@dr.bioforever: Yakult is a dairy fermented drink that was developed in the 1930s by a Japanese microbiologist, who came up with a special strain of probiotic bacteria for this product (Lactobacillus casei Shirota). . Yakult was intended as a probiotic that could contribute to intestinal health. The idea behind Yakult (just like other probiotic products) is to ingest lots of living beneficial bacteria with the hope that some will make it to the gut and once there they will promote digestive health by producing beneficial compounds and/or by inhibiting the proliferation of harmful microorganisms. . It is incredible the number of living bacteria that there are in a single drop of Yakult! It has been calculated that in the 65ml bottle of Yakult that I showed in this video (which is the way Yakult is typically sold) there are in the range of 6.5 to 10 billion colony-forming units of bacteria (each colony-forming unit represents a living bacterium capable of dividing and forming a visible colony). . So next time you drink some Yakult, keep in mind that what you are drinking is a tasty sugary drink (it has added sugars) that contains billions and billions of bacteria!! The majority of these bacteria will be killed by your stomach juices, but some of the bacteria will survive the stomach and will make it to your gut. Once there, they will reproduce and your gut will become their new home. . For this video, I used an Olympus CX31 microscope at 400x and 1000X magnification. #microscopy #microscope #Yakult #fermenteddrink #Lactobacillus #probiotics #drbioforever