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Mono- and diglycerides increase vitamin A absorption?
Was reading an article about the nutritional characteristics of bread, and was surprised by this bit:
”A fear exists, among medical professionals, that emulsifiers, some of which are added to bread, may promote the absorption of otherwise non-absorbed substances, some of which may be carcinogenic. Emulsifiers include monoglycerides, diglycerides, and poly compounds which usually go by variations of the words 'stearate' and 'sorb' (ea. stearyl, polysorbate). Although glycerides are naturally produced by the body, this does not prove that their artificial use is safe. Some emulsifiers have been found to increase vitamin A absorption tremendously. This may be dangerous if the rest of an individual's diet supplies a large amount of vitamin A. Dr. Anton Carlson expresses the view that many have by stating, n...Small amounts of injury in certain percentages of the people may go undiscovered for generations. This is a serious problem involved in the changes of such a fundamental thing as the type of food for mans (Marine & Van Allen, 1972).”
Source: http://www.eap.mcgill.ca/publications/EAP35.htm
How crazy is that?! Isn’t that stuff in most commercially produced bread and baked goods?
Stupidly enough, a few days ago I made bread with a dough enhancer that contains emulsifiers. *facepalm* Not gonna use that again anytime ever.
Ugh, yet another thing to be wary of. On a happy note, since we are already avoiding A, it might not be such a huge problem.
On the topic of bread/baked goods, I'm actually thinking of using sifted whole wheat flour instead of the all-purpose fortified one.
While looking up mono and diglycerides, it mentions that they contain trans fat, but that since they are not considered lipids, they don't have to be declared. What a crooked world we live in!
I'm throwing an hypothesis here: is it possible that trans fats also increase vit A absorption?
При поиске моно- и диглицеридов упоминается, что они содержат транс-жир, но поскольку они не считаются липидами, их не нужно объявлять. В каком кривом мире мы живем!
Я выдвигаю здесь гипотезу: возможно ли, что транс-жиры также увеличивают поглощение витамина А?
I have always assumed that the PUFA always more conducive to the absorption of fat-soluble vitamins, including vitamin A than saturated fats. As i know, saturated fats are not require to be absorbed to the liver through the bile for metabolism, therefore, and they will not carry fat soluble vitamins to the liver (maybe not so effective as unsaturated fats), but unsaturated fats, which are require to be transferred for metabolism to the liver, will be bring with these binded fat-soluble vitamins together too and therefore improvement their absorption. Interesting how true this is.
I wish I could read the original source of that claim. Not doubting it I just want to see how much it increass absorption.
Regarding fats, all fats increase VA absorption. I posted some studies in another thread, butter increased vitamin a absorption even more than lard or peanut butter.