I’ve recently been falling down a rabbit hole about how our fruits/vegetables/grains are wayyy less nutritious (in terms of vitamins and minerals) than they used to be. The theory is that this lack of nutrients is why we are getting fatter: in order to get the same nutrients, we simply need to eat more food than we did in the past.
The nutrient depletion has been well documented since the 1980s. Here’s an article from 2006
https://www.seattlepi.com/lifestyle/health/article/fruits-vegetables-not-as-nutritious-as-50-years-1197106.php
Unfortunately, multivitamin tablets are kind of a scam. The vitamins compete with each other and some, like b12, need to be in your mouth for a while to get absorbed. I’ve been trying to eat more organ meats, grow some of my own veggies, and take some vitamins like magnesium.
Unsure what else to do