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All Content on Helen Keller International's Vitamin A Supplementation Program

Last updated: November 2020

A core part of our research process is following the progress of charities to which GiveWell directs a significant amount of funding. On this page you can find links to all of our content on Helen Keller International's (HKI's) vitamin A supplementation program, one of our top charities.


Blog posts

For all blog posts on HKI, see the HKI blog category.

Notes from conversations

For notes from conversations with HKI, see our conversations page.

Site visit

In October 2017, GiveWell staff visited HKI's program in Conakry, Guinea. For notes and photos from the trip, see the site visit page.

Additional content