Here is a link to a recipe for sauerkraut you can make at home http://paleoleap.com/fermented-food-recipes/. Kombucha is a fermented sweet tea and can be purchased at Cornucopia among other places. Kimchi or Korean fermented cabbage is also delicious and can be purchased from any larger asian store, or you can make your own with this recipe here. Quality Kimchi is good because it contains a range of vitamins such as vitamin A, vitamin B1, vitamin B2 and vitamin C. Kimchi is also rich in essential amino acids and minerals such as iron, calcium, selenium. Kimchi has an impressive assortment of powerful antioxidants and provides an additional benefit of probiotics as well in the form of lactobacillus bacteria. It contains numerous healthful components including capsaicin, chlorophyll, carotenoids, flavonoids and isothiocyanates with low amount of fat and sugar. But what about all those Pro-biotic yoghurts? These generally should be avoided, not especially because they are yoghurt but because of all the sugary flavourings they contain. If you make your own and don’t add processed sugars and flavourings – so it is raw, free from processing, unpasteurized, full-fat, close to nature, and unsweetened, then it could be beneficial if you have no current gut problems. If you do have gut problems then avoid dairy in general as it is the protein A1 casein that will harm your gut. Stick to the fermented foods. Gut problems can be at the root of many physical conditions.