Bifidobacterium animalis subsp. lactis is a beneficial bacterium, often recognized as a probiotic. It resides naturally within the human gastrointestinal tract, contributing to the gut microbiome. Probiotics are live microorganisms that, when administered in adequate amounts, confer a health benefit on the host. This well-researched strain produces lactic and acetic acid, which helps create a favorable environment in the gut. It supports overall gut health and balance.
Where It Is Found
This beneficial bacterium is naturally present in the human digestive system, particularly in infants. It lives within the mammalian colon. Due to its beneficial properties, it is widely used in commercial products.
It is frequently added to fermented dairy products like yogurt and kefir, and it can also be found in probiotic supplements. Specific strains, such as BB-12 and HN019, are incorporated into these products due to their stability and functionality. Its ability to survive the acidic conditions of the stomach and bile in the intestines makes it a suitable addition to these food items and supplements.
How It Supports Your Body
Bifidobacterium animalis subsp. lactis maintains a balanced gut microbiome, essential for healthy digestion. It helps in the breakdown of food and the absorption of nutrients. It can also alleviate common digestive discomforts, such as bloating and irregular bowel movements, by influencing gut motility and reducing intestinal transit time. For instance, specific strains have shown effectiveness in relieving constipation and symptoms associated with irritable bowel syndrome (IBS).
It also modulates the immune system, as a healthy gut contributes to overall immunity. It interacts with host immune cells to regulate immune responses, enhancing the body’s natural defenses against pathogens. Studies suggest that it can increase the body’s resistance to common respiratory infections. Its presence in the gut helps foster a balanced immune environment.
A healthy gut environment also optimizes the absorption of certain nutrients. It contributes to the production of short-chain fatty acids (SCFAs), such as acetate, which are important for gut health and can indirectly support nutrient uptake. These SCFAs also contribute to a lower intestinal pH, which can inhibit the growth of harmful bacteria. A well-functioning gut ensures that the body can efficiently utilize the nutrients from food.
It also helps strengthen the gut barrier function. The gut lining acts as a barrier, preventing undesirable substances from entering the bloodstream. It supports the integrity of this barrier by maintaining normal tight junction function and enhancing the mucosal barrier. A strong gut barrier is essential for overall health and helps protect against potential infections.
Important Considerations
It is generally considered safe for most healthy individuals. Clinical studies have shown no significant adverse events when consumed, even by children or adults taking antibiotics. This safety profile makes it a widely accepted ingredient in health products.
Some individuals may experience mild, temporary digestive adjustments when first introducing probiotics, such as gas or bloating. These effects are transient as the digestive system adapts. Any persistent or severe discomfort should prompt consultation with a healthcare professional.
When selecting probiotic products, look for reputable brands that clearly list the specific bacterial strains, such as BB-12 or HN019. Checking for “live and active cultures” and the number of Colony Forming Units (CFUs) at the “best by” date ensures product viability. While a general range of 2-10 billion CFUs is often protective, higher doses may be indicated for specific health goals.
Individuals with underlying health conditions, compromised immune systems, or those who are pregnant or breastfeeding should consult with a healthcare provider before starting any new supplement. This ensures the probiotic is appropriate for their specific health needs and avoids potential interactions or contraindications.