So, How Do I Know?
The simple answer to that question is that, sadly, in the vast majority of cases, you don’t!
To help you, there is a table of the HYPERLINK "http://webbiz99.com/cancer/blended_standard" Top 25 Blended Standards results that might give you some guidance, especially if the nutrient supplement that you are already taking appears here, (so you know that you are on the right track!) or if you are just deciding which supplement is going to be right for you.
Manufacturers who do not appear would not, of course, shout about the fact that their product does not appear in the top 25 of the only independent supplement test results that are currently available.
And, some very, very well known names are noticeable by their absence, so if you are a consumer or distributor of products that do not appear in this table, then you may think that you have some cause for concern.
The problem is, of course, that there is probably not a supplemental product in the market that does not quote some research results on the label or the packaging that conclusively proves that their product is undeniably the best,.
These ‘results’ are obviously biased towards the product in question, no matter how true the test results might be, and so they cannot be unquestionably accepted as genuine or 100% trustworthy.
So, you must do whatever research you can on the internet, and, if at all possible, consider using or switching to one of the products that is listed in the HYPERLINK "http://webbiz99.com/cancer/blended_standard" Top 25 Blended Standards table.