An informative and eye-opening read. I was hoping for more about current day sourcing of vitamins, and for a US audience, the risk of full dependency on foreign countries we keep antagonizing when the vast majority of our "food" requires fortification. Still, the bigger takeaways are relevant and something we need to proactively arm ourselves with to protect against the supplement industry. 

*Eat whole foods, mostly plants.
*Fats + vegetables * cooking = access to fat-soluble vitamins (ex: A, D, E, K) so stop being terrified of fat (ehem, pre-70s folks).
*Unless you are confirmed deficient in a particular vitamin, adding more, even in big doses, doesn't do anything (ex: additional vitamin A, hoping to improve night vision is a nope).
*The people buying vitamins and supplements are in the population least in need of vitamin supplementation; it's poor people and those with no access to a variety of minimally processed foods.
*The lack of FDA and USDA oversight and consumer protections from the supplement industry is appalling. Learning the history of and the influence of how we got to where we are today has changed my perspective: supplements are not simply benign options bordering on useless, they are unregulated and frequently dangerous. No amount of charming, enthusiastic PR will change my mind.
*We are so, so ignorant of the complexities involved in nutrition and variances from one person to the next that it's impossible, and unethical, to prove absolutes in these areas of science. 

I'm interested to find what's changed in the last 10 years.