There are many things that can upset the gentle natural balance of "friendly" bacteria in the gut. For example, changes to your diet or the use of antibiotics can affect gut flora. Ever more of us are now choosing to take a probiotic supplement to increase our intake of these microscopic helpers. The Everyday Advanced Multi-Strain Formula from Bio-Kult is well-named as it contains an incredible 14 different bacterial strains. In each capsule you will find: Lactobacillus paracasei PXN® 37™ Lactobacillus plantarum PXN® 47™ Lactobacillus rhamnosus PXN® 54™ Bacillus subtilis PXN® 21® Bifidobacterium bifidum PXN® 23™ Bifidobacterium breve PXN® 25™ Bifidobacterium longum PXN® 30™ Lactobacillus helveticus PXN® 35™ Lactococcus lactis ssp. lactis PXN® 63™ Streptococcus thermophilus PXN® 66™ Bifidobacterium infantis PXN® 27™ Lactobacillus delbrueckii ssp. bulgaricus PXN® 39™ Lactobacillus helveticus PXN® 45™ Lactobacillus salivarius PXN® 57™ These bacteria are carefully freeze-dried to not only preserve the right to the end of the best-before date but also so they can pass undamaged through the stomach. Once in the gut, they are then free to grow and thrive. While many customers opt to regularly top up their gut bacteria, this formulation is also designed for shorter-term use. For example, Bio-Kult Everyday Advanced Multi-Strain Formula can be taken alongside a dose of antibiotics to limit the damage that such medications can do to gut flora. Lastly, this supplement is suitable for vegetarians, having been approved by the Vegetarian Society.