I took 3 of these for breakfast as an antioxidant every day for about 3 weeks and started to feel sooo sleepy and tired all the time, almost dizzy and disoriented. I couldn't understand why, then I suddenly remembered something about blueberries lowering bloodsugar or something, and I also lost all craving for sugar after I started taking it, so I ate a lot of sugar to see what would happen and after 10 min. I started to feel normal and alert again. I'm truly surprised a berry extract can have this profound effect. I give 5 stars for effect, but be sure it is right for you. I don't think this is for me.
Posted by iHerb Customer on July 9 2013 | Verified Purchase
I do not understand why supplement companies use oils that can so easily become rancid. The rest of the ingredients look fine. But, when I cut open the capsule to test the freshness, both I and my boyfriend were sicked by the taste that worsened by the second. Natural Factors does make other good products like biosil which I'll continue to use despite this poorly formulated supplement. I'll stick with eating real blueberries for now.
Posted by iHerb Customer on September 30 2017 | Verified Purchase
Dark rancid tasting sludge that comes in a heavy duty capsule. Makes me feel ill after consuming it. Hard to believe that it comes from blueberries - if I was to guess, I would say it is from the leftover residues of an industrial blueberry processing plant. I would doubt that anything that rancid tasting has much antioxidant capability.
Posted by iHerb Customer on October 30 2008 | Verified Purchase
I take 3 pills 3X a day and I'm still slow and dumb. I know this takes time to improve concentration, but I think wild blueberry extracts will work better.
Posted by iHerb Customer on April 20 2009 | Verified Purchase
and the shipping with IHERB was super slow. so averall this gets a one star.
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