Natural. Free-range. Cage-free. Grain-fed. Hormone-Free. Antibiotic-Free. These marketing buzz-words mean no than the “miracle” health elixirs sold off the back of wagons in the 1850’s. They are simply suggested terms that imply goodness and make you feel better about what you are consuming to build brand loyalty. Oftentimes manufacturers will do everything they can do to offer the impression that they have your best interest in mind, but actually do the opposite to gain market share and increase profit. A good business model actually, but not great if you are a consumer trying to get to the bottom of what you are actually eating.
Here is a quick example (link) by Michael Pollan showing how we can bypass the maze of the processed and find real food.