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Requirements a product to be considered probiotic

  1. Reaches the intestines alive
  2. Improves the bowel movements
  3. Prevents the growth of harmful bacteria in the intestines.
  4. Aids digestion in the intestines and helps in reducing harmful substance.
  5. Has a beneficial effect on human health.

Lactobacillus casei strain Shirota in Yakult

  1. The administration of Yakult maintains or increases the level of beneficial bacteria.
  2.  Lacticaseibacillus paracasei strain Shirota (LcS) suppresses the intestinal putrefactive fermentation in the intestines.
  3. Absorbs potent mutagens and suppresses mutagenesis.
  4.  Lacticaseibacillus paracasei strain Shirota (LcS) has been known to exhibit anti-tumor activity.
  5. Protective effect on infection.


Kinds of Bacteria

Harmful Bacteria - Produce toxic substances in the intestines


  1. Diarrhea / Constipation
  2. Hypertension
  3. Infections
  4. Immune suppression
  5. Cancer
Beneficial (good) Bacteria - Produce substances good to our intestines


  1. Assist in digestion and absorption of nutrients
  2. Prevent colonization of pathogens
  3. Vitamin and protein synthesis
  4. Stimulation of the immune system
  5. Promote health