Yakult plus contains 20 billion L. Casei shirota. These friendly bacteria are scientifically proven to reach the gut alive and increase the bacteria in the gut!* Yakult increases the bacteria in the gut!* *L. casei Shirota bacteria increase both the lactobacilli and bifidobacteria in the gut Supports immunity and helps lower fatigue** ** Vitamin C supports the normal functioning of the immune system and contributes to the reduction of tiredness and fatigue. Each bottle of Yakult Plus accounts for 30% of the EU reference intake for vitamin C. Reduced sugar*** Kcal fewer calories and reduced sugar*** *** Yakult Plus contains 70% less sugar and 33% fewer calories than Yakult Original.