#Japan #Tokyo #Yakult 400W #Shirota strain #immunity support

Yakult 400W Renewed for Enhanced Immunity Benefits

Yakult Honsha Co., Ltd., led by President Hiroshi Narita, is set to launch a revamped version of its popular probiotic drink, Yakult 400W, on October 5, 2026. The new product, named Yakult 400W Immunity & Bowel Health, will feature additional benefits aimed at maintaining immune function. This innovative update underlines the company's commitment to health and wellness through rigorous research in the field of immunity.

The Yakult 400W has been a staple probiotic drink, known for its unique Shirota strain of lactic acid bacteria, which provides several health benefits. With this renewal, Yakult 400W will now not only claim to improve gut health and regularity but will also promote immune function. This enhancement reinforces Yakult’s value proposition to better support consumer health.

Product Highlights

1. Each 80ml bottle contains 400 billion of Yakult’s proprietary Shirota strain.
2. Each serving provides 5 grams of galacto-oligosaccharides, which are known to promote beneficial gut bacteria.
3. The Shirota strain is specifically linked to maintaining immune function and improving gut health.

The inclusion of galacto-oligosaccharides helps enhance the overall gut environment, promoting beneficial bacteria such as bifidobacteria, which contribute to digestive health and improved bowel movements. These benefits make Yakult 400W Immunity & Bowel Health a functional food worth considering for anyone aiming to boost their health.

Functional Claims

This product comprises living Shirota strain bacteria (L. casei YIT 9029) and galacto-oligosaccharides that effectively reach the intestines. Research indicates that the Shirota strain plays a crucial role in maintaining healthy immune function by acting on dendritic cells (cDC), while galacto-oligosaccharides have proven benefits in increasing good bacteria and promoting regular bowel movements.

It’s essential to note that, unlike specified health foods, this product has not undergone governmental evaluation for its functionality or safety, although scientific evidence supporting its claims can be found on the Consumer Affairs Agency's website. Yakult’s approach emphasizes a balanced diet comprising staples, main dishes, and side dishes, reminding consumers of the importance of overall nutrition.

Product Information

• - Product Name: Yakult 400W Immunity & Bowel Health
• - Category: Lactic acid bacteria beverage
• - Volume: 80ml per bottle
• - Suggested Retail Price: 100 yen per bottle and 700 yen for a pack of 7 (both prices excluding tax)
• - Sales Channel: Direct sales by Yakult ladies through home delivery.

The launch aims to sell approximately 466,000 bottles per day during the sales campaign from October 2026 to March 2027, reflecting consumer interest in health-focused functional beverages.

Research Support

Yakult's investment in immune research has spanned numerous studies that illustrate the role of the Shirota strain in supporting immune health. In a clinical trial involving healthy adults, participants showed significant activation of dendritic cells after consuming beverages containing the Shirota strain, indicating its positive effects on the immune system.

Another study examined the effects of galacto-oligosaccharides on constipation. Findings revealed that women consuming beverages enriched with this ingredient experienced notably increased bowel movements compared to those on a placebo, further underscoring the functional benefits of Yakult 400W Immunity & Bowel Health.

As consumers increasingly seek out products that contribute to their overall well-being, the revitalized Yakult 400W presents a compelling option for those aiming to maintain health in a proactive manner. With firm scientific backing and a commitment to quality, Yakult continues to lead in the functional food market, advocating for lasting health benefits through innovative product development.