One of the best fermented foods to have is the South Indian Breakfast of Idli( Iddly).

This batter can be bought in Indian Grocery stores or prepared at home

A similar batter is used to make Indian pancakes called Dosa as well.

There are also a host of Appams & String Hoppers made with different fermented batters in South India and SriLanka.

In addition many South Indians enjoy fermented rice which is basically leftover cooked rice that gets soaked in water and left overnight. Its a staple breakkie or Lunch for many poor families with some Yogurt, pickle, chutney or a green chilly.

1. https://www.quora.com/Is-idly-truly-the-healthiest-Indian-br...