There aren't many things that visually express cultural differences better than food. Every human on the planet needs to eat. The way we purchase and prepare our daily nourishment is unique. It's different for every family and community.
Maybe that's why I love taking pictures of food (well, besides the fact that I love eating). It's a glimpse into an absolutely mundane, but completely fascinating part of everyone's lives.
I imagine the average shopper in the Kalay markets would experience a similar feeling of fascination walking into a Wal-Mart in East Tennessee.