Antioxidant supplementation for the prevention of kwashiorkor in Malawian children: Randomised, double blind, placebo controlled trial
Many of these benefits have been proven repeatedly in double blind, placebo controlled studies, some only noted in a limited number of test subjects.
Methods A random, double blind, and placebo control study was conducted.
So, in fact, this double blind placebo controlled study does not guarantee safety or efficacy because the test leaves far too many questions unanswered.
The study was a double blind placebo controlled study adequately powered for OS as primary end-point.
DESIGN: Randomized, single blind and placebo control prospective study based on patients.
The answer is the "gold standard" double blind, placebo controlled study.
