I read the thread till about page 15 so sorry if this has already been answered.
Regarding the question of why we would need more vitamin C than from an orange if thats how nature designed us etc.
Short answer: Nature isn't perfect and neither are we.
Long answer: I read Linus Pauling and Irwin Stone's Vitamin C books about 7 years back... the numbers might be off but the gist of all the different
arguments are as follows:
Most animals make their own vitamin C by converting glucose to vitamin C with the help of 5 enzymes. In humans, apes and guinea pigs the last enzyme
is missing, so we can't do it. The animals that CAN make it, make lots of it, and make a lot more if they get sick - a rat can make the human
equivalent of 20-30 grams of Vitamin C in a short time if it falls sick.
Humans have an increased need for vitamin C during times of sickness/stress as well. This is evidenced by the amount ingestable till diarrhea sets in.
Joe Blow takes just 2 grams by mouth every day. If he takes 3, the body refuses to absorb it and it goes down to the bowels and causes diarrhea. But
if Joe Blow got sick, magically, he can take 5 or even 10 or 20 grams before diarrhea sets in. His body needs more.
Big Question: Why gram sized amounts when an orange only has about 60mg?
Because, unlike other vitamins, vitamin C wasn't really meant as a food based vitamin, but rather as an endogenously produced vitamin by the body.
The hypothesis is, once upon a time Man was just like the other animals making his own vitamin C endogenously. But he lived in dense jungles with
plenty of Vitamin C rich foods as a staple. As these things go, any individual man who evolved to not produce vitamin C from glucose stores and
rather, rely on outside sources would have a energetic advantage over his peers... and gradually the genetic mutation spread through the genepool.
Unfortunately for us, we grew big brains and left the jungles... and suffered reduced lifespans and death ever since. An evolutionary quirk did us
To round it off: Is liposomal Vitamin C better than just taking normal Vitamin C by mouth till just before Diarrhea hits?
Answer: No clue, its debatable either way.
Im going to buy me a box of Liposomal C and see if it has a huge effect on me. One benefit I can think of is as its based on lipid absorption,
liposomal C would not compete with glucose for absorption in the gastrointestinal tract so it will always have high bioavailability, whereas normal
Vitamin C will only have high absorption taken away from starchy/carby meals.
edit on 4-8-2013 by evilbaga because: (no reason given)