By Javier Luque Visit a grocery store and you'll find a great variety of foods to choose from. Even though some of these are healthy, many are highly processed and not so good. This can lead to problems in your gut, which is why probiotic supplements are a good idea to keep your digestive balance on track. Luckily, they are very easy to find as they are growing in popularity. So what are probiotics? For the uninitiated, they are a form of healthy bacteria that is essential for keeping your digestive health in tip top shape. Our bodies have...