What is the difference between the red, blue and green top?

Yakult Original (red top) and Yakult Balance (blue top) and Yakult Plus (green top). They all contain the same number of our unique bacteria; however, Yakult Balance is enriched with vitamins D & E. Yakult Plus is rich in vitamin C and contains fibre. Yakult Balance and Yakult Plus contains less sugar and fewer calories than Yakult Original.