On upgrading supplementation.
Food can’t just be looked at as the sum of its parts.
It’s more than just macros and micros and calories.
The human experience of food, combined with the biological, microbiological, and ecological, is a much more holistic approach.
Supplementation can help fill a deficiency in diet or lifestyle that you might not be getting from food, either because of your age, geography, or the way you live your life.
For example, when I wasn’t living in California, I used to supplement D3 because I wasn’t getting the level of sun exposure I do now.