Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
This stuff is HORRIBLE. Agree with other reviewers who called this horse feed. Paid good money for a small bag and couldn't eat half a bowl, that's how bad it is. Went into the trash can since you can't return food items on Amazon.