Probiotic supplement and product sales were up 12.4% in 2015, which indicates that consumers demand this good bacteria that exists as a byproduct of fermentation. The gut houses 70% of the entire immune system, so efforts to have a healthier gut can have a really big impact on overall wellness. In addition to aid with digestion, research indicates that the benefits of probiotics help with oral health, skin conditions, and cold prevention. Products that deliver digestive health benefits range from waters, yogurts and smoothies, to kombuchas and vinegars in a variety of beverage flavors. All of these products currently can be found in the refrigerated section, though developing a shelf stable beverage with probiotics remains a priority.