Are Probiotics Safe?

Click here to know about “Safety Assessment of Probiotics for Human Use”

What are synbiotics?

A synbiotic is a supplement that contains both a prebiotic and a probiotic that work together to improve the “friendly flora” of the human intestine. A majority of probiotics on the market today are considered “synbiotic.” The main reason for using a synbiotic is that a true probiotic, without its prebiotic food, does not survive well in the digestive system.

Aren’t bacteria harmful?

There are an estimated 100 to 300 trillion bacterial cells associated with the human body. Most are not harmful, and in fact contribute positively to normal human growth and development. It is believed that good gut bacteria make up about 70 to 80 percent of the body’s total immune system. However, some can have a negative influence and cause various diseases. It is therefore important that the balance of microbes be maintained to favor the beneficial bacteria over the potentially harmful ones. The ratio of beneficial to potentially harmful bacteria in the gut should be 80/20. When there is a bacterial imbalance, it is called dysbiosis. This imbalance can lead to a compromised immune system and digestive irregularities.

How can these bacteria help my kidneys?

By taking on some of the blood cleansing functions of the kidneys, these probiotic organisms ease the burden on ailing kidneys and prevent some of the serious side effects of toxic waste buildup in your bloodstream.

Can’t I get the probiotics I need by eating yogurt?

Many probiotic strains are found in yogurt, but in widely varying quantities due to the pasteurization process, which kills all natural organisms. Most manufacturers add the good bacteria back into their products after pasteurization, with varying effectiveness. Probiotic supplements are standardized, and in the case of Renadyl™, we guarantee 45 billion colony forming units of the three bacteria will be present in each serving up to the expiration date. That’s a very high level that is study proven to achieve the results you are seeking.

What are prebiotics?

Prebiotics are naturally occurring fiber materials which may be digested by probiotics to help them grow. Renadyl™ contains prebiotics, which is a Psyllium Husk (naturally occurring plant material).

How do probiotics work?

Probiotics are beneficial microorganisms, usually bacteria, which have beneficial effects on the human organism. We’re talking about three specific probiotic bacteria that our research shows are helpful in promoting healthy kidney function. These bacteria are: Streptococcus thermophilus, Lactobacillus acidophilus and Bifidobacterium longum.


Can you ship internationally?

Yes, we can ship internationally. Pricing depends on the country. Please contact or call 610-353-5130 for more information.


How can I keep my kidneys working as long as possible?

There are treatments, including medications and lifestyle changes, that may help keep your kidneys working longer. People can even get transplants before having dialysis, especially if they have a willing living donor. You need to ask your physician exactly what would help you.

How good will my life be with CKD?

In the early stages, CKD may have symptoms that are so subtle you do not notice them. In later stages, fatigue, itching, loss of appetite, and other symptoms can reduce your quality of life—if you take no action. How? All of these symptoms can be treated. Learn what to watch for and tell your doctor, so you can get the help you need.

You can also keep a good quality of life by following your treatment plan. For example, taking your medications in the right doses at the right times may help slow down your kidney disease. Your quality of life with CKD depends on your attitude, and how you accept the changes and take control of your health and your life.

How long can I live with chronic kidney disease?

Many people think that if their kidneys fail, they will die immediately. This used to be true 40 years ago when there were not enough dialysis machines to go around and medical knowledge about kidney disease was limited. It is no longer true today. How long you can live with CKD depends on your age, other health problems, and how involved you become in your care. Some people with early CKD never have kidney failure.

Others reach kidney failure and live for decades with dialysis or kidney transplants. There have been major advances in healthcare—we have better treatments, know more about how to slow down kidney failure, and have technically advanced dialysis machines. But the most important factor is still the individual who has the disease.

Research shows that patients who become partners in their care live longer. So, ask questions, and explore with your doctor and care team the best way for you to help manage your disease.

What is chronic kidney disease?

Chronic kidney disease is permanent kidney damage due to injury or disease. CKD ranges from mild to severe. If CKD reaches the point of kidney failure, dialysis or a kidney transplant is needed to support life. Since CKD may worsen over time, early diagnosis and treatment can help slow down the damage, depending on the cause of the problem.


What ingredients are in Renadyl™?

S. thermophilus (KB19), L. acidophilus (KB27), B. longum (KB31). Other ingredients include Xylo-oligosaccharide (prebiotic), Inulin (prebiotic), Magnesium Stearate.

When ordering Renadyl™ do I need to select a cold shipping option?

Renadyl™ is fully stable without refrigeration for at least 2 weeks and maintains effectiveness without the need for cold shipping. Upon receiving, please store Renadyl™ in your refrigerator between 39-45 (4-8) to maintain maximum effectiveness. Do not freeze.

Can the capsules be opened?

For maximum efficacy, the capsule should stay intact. Please call us at 610-653-5130 for any questions.

Can anyone take Renadyl™?

Renadyl™ is recommended for individuals with chronic kidney issues.

What does a 3-month supply of Renadyl™ consist of?

A 3-month supply of Renadyl™ is a three-pack bottle option, which is one bottle per month (2 capsules 2 times per day). It may take up to 3 months to start seeing results and we do offer a 90-day money back guarantee. For any dosing advice, please contact your physician. 

Is this medicine going to help me?

Renadyl™ is not a medicine or drug, it is a dietary supplement. It is not meant to cure any disease, however it may help alleviate symptoms and help maintain healthy kidney function and slow the progression of kidney impairment.

I read in your clinical study that Renadyl™ was only taken for 6 months. Is it safe to consume after 6 months?

Yes, Renadyl™ is safe to consume after 6 months (length of our study). Renadyl™ needs to be regularly taken like vitamins.

How many capsules come in one bottle of Renadyl™? 

Each bottle contains 60 acid resistant vegetarian capsules.

How is the product manufactured?

The product is manufactured adhering to Current Good Manufacturing Practices (cGMPs). cGMP regulations are enforced by the US Food and Drug Administration (FDA). cGMPs provide for systems that assure proper design, monitoring, and control of manufacturing processes and facilities.

Adherence to the cGMP regulations assures the identity, strength, quality, and purity of products by requiring that manufacturers adequately control manufacturing operations. Please consult your doctor/healthcare professional prior to taking this product or any other dietary supplement product on the market.

Is Renadyl™ FDA approved?

FDA regulates dietary supplements under a different set of regulations than those covering “conventional” foods and drug products (prescription and Over-the-Counter). Under the Dietary Supplement Health and Education Act of 1994 (DSHEA), the dietary supplement manufacturer is responsible for ensuring that a dietary supplement is safe before it is marketed. FDA is responsible for taking action against any unsafe dietary supplement product after it reaches the market.

Generally, manufacturers do not need to register their products with FDA nor get FDA approval before producing or selling dietary supplements.*Manufacturers must make sure that product label information is truthful and not misleading. The probiotic ingredient strains used in our proprietary, patented formulation are considered safe under Generally Recognized as Safe (GRAS) classification by the FDA.

Is the product toxic?

An animal formulation has been on the market for kidney compromised cats and dogs since 2006. No adverse effects in these animals have been observed. Recently completed results from human clinical trials have reaffirmed this safety.

Can I take antibiotics with this product?

You can take probiotics during antibiotic treatments. Probiotic supplements should be taken four hours after the antibiotics. Probiotic use should not interfere with the effectiveness of antibiotics.

What are some of the toxins metabolized by the product?

The microbes in question demonstrate a strong affinity for many of the nitrogeneous wastes which accumulate in the blood in the event of kidney failure: urea, uric acid, creatinine, indoles and phenols, nitrosamines and their precursors.

Are these genetically modified microbes?

No, they are natural microbes.

Why are the microbes in Renadyl™ more effective than other probiotics for ingesting uremic toxins?

Our clinical studies have shown that our 3 strains of probiotics have higher affinity for urea and uremic acids. These 3 strains are specially selected and will metabolize the nitrogenous waste in the body. They are also enteric coated which renders them unaffected by stomach acids, thus improving efficiency.

Can your product replace dialysis?

No, it cannot replace dialysis. Renadyl™ is not a drug, medicine or device. It helps to maintain healthy kidney function.

Are there any side effects?

The only side effects experienced by patients in our safety trials was minor bloating that disappeared in about a week while they continued taking the supplement.

I’m having a hard time reaching someone. How can I contact Kibow Biotech?

If you are having trouble reaching us, please call 610-353-5130 or email