Probiotics are live, tiny microorganisms that can give health benefits when consumed in sufficient amounts. They are often referred to as “good bacteria” and are believed to promote a healthy balance of microorganisms in the gut.
How Do Humans Take In Probiotics?
There are several ways to introduce probiotic organisms into the body, including:
Food
Many fermented foods, such as yogurt, kefir, sauerkraut, and kimchi, contain probiotic organisms. Eating these foods regularly can help promote a healthy balance of microorganisms in the gut.
Supplements
Probiotic supplements are available in many different forms, such as capsules, tablets, powders, and liquids. These supplements often contain a combination of different probiotic organisms and can be taken orally.
Probiotic-enriched foods
Some foods, such as certain brands of cereal, juice, and snack bars, are fortified with probiotic organisms. These foods can be a convenient way to introduce probiotics into the diet.
While some probiotics occur naturally in the human gut, others must be ingested intentionally. Some traditional dairy foods contain important probiotics, which give them their tangy taste. There are many different probiotic organisms, but some of the most important ones include the below.
Lactobacillus
This is a genus of bacteria that includes many different species, such as L. acidophilus, L. plantarum, and L. rhamnosus. Lactobacillus is commonly found in the human gut and is often used as a probiotic to promote digestive health. It has also been shown to have antimicrobial properties and may help prevent infections.
Bifidobacterium
This is another genus of bacteria that is commonly found in the human gut. Bifidobacterium species, such as B. bifidum, B. lactis, and B. longum, are often used as probiotics to promote digestive health and may also have immune-boosting properties. Take this probiotic quiz to find out more about how digestive health can be impacted by live microorganisms.
Streptococcus Thermophilus
This is a species of bacteria that is commonly used in the production of yogurt and other fermented dairy products. It has been shown to have probiotic properties and may help improve lactose digestion.
Streptococcus thermophilus is used in the production of yogurt because it helps to ferment the lactose in milk into lactic acid, which gives yogurt its characteristic tangy flavor and thick texture. This practice originated in Central Asia and the Middle East, where people have been fermenting milk to make yogurt for thousands of years. The use of Streptococcus thermophilus in yogurt production was likely discovered through trial and error, as people observed which microorganisms produced the desired texture and flavor in their fermented milk products.
Saccharomyces Boulardii
This is a yeast species that is often used as a probiotic to promote digestive health. It has been shown to be effective in treating diarrhea caused by antibiotics and other infections. This enzyme is not naturally found in the human gut, but is contained in the yogurt drink kefir, which originated in the Middle East. Kefir consumption is increasing in the Western world – largely due to the health benefits that it offers. It also happens to taste extremely good.
Read Also
- Trust Signals Families and Referrals Expect in Home-Based CareChoosing a home-based care provider is rarely a simple decision. For families, it is often emotional and urgent. For referral sources, it is operational, clinical, and reputational. Both groups want the same outcome: a safe, dependable care setting that supports the individual’s needs without creating unnecessary risk, confusion, or disruption. Trust is the deciding factor.… Read more: Trust Signals Families and Referrals Expect in Home-Based Care
- IVF in Later Life: Opportunities, Risks, and Modern Strategies for SuccessIs it worth considering IVF after age 40? In today’s world, the boundaries of reproductive age are gradually shifting, adapting to social changes. More and more women aged 40 and older are making a conscious decision to become mothers once they have achieved career stability, established a solid financial foundation, and attained deep psychological maturity.… Read more: IVF in Later Life: Opportunities, Risks, and Modern Strategies for Success
- How to Choose a Pediatrician: What Parents Should Look For Before the First VisitChoosing a pediatrician is one of the first major healthcare decisions parents make — and one of the most important. Your child’s doctor will be a consistent presence through well-child visits, illnesses, developmental milestones, and sometimes difficult conversations. Getting this choice right from the start sets the foundation for your child’s long-term health. Start Looking… Read more: How to Choose a Pediatrician: What Parents Should Look For Before the First Visit
- Ankle Injuries in Athletes: When to Push Through and When to See a SpecialistAnkle injuries are among the most common in sports, from weekend warriors to competitive athletes. The challenge is that the ankle’s complexity means what feels like a simple sprain might actually involve a fracture, torn ligament, or cartilage damage beneath the joint. Knowing when to rest at home versus when to seek professional evaluation can… Read more: Ankle Injuries in Athletes: When to Push Through and When to See a Specialist
- What to Expect When Seeing an Orthopedic Surgeon for Knee or Joint PainKnee and joint pain affects millions of Americans each year, ranging from minor discomfort after exercise to debilitating conditions that limit daily movement. Knowing when to see a specialist — and what to expect when you do — can make the entire experience less intimidating and more productive. When Should You See an Orthopedic Surgeon?… Read more: What to Expect When Seeing an Orthopedic Surgeon for Knee or Joint Pain
- Real Health Risks of Mold Exposure in South Florida HomesAlthough I’m not a doctor, having lived through enough post-hurricane mold outbreaks to know which symptoms send people to the ER in Miami, Fort Lauderdale, and West Palm Beach—and which ones linger for years. Immediate Reactions (hours to days) Allergic-type response (most common): Runny nose, red itchy eyes, sneezing, sinus pressure that feels like a… Read more: Real Health Risks of Mold Exposure in South Florida Homes






