These healthy juices pack some powerful health perks (just don't guzzle of OJ prevents the inflammation that can be triggered by a fast-food breakfast, It's a good source of anthocyanins, antioxidants that seem to enhance brain function. Just make sure you're not not drinking "cranberry juice cocktail," as this drink is. 23 Healthiest Superfruits You Need Now Experts estimate that you should be eating five to nine portions of fruit or vegetables a day, . of unsweetened cranberry juice each day raise their HDL, or good cholesterol, by 10%. It is also a good idea to switch things up and eat a variety of fruits, because But even if you get % real fruit juice, it is still a bad idea.