Testing which vitamins work best?

Click For Summary

Discussion Overview

The discussion revolves around the effectiveness and absorption of vitamins, particularly how to test their dissolution and absorption in the body. Participants explore the implications of vitamin solubility and retention in the gastrointestinal tract.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions the relationship between acidity and vitamin dissolution, seeking clarification on the proposed testing method involving a chemical mixture.
  • Another participant notes that the effectiveness of vitamins can vary based on their specific effects, indicating a need for clarity on what "works best" means in this context.
  • A different participant explains that while dissolution testing is relevant for pharmaceuticals, vitamin absorption is more complex, mentioning that fat-soluble vitamins may not dissolve well in the stomach but can dissolve lower in the GI tract.
  • One participant introduces the concept of vitamin retention, highlighting that many compounds may not be retained in the body and are excreted shortly after consumption, which raises questions about the value of supplementation.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between vitamin dissolution, absorption, and retention, indicating that multiple competing perspectives remain without consensus.

Contextual Notes

Some assumptions about the testing methods and the definitions of "works best" are not fully articulated, leaving room for interpretation. The discussion also highlights the complexity of vitamin absorption and retention, which may depend on various factors.

KingNothing
Messages
880
Reaction score
4
My girlfriend and I were talking, and she said that a way to tell if a vitamin is absorbed or not, is to mix a few different chemicals (can't remember what), and to see how the vitamin dissolves in this mixture. She said that it's because this mixture will have the same acidity as your stomach.

Does this make sense to you? I didn't think dissolution was about acidity at all. So, I'm looking for input on this.
 
Chemistry news on Phys.org
Well I guess it would matter on what you are looking for (in terms of works best). I mean all of the vitamins have their specific effects. So, I don't really understand what you mean by "works best".
 
This is exactly the way in which many pharmaceuticals are analyzed for dissolution. Remember that absorption is more complicated than that, however. Some vitamins are fat soluble and may not dissolve in the stomach very well but will dissolve lower in the GI tract. A good quality vitamin pill should fall apart in the stomach in my opinion. Absorption can occur anywhere in the GI tract, though.
 
As a side note: assume vitamins are absorbed, then you have the issue of retention.

You may have noticed that urine becomes darker yellow after consuming vitamins.
This is because a lot of the compounds you got in the pill are out of your system again in an hour or two. No retention.

Physicians who think vitamins are wasteful, sometimes talk about urinating away money.
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 19 ·
Replies
19
Views
10K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K