Fig. 1.

Correlation between HS relative search volume or prevalence and ultra-processed foods consumption. a HS and UPFs positive correlation by country: the countries who consume UPFs the most have the highest HS RSV (r = 0.83, p < 0.0001) as opposed to melanoma where no correlation was found (r = 0.35, p = 0.14); b HS and processed foods positive correlation by state in the US: the states who consume processed foods the most have the highest HS RSV (r = 0.82, p < 0.0001) as opposed to melanoma where no correlation was found (r = 0.22, p = 0.23); c HS and UPFs consumption changes and correlation over the years in the US: both UPFs consumption and HS have increased with a strong positive correlation (r = 0.79, p = 0.019); d HS and MPFs consumption changes and correlation over the years in the US. A strong negative correlation was found between MPFs and HS: while MPFs consumption has decreased, HS RSV has increased (r = − 0.941, p = 0.0005)