Self Determination Theory (SDT)
Self-determination theory (SDT) is a macro theory of human motivation and personality that concerns people’s inherent growth tendencies and innate psychological needs. It is concerned with the motivation behind choices people make without external influence and interference. Practically, it states that for life to be happy and meaningful, we all (universally) need a good extent of life situations where we feel we have competence, autonomy, and relatedness (ability to relate to others and they to you).
- Wikipedia (first two points, last point in The Good Life Project podcast below)
“Nutrients” in the tweet should have been “nutriments”, which means something that nourishes (Merriam-Webster Dictionary), which is close enough to “nutrients” that the definition source lists nutrients as a pretty close synonym.