Kombucha is a fermented drink made from green or black tea. It is created by adding a scoby or "symbiotic culture of bacteria and yeast", to a room temperature solution of tea and sugar. Over a period of a week to two weeks, depending on the temperature of the room, the scoby will feed on the sugar and give off a rich assortment of probiotic bacteria. Check out this short video explaining the basic steps of making kombucha along with a few tips and recipe ideas.
I have personally made water kefir and kombucha. Both of these can be flavored in a "second ferment" with fruit, spices or other flavorings to make them unique and appealing even to kids.
To learn more about this, you can visit websites such as culturedfoodlife.com or fermentedfoodlab.com. Be a bit cautious with store bought fermented items as often there is much sugar and salt added. If you've tried fermented foods, drop me an email and share your favorite recipe. I'd love to share it here on my website.
Remember, a healthy gut is key to a healthy body.