An explanation of what happens when food is eaten, the creation of ash When we eat food it is broken down in the digestive tract. These digested foods leave behind a residue, ash. The ash is acidic, alkaline, or neutral.
High-protein foods (meat, dairy, grains, processed foods, etc.) leave an acid ash.
Fruits and Vegetables (there are a few exceptions) leave an alkaline ash.
Fats leave a neutral ash
The acidity or alkalinity of a food as a whole is not indicative of whether it will leave an acid or alkaline ash. Take an orange for example. Everyone knows that an orange is acidic. But when you eat the orange and it is digested, it leaves an alkaline ash behind.
Have you ever seen an oven after it has been cleaned? It incinerates anything inside and it becomes reduced to an ash. If you put an orange in an oven and pressed “clean”. The ash that would remain would be alkaline.
Building an Alkaline Reserve (like a bank account for the body)
The line of defense for the body against dietary acid is to have an alkaline reserve. The dietary reserve is made up of the minerals sodium, calcium, potassium and magnesium. These are derived from fruits and vegetables, not table salt. The body uses these minerals to buffer or neutralize dietary acid. The primary mineral used of these is sodium (again not table salt). It is stored in the liver and muscles to be ready for use. This supply is not unlimited, and if not replenished it will be depleted and the body will have to draw on other minerals like calcium to buffer the acid. It will take this from your bones and teeth if necessary.
The reserve is like having money in the bank. You can spend it, but if you don’t replenish it, eventually the account will be empty and there is nothing left to spend.
Summary: Fruits and vegetables build up your Alkaline Reserve (pad your bank account). High-protein, meat, poultry, fish, dairy, grains, processed foods, etc. drain your reserve (empty your bank account). You want to eat more fruits and vegetables so you can enjoy the “other” foods that you eat without negatively affecting your health.
What about Roughage?
Ash is a metabolic residue that is left after digestion. The residue from what we call roughage passes right through the body and is never “taken in” or digested. The cellulose in fruits and vegetables is never digested, but goes straight through the bowels.