Here's the full story. Notice that the lab testing vitamin A in MS got a $900,000 grant from the Hilton Foundation. That will keep some people employed in 2014. Lucky LA BioMed!http://www.eurekalert.org/pub_releases/ ... 010614.php
The reason why research labs test one vitamin or one supplement at a time is because it's a way to get funding. It is also easier to compare a sugar pill to a vitamin pill as a "double blind/placebo controlled trial", rather than test a complete lifestyle. Dr. Swank learned that in the 1950s, when other researchers refused to consider his research in a low fat diet and nutrition for pwMS, since it wasn't blinded. Dr. Terry Wahls runs into the same roadblock today. I wish a foundation would give the ISNVD or Dr. Wahls a million bucks.....
Vitamin A is certainly a hugely important vitamin in the human diet, it effects eye health, cellular health and our immune system, and is essential for people with MS. We get it by eating carrots, spinach, tomatoes, kale and other colorful vegetables. It's not one vitamin that ensures good health--it's a whole lifestyle.