Potato and hypertension: only a bias or the same sugar?

http://openheart.bmj.com/content/1/1/e000167.full

http://ajcn.nutrition.org/content/86/4/899.full

It seems that Fructose is highly suspected

Keep in mind this chart:

It is globally the same trend in EU and US

http://www.bmj.com/content/353/bmj.i2351
http://www.medpagetoday.com/Cardiology/CardioBrief/57977?xid=nl_mpt_DHE_2016-05-18&eun=g432148d0r