Most obesity researchers are paid by the soda industry. e.g. http://www.alternet.org/food/soda-scandal-journalists-fail-r...
The best outline is the latest "Sugar" documentary http://thatsugarfilm.com/film/synopsis/ who started to get the word out and of course Yudkin's book. http://www.telegraph.co.uk/lifestyle/wellbeing/diet/10634081...
The UNICEF is trying for years to warn against excessive sugar consumption. But only their latest report speaks out: https://www.unicef-irc.org/publications/pdf/IWP_2016_13.pdf The Soda industry with the help of politicians did effectively destroy all sugar warnings and turn the carb problem into a fitness and fat issue.