With the multitude of preventive cures on sale, how do we know w/c health products to believe in or patronize?

We live in an era on brings back to consciousness of the health. And, along with the nÃºmero of the health/medecines in the market, with the excessive publicity, the pÃºblico can put in risk its health. ÂCuÃthey are to them the things that we must know how to choose wisely at your service?