As per a new research, high-fat foods are often the primary target when fighting obesity, but sugar-laden "diet" foods could be contributing to unwanted weight gain as well.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/diet-products-are-just-junk-food-disguise-can-make-you-fat
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/zee-news
[3] http://admin.indiaenvironmentportal.org.in/thesaurus/junk-food
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/obesity
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lifestyles
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health