In article ,
"Peter Jason" writes:
| From guano, ie bird droppings, therefore from a bird which is an animal and
| not a plant.
| If you want untainted phosphate you may have to make it from elemental
| phosphorus.
|
| "Christopher Green" wrote in message
| om...
| (Keith Michaels) wrote in message
| ...
| My can of baking powder lists Calcium Phosphate as an ingredient
| and someone told me that it is a slaughterhouse byproduct
| derived from animal bones. This is troubling to a vegetarian.
| Is it true? Are there animal-free sources for baking powder?
|
| Set your mind at rest. Most calcium phosphate in the food and animal
| feed trade is produced from phosphate rock, not bone meal.
|
| --
| Chris Green

What is the connection between mineral phosphate and guano?
It may not matter to vegetarianism, as I know all materials of the
earth cycle through animals and plants at some level, just curious..