Like for millions of people in developing and emerging market countries around the world, shopping for staple foods has turned from a necessity into a luxury for Selcuk Gemici.

The 49-year-old, who works in an auto repair shop in Istanbul and lives with his wife and two children in his father's house, says fresh produce is often out of reach, with his family living on pasta, bulgur and beans.

"Everything became so expensive, we cannot buy and eat what we want — we only buy what we can afford now," said Gemici. "My children are not properly nourished."