Why? Because up to 90% of their ingredients are destroyed by stomach acid and enzymes resulting in very low potency.Lastly, there is what's called the 'whole-food' supplements. It sounds good to obtain nutrients in their natural form, but unfortunately there are simply not enough of the active ingredients to be effective. Cognizera It would be easier and much cheaper to eat a handful of berries and some yoghurt.First, it must be scientifically designed to be safe and effective. http://guidemesupplements.com/cognizera/