Quote:
Originally Posted by Dodger
Just because something is less expensive does not mean that it is inferior. What scientific studies do you have that show that paying more for a multi-vitamin makes it better?
|
If you have not found the answer to your question with all these posts over all these years ... I doubt there is anything anyone can say to help you out. We have been through this several times already ... but for those with an open mind and want to learn ... here goes once again.
It typically is three things that spell out the difference between cheap vitamins and expensive vitamins:
1. The number of different vitamins / minerals / antioxidants
2. The amount of each ingredient
3. The form of each ingredient
A quick example. Centrum vitamin A says "Vitamin A 3500 IU (29% as Beta Carotene)". Meaning 71% is synthetic vitamin A. Whereas a high priced vitamin says "Pro-Vitamin A 15,000 IU (as natural carotenoids: beta carotene, alpha carotene, lutein, zeaxanthin, cryptoxanthin) Betatene®". Four times as much and 100% natural mixture of different carotenoids (all the great things in vegetables that are the reason you are suppose to eat veggies).
Now which do you think will help your body more?
#1 is easy to compare -- except you have to look at the other two also. If some vitamin says 10mg of CoQ10 - well 10mg won't do anything. Also if a cheap vitamin says "synthetic" while a more expensive brand says "all natural mixture of different sources" (as in the vitamin A example above).
#2 is easy to compare -- with the same caveats as #1. The cheap vitamins have the RDA values whereas the expensive vitamins have optimal values.
Regarding #3
First there are synthetic versions of most vitamins and minerals that the body does not like. For example, synthetic vitamin A. Some would even say synthetic vitamins are toxic to the body unless they are taken in small doses. If most vitamins were synthetic -- I would agree that synthetic vitamins are of little use, waste of money, and could be dangerous. Just like prescription drugs (which you can think of as synthetic supplements).
But natural forms of these same vitamins and minerals would be of course more expensive to produce -- so would cost the vitamin manufacturers more -- which costs consumers more.
For example, see
http://www.greatvistachemicals.com/vitamins-vitamin/
In most cases vitamins, minerals, antioxidants, herbs, etc can not be patented and so therefore everyone sells generic versions. But some companies do a lot of research on how they can get better results, get the supplement to be better absorbed, get the supplement into one form or another in the body, etc. Then these results are patentable, and the company can charge additional money for this version of the vitamin.
The body converts vitamins / minerals / supplements into other chemicals / hormones / amino acids / proteins which in turn converted into more chemicals (etc). The chemical pathways are kind of like branches on a tree.
How your body determines which of these pathways to trigger depends on what your body needs and what other chemicals / hormones (etc) your body has that are involved in the pathway. So your body may say "I really need to create this chemical -- but I don't have enough of vitamin X and mineral Y".
So different forms of a supplement can get it further down one of these pathways. So one company can say "form A is better because it gets it further down this pathway" while another company can say "form B is better because it gets it down this other pathway"
Hence, why I stress to people to take a "mega" multivitamin -- give your body as many of the basic nutrients it needs -- and then it has the resources to follow whatever pathways it needs to follow.
So now that you understand the basic differences -- compare this:
http://www.centrum.com/products/labeling_centrum.asp
to this:
http://www.vitacost.com/NSI-Synergy...-3-60-Packets-1
notice:
1. The number of different ingredients
2. The amount of each ingredient
3. The form of each ingredient.
I don't like to post these next links because I look like I am trying to sell Vitacost. The truth is -- Vitacost provides a lot of this information that the companies do not provide. If you know of other companies that provide this information then please post it.
http://www.vitacost.com/Company/aboutnsi.cfm
This next web page lists most of the patented forms of supplements that are available. To find out why that version of the supplement is better requires you to google that brand name and the manufacturer's website should come up and you can learn a lot more about each supplement.
http://www.vitacost.com/company/index.cfm