Who shouldn't take probiotics?

medicalnewstoday.com - Probiotics: Possible side effects and how to take them safely

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We do the research so you can find trusted products for your health and wellness. Our team thoroughly researches and evaluates the recommendations we make on our site. To establish that the product manufacturers addressed safety and efficacy standards, we: Medical News Today only shows you brands and products that we stand behind. We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission Here’s our process . In this article, we discuss what probiotics are, how they promote health, and how to take them safely. Probiotics are healthful strains of live bacteria and yeast. Taking probiotics can provide a range of benefits, but it can also cause side effects.

A range of probiotic supplements and yogurts are available to purchase online.

The most common probiotics that manufacturers add to commercial products are species of Bifidobacterium and Lactobacillus bacteria. Some yogurts, supplements, and fermented foods, including kefir, sauerkraut, and tempeh, contain probiotics. Studies suggest that consuming probiotics can provide more healthful bacteria, which may help restore the balance of the gut microbiota. Some bacteria benefit their human hosts, while other types cause harm. Disturbing the natural balance of bacteria in the gut can lead to digestive problems, infections, and other issues. Research indicates that this microbiota plays an important role in digestion and gut health, while supporting the immune system, for example. Trillions of bacteria and other microorganisms live in the gut. Scientists refer to this community of gut-dwelling organisms as the gut microbiota.

There is also evidence that probiotics may help with:

Many people use probiotics to help treat episodes of diarrhea and constipation . Research suggests that probiotics may help manage gastrointestinal conditions, including irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD). Though taking probiotics may provide various benefits, it can also cause side effects, including:

Digestive symptoms

When first using probiotics, some people experience gas, bloating, or diarrhea. Changes in the gut microbiota can result in bacteria producing more gas than usual, which can lead to bloating. However, these side effects usually clear up within a few days or weeks of taking the probiotics. If the symptoms persist, speak with a doctor, who can explore the possible causes. In some cases, the doctor may recommend switching to a different probiotic.

Skin problems

In rare cases, probiotics may cause skin rashes or itchiness.

Authors of a 2018 review found that two study participants who took probiotics to treat IBS reported an itchy rash as a side effect. This led one participant to drop out of the trial. If a rash or severe itching occurs, stop using the probiotic. Check the product’s labeling for any possible allergens, and see a doctor if the rash is severe, persistent, or it accompanies other concerning symptoms. Once the rash has cleared, a person can try a different product or strain of probiotic.

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Allergy risk

Anyone with an allergy or intolerance for gluten, soy, eggs, dairy, or lactose may need to exercise caution when choosing probiotics. As with any supplement, always check ingredients lists to ensure that there is no risk of an allergic reaction. Some manufacturers offer allergen-free probiotics. Anyone experiencing symptoms of an allergic reaction should stop using the probiotic immediately. Seek medical care if the reaction is severe.

Increased risk of infection

Although probiotics are generally safe to use, findings of a review from 2017 suggest that children and adults with severe illnesses or compromised immune systems should avoid using probiotics. Some people with these conditions have experienced bacterial or fungal infections as a result of probiotic use. If a person has a condition that affects their immune system, they should speak with their doctor before taking probiotics. Also, anyone using antifungal medication should wait until the infection has cleared up before taking probiotics.

Small intestine bacterial overgrowth (SIBO)

The small and large intestines usually contain different types of bacteria. SIBO occurs when bacteria from the large intestine start growing in the small intestine. The large intestine predominantly contains anaerobic bacteria, which do not require oxygen and live by fermenting indigestible carbohydrates from plant-based foods as they pass through the gut. Symptoms of SIBO are similar to those of IBS, including gas, bloating, and diarrhea. SIBO can also cause brain fogginess and short-term memory problems. Not everyone with IBS has SIBO, but the overgrowth is more common in people with IBS. SIBO also frequently develops in older females. Experts do not fully understand what causes the overgrowth, but it may result from reduced gut motility, which slows the passage of food through the gut. This can cause fermentable carbohydrates to remain in the small intestine for longer. Results of a 2018 study indicate a possible link between SIBO and probiotic supplementation in people with brain fogginess. The researchers found that symptoms improved when participants stopped taking probiotics and started taking antibiotics.

Anyone with SIBO symptoms should consult a doctor.

Antibiotic resistance

Rarely, probiotic bacteria can contain antibiotic-resistant genes. They can pass these genes on to other strains of bacteria, including the harmful strains that cause infections. However, manufacturers systematically test commercial probiotics stains for the presence of antibiotic resistance. To reduce the risk of consuming antibiotic-resistant bacteria, always source probiotics from trusted, reputable manufacturers.

medicalnewstoday.com - Probiotics: Possible side effects and how to take them safely

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