating Twinkies if you mind your caloric intake and burn more than you consume. (You'll have to watch your nutrient intake as well, but that's a given. You always need to do that to some extent.) Therefore, you can eat good foods in the right amounts and it'll work. You'll also be more inclined to stay on the diet and make it a true lifestyle change.
http://www.cnn.com/2010/HEALTH/11/08/twinkie.diet.professor/...
http://articles.latimes.com/2010/dec/06/health/la-he-fitness...