The Global Alliance for Improved Nutrition (GAIN) is a foundation based in Switzerland focused on reducing world malnutrition.

Evaluation

GAIN implements a wide range of programs, only one of which—its universal salt iodization (USI) program—has been evaluated by GiveWell. In GiveWell's assessment, the cost-effectiveness range of salt iodization is very close to that of their priority programs (GiveWell 2014), though they are less certain about the cost-effectiveness of GAIN's USI program (GiveWell 2016).

USI has been a GiveWell standout charity since 2014, and is also featured by The Life You Can Save in their list of "best charities" (The Life You Can Save 2021).