Astral Codex Ten

Hadza

3 min read

Hadza

Article

Hadza is a recurring concept in the Astral Codex Ten archive, appearing 2 times across 2 issues between June 23, 2021 and April 22, 2022. The archive places it in contexts such as “no evidence of nutritional benefit for being or marrying a well-reputed Hadza hunter”; “how many IU the Hadza are getting from sunlight”. It most often appears alongside Arizona, Atlanta Black Crackers, Atlanta Crackers.

Metadata

  • Category: Concepts
  • Mention count: 2
  • Issue count: 2
  • First seen: June 23, 2021
  • Last seen: April 22, 2022

Appears In

Source Context

Recovered passages from the original issue text. When the raw archive preserved outbound links inside the source passage, they are listed directly under the quote.

Links For June
June 23, 2021 · Original source
26: Contra every evolutionary psychologist ever, there is no evidence of nutritional benefit for being or marrying a well-reputed Hadza hunter , probably because everyone shares food communally anyway. Usual disclaimer that not all hunter-gatherer groups are the same, modern hunter-gatherers are unrepresentative of ancient ones, etc.
Inline links: no evidence of nutritional benefit for being or marrying a well-reputed Hadza hunter
Contra Hoffman On Vitamin D Dosing
April 22, 2022 · Original source
Krzyscin 2016 tries to estimate how many IU the Hadza are getting from sunlight, and finds it’s 2,000, not 16,000. I can’t follow their reasoning fully, or figure out exactly where it diverges from Ben’s, but I think it involves them 1) avoiding the midday sun, and 2) being black.
Inline links: Krzyscin 2016
Luxwolda 2012 measured Vitamin D levels in the Hadza and found values from 28 to 68 ng/ml, averaging about 44. How many IU of Vitamin D supplementation would it take to get an average American to 44 ng/ml? Garland 2011 exists to answer this question for us:
Inline links: Luxwolda 2012, Garland 2011
It finds about 2000 IU, which makes no sense to me - Krzyscin said the Hadza were 2000 IU total, but Garland is saying that you need 2000 IU to get from current American levels (about 3/4 of the Hadza’s) up to the Hadza’s.