I’m not getting how this is any different from regular photo ID. The article mentions how it would be stored on the passengers phone but that’s just E-ID, which is also far from new. Is this just some random company trying to advertise their system for automated ID checks?

While ideally you’d want a column for serving size, package size, and per 100g, if you’re only gonna have one it should definitely be the per 100g since that’s the only one that allows you to easily compare between different brands and products.