The phrase "to follow the food" means to go wherever there is a plentiful supply of food or to go where the food is leading you. It implies following a trail or journey that is driven by the availability or abundance of food. Full definition
While I am not a fan of following food trends just because, I do find that sometimes it takes a food trend to help me realize a food's full potential. (urbanblisslife.com)
My observation is that most people don't follow the Food Pyramid's recommendations. (thespruce.com)
Now, do food companies have to follow food safety laws? (mindbodygreen.com)