But with little federal regulation and few long-term human studies to back them up, the actual effectiveness of supplements is still open to debate.

However, its actual effectiveness has never been systematically studied.

Evidence as to the actual effectiveness of this method is undemonstrated.

In order to be considered for use, pesticides had to undergo 120 tests with regards to safety and its actual effectiveness.

Unfortunately, gelatin is a poor medium for evaluating actual effectiveness.

No information on the actual effectiveness of these measures propaganda.

Stating that the actual effectiveness and saftey is not certain.

The actual effectiveness among users, however, is only between 80% and 90%.

I also have concerns over the actual effectiveness of this agreement.

I do wish there was more information about its actual effectiveness with Fibro.