This explains iron absorption in humans:
http://sickle.bwh.harvard.edu/iron_absorption.html
Quote:
|
The physical state of iron entering the duodenum greatly influences its absorption however. At physiological pH, ferrous iron (Fe2+) is rapidly oxidized to the insoluble ferric (Fe3+) form. Gastric acid lowers the pH in the proximal duodenum, enhancing the solubility and uptake of ferric iron (Table 1). When gastric acid production is impaired (for instance by acid pump inhibitors such as the drug, prilosec), iron absorption is reduced substantially.....Figure 1. Iron absorption. Iron enters the stomach from the esophagus. Iron is oxidized to the Fe3+ state no matter its original form when taken in orally. Gastric acidity as well as solubilizing agents such as ascorbate prevent precipitation of the normally insoluble Fe3+ . Intestinal mucosal cells in the duodenum and upper jejunum absorb the iron. The iron is coupled to transferrin (Tf) in the circulation which delivers it to the cells of the body. Phytates, tannins and antacids block iron absorption.
|
The test in the video did not use an acid aqueous medium, so naturally the iron would not be soluble and would precipitate out. I don't think those were "filings" as those would be sharp and dangerous. I think the stuff adhering to the neodymium magnets was a fine chemical precipitate, and they were stuck to pieces of fiber that were floating in the slurry. Notice the "need" to add more water? This indicates a very small amount of precipitate IMO. If real iron filings were in that cereal you could pulverize it dry and run it over the magnets and get them that way.
I think the whole thing is suspect. The only thing proven was that iron in some form is in the cereal as advertized. But as filings? NOPE.
Also, this quote from Dr. Smith is not exactly accurate:
Quote:
|
The same can be said of many of the supplements we discuss here (e.g. B12). We try to buy/use methylcobalamin because it's better absorbed than cyanocobalamin, yet the cyano- is still what's used in most B-complex supplements.
|
Both cyano and methyl B12 are absorbed alike. The difference is that cyano is not active once it is absorbed in the body, and has to be converted into the active methyl form.
Cyano is used because it is inexpensive and historically that remains common. Just like magnesium oxide is inexpensive and remains common. (only recent studies show MagOx is not absorbed much at all--but doctors still cling to it and prescribe it!). There are many people using oral cyano B12 successfully because their bodies convert it well after it gets into the blood stream. Methyl B12 is better, because it is already activated and does not require conversion (which some people fail at genetically). There are absolutely no studies to show cyano or methyl are absorbed differently.
__________________
All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
************************************
.
Weezie looking at petunias 8.25.2017
****************************
These forums are for mutual support and information sharing only. The forums are not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider. Always consult your doctor before trying anything you read here.