I honestly think this is one of the bigger problems with people who "can't do math", probably most people can learn quite a bit of (at least basic) mathematics. But oftentimes when you did not understand the subject well previously, like in high school because of different interests at the time or a bad teacher or something. And then because of this whenever you see an equation or hear the word 'mathematics' you just shut off your brain. I know some people who can understand me when I explain some physics or mathematics concept without explicit mathematics, but they would be scared off at the first equation.

I am fairly sure that there is a nestle logo on the packaging of these brands as well

Exactly. All that's required is looking at packaging. Anyone who cares about what they put into their body is already having a habit of doing that.

I'm not sure many people are checking the nutritional information of their San Pellegrino.

I have to agree with this, and recently I have stopped listening to music on my bike ride commute. It makes me think about things and give me the ability to actually progress on thoughts. I feel like this is more and more becoming something you have to actively do, with the easy distractions of social media and alike.