According to the information you provided, I think you might be talking about the "A Foodie's Survival Guide". This is a fantasy novel about a foreign continent. The main character is called Fan, and he's a big foodie. He ate and ate along the way on the Otherworld Continent. He ate all kinds of precious delicacies and could even eat the eight primordial treasures. After eating it, his strength would also increase. I hope you like my recommendation. Muah~