The tier diet is all you can eat.. .unless... you can take a food figure out if it will make you have low or high pH, find out how much it has of the 4 minerals, and see what kind of hormones it has; then track it on www.fitday.com (without asking me how much does this certain food have because I don't have time to look it up), what kind of ions it has (food contains ions as well), the temp to eat it and how it all works together when put in a recipe. Almost no one wants to do this so only eat what is on the tiers.
Every food item on the tiers has been researched for may days before it went on there. Rarely do we find a new food and when we do we post it.