Global Alliance for Improved Nutrition (GAIN) | 97,537 followers on LinkedIn. Healthier Diets for All | The Global Alliance for Improved Nutrition (GAIN) was launched at the UN in 2002 to tackle the human suffering caused by malnutrition. Working with partners, GAIN aims at making healthier food choices more affordable, more available, and more desirable. GAIN’s purpose is to improve nutrition outcomes by improving the consumption of nutritious and safe food for all people, especially the most vulnerable.