Dear Rhoda and all!
I think the warning below is a hoax.
As we a complex multicellar organisms, our bodies are capable of maintaining homeostasis (meaning stable conditions such as body temperature, and more relevant to this post, blood pH)
When we ingest food, including fizzy drinks, it's passed through our stomach which is pH2 (very very acidic), probably 1000x more acidic than phosphoric acid. But as stomach contents are enters into the small intestine, it is neutralized to about neutral pH and would remain so as it is absorbed into the blood/body.
Our blood contains buffering components which will not allow the pH to vary between plus minus 0.1.
Phosphate is an essential component of our bodies, it is used to make DNA. So there is really no harm in taking in the phosphate (in the form of phosphoric acid).
There had been recent reports (in reputable scientific magazines/journals) that taking dairy to imrove calcium intake as myth. most of the early studies on the benefits of dairy intake on calcium intake and health were funded by the dairy industries in the States.
Go figure!
Originally posted by Rhonda:
Here's an extract from a UK mag I was reading :
"We all know that fizzy drinks, even the diet versions, are bad for teeth, but some health experts are now worried that teenagers who regularly consume fizzy drinks and don't eat much dairy may also be damaging their bones. The fizz in fizzy soft drinks is created by adding phosphoric acid, which the body tries to neutralise by drawing calcium from the bones, this weakens them increasing the risk of osteoporosis (brittle bones) later in life."
Think twice before you pick your favourite soft drinks!