E-numbers works like a black list of food additives that should be avoided for health- or religious/ethical reasons, and puts the power of quickly checking up on food contents in the palm of your hand.
If a substance is found in the listing it should generally be avoided as it may have adverse effects on your health.
E-numbers offers clear indication on whether a substance is derived from animals; just look for the pigs head icon next to the list entry.
A filter function lets you sort the list the way you want to.
Visible information:
* Number
* Name
* Aliases (some substances hide behind pretty names)
* Category
* Common areas of use
* Possible adverse health effects
* General noteworthy information
Information is available in Swedish and English.