A close-up image of a microscope in a laboratory, emphasizing the importance of scientific research in developing the best probiotic supplements
A microscopic view of green probiotic cultures, highlighting that Omni-Biotic is dedicated to gut health
Close-up of a powdered probiotic supplement, highlighting the importance of an effective delivery mechanism that ensures high probiotic survival into the intestines

Our Story

Our family is originally from Germany, where gut health traditions are deeply rooted in the culture. After trying many different probiotic brands to little effect, our family turned to Omni-Biotic, then available only in Europe. We soon felt the profound difference these products make, and knew we had to help others experience the Omni-Biotic difference for themselves here in the U.S.

In 2019, we launched AllergoSan USA to introduce the first Omni-Biotic products in the United States. Today, thousands of healthcare practitioners worldwide trust Omni-Biotic to address their patients’ gut health concerns, and millions use our probiotics daily. We're proud to make these innovative products available to more wellness seekers than ever before.

Our Team

The dedicated AllergoSan USA team is family-led and based in New York. The Kleinfelds, with their diverse industry backgrounds and fields of expertise, are united by a shared passion for the transformative power of gut health. 

Klaus Kleinfeld CEO
Klaus Kleinfeld CEO
Klaus has run several Fortune 500 companies, and is currently pursuing a variety of projects that he deeply believes in. After experiencing the profound health benefits of Omni-Biotic, he met with founder Anita Frauwallner, who inspired him to learn more about targeted probiotic supplements. This journey culminated in founding AllergoSan USA with his daughters.
Hannah Kleinfeld COO
Hannah Kleinfeld COO
Hannah received her undergraduate degree from Yale and her master’s from Harvard Business School. She has worked at McKinsey & Co with a focus on healthcare, and in the strategy & operations team at Boston Medical Center. Hannah first used Omni-Biotic to restore her gut health after a severe case of Lyme disease.
Lena Kleinfeld CMO
Lena Kleinfeld CMO
Lena spearheads Communications and Marketing at AllergoSan USA. She holds a degree in Media, Culture, and Communications from NYU and worked for several years in Corporate Communications at Lionsgate. Lena has also experienced the power of Omni-Biotic firsthand, using a combination of these products to manage her chronic eczema. 

Institut AllergoSan’s team of scientists has studied the connections between the gut and other systems of the human body, developing supplements that empower holistic health and wellbeing.

When her first husband passed away from colon cancer at a young age, Austrian pharmacist Anita Frauwallner became a passionate investigator of the gut microbiome and an advocate for probiotics as an accessible and effective health tool. She went on to found Institut AllergoSan in 1991, setting in motion a pioneering force in modern probiotic science.

30 years after its founding, Institut Allergosan is still based in Austria but has attained global renown, with an ever expanding body of microbiome research and Omni-Biotic products retailing in countries all over the world.

OMNi-BiOTiC Stress Release probiotic supplement packet on a wooden board

Our Quality Promise

When you buy Omni-Biotic products, you can trust that you’re getting potent, clean formulations. Each supplement we sell is validated by product-specific clinical studies, and every probiotic we use is precisely identified down to the sub-strain, while other companies use inexpensive, generic strains. Our probiotics are also natural to the human gut and free of common allergens.

Omni-Biotic products adhere to the most stringent quality and manufacturing guidelines, including:

World Health Organization (WHO) good manufacturing practices

U.S. Food and Drug Administration (FDA) DSHEA guidance

NSF International good manufacturing practices

International Standards Organization (ISO) quality management criteria

International Probiotics Association manufacturing guidelines

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Our Advisory

We collaborate with leading US healthcare professionals, academic institutions, and industry organizations to provide evidence based insights and premium educational experiences.

Omni-Biotic's clinical advisory member -  Andrea Girman - MD, MPH
Andrea Girman, MD, MPH
Dr. Andrea Girman is a graduate of the Johns Hopkins University School of Medicine and the Bloomberg School of Public Health. Dr. Girman writes and speaks nationally about functional and preventative medicine, health optimization at all stages of life, and the healing power of food.
Omni-Biotic's clinical advisory member - David Scheiderer - MD, MBA, DFAPA
David Scheiderer, MD, MBA, DFAPA
Dr. David Scheiderer attended medical school at Ohio State University, completed his Behavioral Medicine and Psychiatry residency at University of Virginia, and is certified by the American Board of Psychiatry and Neurology. Dr. Scheiderer specializes in Psycho-Neuro-Immunology (PNI).
Omni-Biotic's clinical advisory member - Gerald Simons - PA-C
Gerald Simons, PA-C
Gerald Simons graduated from Stony Brook’s Health Science Center. He then went on to graduate from Cornell Medical College’s Physician Assistant Program, where he is now a lecturer. Jerry currently practices at The Morrison Center and East Hampton Urgent Care in New York.
Omni-Biotic's clinical advisory member - Leah Linder - ND
Leah Linder, ND
An alumnus of Bastyr University, Dr. Leah Linder is a licensed naturopathic physician, writer, speaker, and educator. She specializes in the gut microbiome, naturopathic gynecology and fertility, cognitive performance, and body ecology optimization.
Omni-Biotic's clinical advisory member - Michelle Maddux - ND
Michelle Maddux, ND
Dr. Michelle Maddux received her doctorate of naturopathic medicine from Southwest College of Naturopathic Medicine (SCNM). She has completed additional training in integrative and functional medicine, laboratory medicine, eating disorders, meditation, yoga, and mindfulness.
Omni-Biotic's clinical advisory member - Dr. Nicole Cain - ND MA
Dr. Nicole Cain, ND MA
Dr. Nicole Cain has a doctorate in Naturopathic Medicine as well as a Master’s Degree in Clinical Psychology. She has been quoted as an expert in Forbes, and has published articles for Salon Magazine, Well + Good, The Institute for Natural Medicine, and Thrive Global.
Omni-Biotic's clinical advisory member - Sammie Mancine - RN, BCHHP
Sammie Mancine, RN, BCHHP
Sammie Mancine is a board-certified Holistic Health Practitioner, and Registered Nurse. She designs personalized programs to improve nutrition and other health factors like sleep and stress. Applying advanced training in SIBO and knowledge of the microbiome and gut-brain axis, she guides her clients to better health.
Smiling child holding a bag of oranges with the Feeding America logo overlay

We Are Proud to Support Feeding America

For every product purchased, we donate a portion to Feeding America, the largest hunger-relief organization in the U.S.

Your Purchase + Our Donation = 10 Meals for $1 Donated


How Do I Know If Taking Probiotics Is A Good Idea For Me And Which Product Is The Right Fit?

Most of the time, it’s a good idea to take probiotics to help maintain a healthy gut and the wellbeing of your entire body. The gut is the engine of your life; it provides fuel by digestion and influences many other vital processes within the body (i.e. the immune system, liver function and detox, and stress management). 

It’s difficult to keep the gut healthy with today’s oversupply of processed foods and harmful environmental, physical and psychological impacts. Probiotics ensure that good bacteria in the gut are replenished in order to strengthen the intestinal lining and maintain a strong digestive system.

OMNi-BiOTiC® probiotics are uniquely designed to support different critical processes within the body. Take a look at our Product Fit Chart on our homepage to find the probiotic that best supports your body’s needs

Do Omni-Biotic Products Have Regulatory Approval?

OMNi-BiOTiC®products are developed by Institut AllergoSan in accordance with quality criteria of the World Health Organization (WHO), the U.S. Food and Drug Administration (FDA), the World Gastroenterology Organization (WGO), and the Austrian/German Societies for Probiotic Medicine (OePROM / DePROM). All OMNi-BiOTiC®products have FDA GRAS (Generally Recognized As Safe) status and meet the quality criteria for medically relevant pro and synbiotics.

How Long Has Omni-Biotic Been On The Market For?

OMNi-BiOTiC®was developed by Institut AllergoSan in Graz, Austria. Institut AllergoSan was founded in 1991 and launched its first probiotic supplement in 1993. Over the last 25 years, Institut AllergoSan has become an internationally recognized center for research and formulation of natural products that support the wellbeing of the body by strengthening the gut. 

The OMNi-BiOTiC®product line is the #1 probiotic brand in Europe. Now, OMNi-BiOTiC®is also available in the U.S.

What Kind Of Testing Do You Do On Omni-Biotic Supplements?

Institut AllergoSan’s expert Research and Development team first performs lab tests on each strain of bacteria for how effective it is in achieving a specific health outcome (e.g. reducing the amount of a specific potentially harmful bacteria in your gut that could cause digestive upset). The team then tests the combination of strains of probiotic bacteria that is included in one OMNi-BiOTiC®product via clinical studies on people to make sure it works well together to achieve the desired outcome.

What Evidence-Based Studies Are Available For Omni-Biotic Products?

Institut AllergoSan in partnership with leading research institutions and universities continuously performs placebo controlled, double-blinded studies to test and demonstrate the clinical efficacy of OMNi-BiOTiC®multi-species probiotics. In 2009, the World Gastroenterology Organization (WGO) acclaimed a study about OMNi-BiOTiC®AB 10 (Koning 2007) as one of the 12 best studies in the world. For more information about studies on OMNi-BiOTiC®, please refer to our Clinical Studies/OMNi-BiOTiC® Studies website section.

Why Are Multispecies Probiotics Preferred To Monospecies Probiotics?

The human intestine contains more than 500 different bacterial strains. A mono-species probiotic preparation contains only one single bacterial strain, whereas the multi-species probiotic preparations of OMNi-BiOTiC® contain up to as many as eleven compatible, mutually reinforcing strains. Specific combinations of bacterial strains have been scientifically shown to be especially helpful when faced with particular health challenges.

What’s The Benefit Of Taking A Probiotic In Powder Form?

The freeze-dried powder form of OMNi-BiOTiC® products protect the bacteria during transport and ensure that they are alive and strong when you receive the product. By reactivating the bacteria in water, it is ensured that the probiotics can navigate past your stomach, which is too acidic for the bacteria, and reach your intestine, where they will be most effective. Taking a probiotic capsule eliminates the critical step of bacterial reactivation in water for optimal strength.

Are OMNi-BiOTiC® Products Suitable For Vegetarians And Vegans?

Yes. OMNi-BiOTiC® products are certified vegan, lactose, gluten and soy-free, as well as Non-GMO.

Is It Possible To Take OMNi-BiOTiC® Despite Dietary Intolerances (I.E. Histamine, Fructose)?

OMNi-BiOTiC®probiotics are vegan, lactose-free, gluten-free, soy-free and nut-free. The probiotic powder contains different dietary fibers that serve as food for the natural, good bacteria, such as fructo-oligosaccharides and inulin. This is the food for intestinal bacteria. They are present in OMNi-BiOTiC®products only in minimal amounts, much less than is used in the clinical breath test to provoke a measurable reaction. If you extend the activation time of OMNi-BiOTiC®to 30 minutes, the bacteria almost completely metabolize their food so that, at most, only a few molecules of these substances enter your body.

For allOMNi-BiOTiC®products, only strains of bacteria are used that cannot produce histamine themselves, soOMNi-BiOTiC®products can be safely taken by people with a histamine intolerance.

Can I Take OMNi-BiOTiC® With Other Supplements And/Or Medications?

Yes. OMNi-BiOTiC®products contain only strains of bacteria that naturally occur in the human intestine, and no chemical agents that can interact with other supplements or medications.

Does The Gut First Have To Get Used To The Supply Of Good Bacteria Through OMNi-BiOTiC®?

Depending on the health of your intestinal microbiome, this may be the case. If you are experiencing severe intestinal discomfort, it is recommended that you introduce and increase your daily dose slowly over a period of several weeks (beginning with the amount of a knife-tip) to prevent possible digestive side effects. Such situations are rare and only occur in about 5% of users.

Is It Possible To Take Two Different OMNi-BiOTiC® Products On The Same Day?

Yes. You can easily take one OMNi-BiOTiC®in the morning and a different one in the evening. Different OMNi-BiOTiC®products should not be dissolved in the same liquid at the same time because each bacterial combination is exactly matched and supplemented with their special food in the form of a matrix.

Why Are There Other Ingredients In The Probiotic Powder?

The freeze-dried powder of OMNi-BiOTiC® products contains different dietary fibers that serve as food for the natural, good bacteria. This is the food for intestinal bacteria. 

If you extend the activation time of OMNi-BiOTiC® to 30 minutes, the bacteria almost completely metabolize their food so that, at most, only a few molecules of these substances enter your body.

What Is The Recommended Intake Of OMNi-BiOTiC® Probiotics?

Stir one sachet of OMNi-BiOTiC® once or twice daily into approx. 4 oz. / 125 mL of room temperature water, wait for at least one minute (reactivation time), then stir again before drinking. OMNi-BiOTiC® intake is recommended on an empty stomach, if possible (e.g. before breakfast and/or before dinner or bedtime).

Do You Recommend Only Dissolving OMNi-BiOTiC® In Water?

OMNi-BiOTiC®probiotics are manufactured in the form of freeze-dried bacteria that need to be reactivated before intake. Due to its basic pH value, room temperaturewater creates the optimal environment to activate the bacteria and to energize them for their journey through your gastro-intestinal system.If you prefer, milk and milk alternatives, yogurt and yogurt alternatives, as well as tea are also well suited to rehydrate OMNi-BiOTiC®. Please note in general that the liquid in which you dissolve OMNi-BiOTiC®, should be under 100 degrees Fahrenheit, non-acidic.If the liquid is too cold, the bacteria cannot sufficiently “wake up” from their freeze-dried state. If the liquid is too hot, then they will die before you drink them. Juices and coffee are too acidic for the probiotic bacteria to survive.

Is It Harmful To Take Probiotics Since They Are Made Up Of Bacteria?

The human body is made up of at least equal the amount of bacteria as cells. There are many different kinds of bacteria. Some bacteria are harmful, like pathogens. The majority of bacteria in our body are responsible for keeping us alive (e.g. modulating the immune system, defending the body against pathogens). The World Health Organization (WHO) defines probiotics as “live micororganisms, which when administered in adequate amounts, confer a health benefit on the host.” Probiotics are the good bacteria that naturally occur in a healthy gut. These good bacteria colonize the lining of the digestive system and ensure that the gut flora can perform its role in vital functions in the body (e.g. food digestion and nutrient absorption, the immune system, liver function and detoxification, stress management).

Can OMNi-BiOTiC® Probiotics Be Used During Pregnancy And/Or When Trying To Conceive?

Yes, all OMNi-BiOTiC® probiotics are safe for use during pregnancy, post-partum, while breastfeeding and when trying to conceive. In fact, taking a high-quality probiotic supplement, like OMNi-BiOTiC®, during pregnancy and the first few months after birth will help support a healthy pregnancy and help lay the foundation for the newborn’s health.

Probiotics are the good bacteria that naturally occur in your gut. They are essential for good digestion, nutrient absorption, vaginal health, immune function, and even cognitive processes including mood.

To get the most benefits from OMNi-BiOTiC®, make sure to choose the probiotic that best fits your needs. For example, if you have a history of Urinary Tract Infections (UTIs) or Yeast Infections, we recommend OMNi-BiOTiC® BALANCE. OMNi-BiOTiC® BALANCE is also a good choice if you’re looking for overall gut support and a boost to your immune system. If you are experiencing high levels of stress and/or have Irritable Bowel Syndrome (IBS) or an inflammatory bowel conditions, we recommend taking OMNi-BiOTiC® STRESS Release. And if you recently had to take medications that negatively impact your gut flora, such as antibiotics, reach for OMNi-BiOTiC® AB 10.

You can also take our product fit quiz or contact us with any questions at info@omnibioticlife.com or 914-615-9914.

Can OMNi-BiOTiC® Probiotics Be Used Post-Partum And When Breastfeeding?

Yes! Taking a probiotic supplement in the post-partum period is highly beneficial. This is a very stressful time for the mother, which often takes a toll on the body and mind. 

The mother’s body is recovering from pregnancy and birth, and her hormones and immune system are re-adjusting. In addition, for many mothers, stress occurs due to the lack of sleep and constant worry about the newborn. In times of high stress, we recommend OMNi-BiOTiC® STRESS Release to support the body’s resilience and a healthy gut-brain-axis.

If you have a history of allergies, skin issues or frequent illness, then we recommend OMNi-BiOTiC® BALANCE to support your immune system during this time of transition.

Furthermore, a newborn baby starts developing their gut microbiome the day they are born. Over the course of the first 12 months, a baby forms the basis of their gut microbiome, which will stay with them for the rest of their life. The type of delivery, food, supplement and medication intake from the mother while breastfeeding all influence how the baby’s microbiome forms. The makeup of the microbiome in the first year after birth will influence a person’s health and wellbeing throughout their life. Therefore, taking a probiotic supplement will also greatly benefit the newborn baby in addition to the mother.

For example, research shows that children who consistently receive probiotics via breast milk, solid food, or supplements in the first few years after birth are less likely to develop seasonal and food allergies, intolerances, as well as chronic skin issues like eczema and atopic dermatitis.

Are OMNi-BiOTiC® Probiotics Safe For Children?

Yes, most OMNi-BiOTiC® probiotics are safe for children.For babies and up to one year of age: Omni-Biotic Panda was specifically developed for babies and young children to support the healthy development of the baby’s gut microbiome, digestive system, and immune function. It has also been shown in clinical studies to improve symptoms of infant colic and to reduce the risk of childhood allergies, such as eczema.For children between one and three years of age: If the child is benefiting from Omni-Biotic Panda, this is often a good choice to continue until three years of age. Other probiotic formulations (except Omni-Biotic HETOX) can be taken at half of one sachet per day (i.e., half of the daily recommended dose for adults).For children older than three years of age: Children above three years of age typically respond well to taking the regular daily recommended dose. To improve the taste of the probiotic, you can dissolve it in infant formula, milk or yogurt, a dairy alternative, lukewarm soups and apple juice. Avoid juices that are too acidic such as orange juice as these negatively impact the probiotic bacteria.

What Are Prebiotics And The Health Benefits Of Taking A Prebiotic Supplement?

The probiotic bacteria that live in our gut microbiome (the world of billions of bacteria in our intestines) are split up into two groups: aerobic and anaerobic bacteria. 

A large portion of these probiotic bacteria consist of anaerobic bacteria, which means that they do not live or grow when oxygen is present. Only a small percentage consists of the aerobic bacteria, which can survive in oxygen and can therefore be manufactured into dietary supplements. Due to their sensitivity to oxygen, the anaerobic bacteria cannot be taken in the form of probiotic supplements. 

Luckily, scientists have come up with a clever way to promote the growth of anaerobic probiotic bacteria, which are incredibly important for our health. This is via prebiotics! 

Prebiotics are specific dietary fibers that serve as the food for certain anaerobic probiotic bacteria. The gist is that, if you can’t supplement certain key, beneficial bacteria, you can make sure that you’re providing everything they need to thrive in your gut by taking a prebiotic supplement.

Just like people, every probiotic bacterium has a favorite food and eating this ensures optimal livelihood. For example, Bacteroidetes particularly like apple pectin, butyrate-forming faecalibacteria prefer fructo-oligosaccharides (FOS) and special milk sugars such as galacto-oligosaccharides (GOS), whereas Akkermansia muciniphila thrive on galacto-olgosaccharides (GOS).

Who Would Benefit From Taking A Prebiotic Supplement?

External factors, including taking medications such as antibiotics, high amounts of and prolonged periods of stress, as well as unhealthy eating habits can disrupt the healthy balance of our gut bacteria. This can give rise to gut issues such as gas, bloating, and changes to bowel movements, as well as to longer-term health challenges such as chronic inflammation, leaky gut, eczema and migraines. 

If there is an unhealthy imbalance of bacteria in the gut, a prebiotic supplement can support the growth of anaerobic bacteria in order to restore healthy bacterial balance and diversity. 

Taking a prebiotic supplement is also an effective way to add more fiber to your diet, which supports a healthy gut microbiome and helps to promote regular bowel movements.

Do Omni-Logic Products Have Regulatory Approval?

All Omni-Logic products meet “Generally Recognized As Safe” (GRAS) criteria specified by the U.S. Food and Drug Administration (FDA).

What Kind Of Testing Do You Do On Omni-Logic?

Omni-Logic prebiotics are developed by Institut AllergoSan “Competence Center for Microbiome Research,” based on over 25 years of gut microbiome research and 100+ clinical studies using our products.

All Omni-Logic products include only ingredients that are known to be safe and effective. Furthermore, all ingredients are regularly tested for purity.

What Is The Recommended Intake Of Omni-Logic?

Omni-Logic PLUS: Stir 5 g (5 g = 1 coated measuring spoon) into approx. 6 oz / 200 mL of water / juice and drink at once as this product will gelatinize. The positive effect of glucomannan occurs with a daily intake of 3 g in 3 portions of 1 g in combination with 1-2 glasses of water before meals.

Our tip: We advise to start with 1 or ½ a measuring spoon once per day for three days. Then, gradually increase the daily amount up to the recommended daily dose (1 measuring spoon 3 times per day) over a period of approximately one week.

Take the product with plenty of liquid to ensure safe and easy ingestion, especially for consumers with difficulty swallowing. 

Omni-Logic IMMUNE: Stir 5 g (5 g = 1 coated measuring spoon) into approx. 6 oz / 200 mL of water / juice once daily (no activation time required). Our tip: Start with ½ measuring spoon once a day for 3 days. Then increase to the full daily recommended amount of 1 measuring spoon per day. This allows your good bacteria to multiply appropriately.

How Long Should Omni-Logic Be Taken For?

This depends on your health status and goals. However, it is best to take Omni-Logic for at least three months. There are powerful health benefits of adding a premium prebiotic to your daily wellness routine.

When Should Someone Feel The Benefits Of Omni-Logic?

You likely will feel a positive effect on your digestion in the first few days of taking Omni-Logic. The additional benefits on your overall health and wellbeing should become apparent in the first few weeks.

Can I Take Omni-Logic With Other Supplements And/Or Medications?

Yes, Omni-Logiccan be taken with other supplements and/or medications.

Are Omni-Logic Products Suitable For Vegetarians And Vegans?

Omni-Logic IMMUNE is certified vegan, gluten, lactose and soy-free, and made up of Non-GMO ingredients. Omni-Logic PLUS contains a small amount of lactose, which makes it suitable for vegetarians.

Is It Possible To Take Omni-Logic Despite Dietary Intolerances (E.G. Histamine, Fructose)?

AllOmni-Logicproducts are free of gluten, soy, corn, nuts and GMO ingredients. OnlyOmni-LogicPLUS contains a small amount of lactose (approx. 1.14 grams of lactose). 

Can Omni-Logic Be Used When Trying To Conceive, During Pregnancy, Postpartum And While Breastfeeding?

Yes, all Omni-Logic prebiotics are safe for use when trying to conceive, during pregnancy, postpartum and while breastfeeding. 

In fact, supporting gut health via prebiotics during pregnancy and the first few months after birth will help support a healthy pregnancy and lay the foundation for the infant’s health.

Are Omni-Logic Products Safe For Children?

All Omni-Logic products are safe for children over the age of six (6) years. It is recommended to give children a reduced dosage, starting with a knife tip per day in a large glass of water. For Omni-Logic PLUS, it is important to add sufficient liquid to ensure safe and easy ingestion, because the product can gelatinize.