Probiotics, your gut's best friend, are always by your side: Lactobacillus fermentation builds a strong defense for your health.

From flavored fermented milk drinks like breakfast cups and baby rice cereal to probiotic capsules for women, Lactobacillus fermentum is ubiquitous—this "gut health partner" protects people's daily health in various ways.

As a highly compatible probiotic, Lactobacillus easily colonizes the human digestive and urinary tracts and has a strong ability to adhere to mucosal membranes. It forms a "protective barrier," inhibiting the growth of harmful bacteria such as Staphylococcus aureus, regulating the gut microbiota, reducing mucosal inflammation, and improving diarrhea and indigestion caused by staying up late or irregular eating habits, thus acting as a "stabilizer" to maintain gut health.

Due to their superior properties, lactobacilli have wide applications in the food industry. For example, working synergistically with *Lactobacillus bulgaricus*, they can enhance the flavor and texture of fermented milk such as yogurt while maintaining their activity and stability. Added to infant formula, they can improve picky eating habits and seasonal gastrointestinal discomfort in children. Supplements containing specific strains can also maintain the balance of the female urogenital tract flora, thus becoming a popular health product.

In agriculture and animal husbandry, they also have important value: as a silage fermenting agent, they can inhibit mold growth and improve feed quality; added to aquaculture, they can regulate the aquatic microecology, reduce ammonia nitrogen levels, and promote the healthy growth of fish, shrimp, and green algae.

Experts remind consumers that the efficacy of fermented lactic acid bacteria is strain-specific, so it is essential to pay attention to the strain number and efficacy description when purchasing. Storage requirements should also be followed, such as not leaving refrigerated fermented milk at room temperature for extended periods to ensure its activity.

From diet to health, from humans to animals and plants, mild and highly effective fermented lactic acid bacteria have become an interdisciplinary "health guardian".