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8 Health Benefits of Probiotics

By Octavio Ochoa October 28, 2019 0 comments

Probiotics are live microorganisms that can be consumed through fermented foods or supplements (1Trusted Source).

More and more studies show that the balance or imbalance of bacteria in your digestive system is linked to overall health and disease.

Probiotics promote a healthy balance of gut bacteria and have been linked to a wide range of health benefits.

These include benefits for weight loss, digestive health, immune function and more (2Trusted Source, 3Trusted Source).

This is an overview of the key health benefits linked to probiotics.

1. Probiotics Help Balance The Friendly Bacteria in Your Digestive System

Probiotics include "good" bacteria. These are live microorganisms that can provide health benefits when consumed (1Trusted Source).

These benefits are thought to result from the ability of probiotics to restore the natural balance of gut bacteria (4Trusted Source).

An imbalance means there are too many bad bacteria and not enough good bacteria. It can happen due to illness, medication such as antibiotics, poor diet and more.

Consequences can include digestive issues, allergies, mental health problems, obesity and more (5Trusted Source).

Probiotics are usually found in fermented foods or taken as supplements. What's more, they appear to be safe for most people.

BOTTOM LINE:Probiotics are live microorganisms. When taken in sufficient amounts, they can help restore the natural balance of gut bacteria. As a result, health benefits may follow.

2. Probiotics Can Help Prevent and Treat Diarrhea

Probiotics are widely known for their ability to prevent diarrhea or reduce its severity.

Diarrhea is a common side effect of taking antibiotics. It occurs because antibiotics can negatively affect the balance of good and bad bacteria in the gut (6Trusted Source).

Several studies suggest probiotic use is associated with a reduced risk of antibiotic-associated diarrhea (7Trusted Source, 8Trusted Source, 9Trusted Source).

In one study, researchers found that taking probiotics reduced antibiotic-associated diarrhea by 42% (10Trusted Source).

Probiotics can also help with other forms of diarrhea not associated with antibiotics.

A large review of 35 studies found certain strains of probiotics can reduce the duration of infectious diarrhea by an average of 25 hours (11Trusted Source).

Probiotics reduced the risk of travelers' diarrhea by 8%. They also lowered the risk of diarrhea from other causes by 57% in children and 26% in adults (12Trusted Source).

Effectiveness varies, depending on the type and dose of the probiotic taken (13Trusted Source).

Strains such as Lactobacillus rhamnosus, Lactobacillus casei and the yeast Saccharomyces boulardii are most commonly associated with a reduced risk of diarrhea (9Trusted Source, 12Trusted Source).

BOTTOM LINE:Probiotics can reduce the risk and severity of diarrhea from a number of different causes.

3. Probiotic Supplements Improve Some Mental Health Conditions

An increasing number of studies link gut health to mood and mental health (14Trusted Source).

Both animal and human studies find that probiotic supplements can improve some mental health disorders (15Trusted Source).

A review of 15 human studies found supplementing with Bifidobacterium and Lactobacillus strains for 1–2 months can improve anxiety, depression, autism, obsessive-compulsive disorder (OCD) and memory (15Trusted Source).

One study followed 70 chemical workers for 6 weeks. Those who consumed 100 grams of probiotic yogurt per day or took a daily probiotic capsule experienced benefits for general health, depression, anxiety and stress (16Trusted Source).

Benefits were also seen in a study of 40 patients with depression.

Taking probiotic supplements for 8 weeks decreased depression levels and reduced levels of C-reactive protein (a marker of inflammation) and hormones such as insulin, compared to people who did not take a probiotic (17Trusted Source).

BOTTOM LINE:Research shows taking probiotics may help improve symptoms of mental health disorders such as depression, anxiety, stress and memory, among others.

4. Certain Probiotic Strains Can Help Keep Your Heart Healthy

Probiotics may help keep your heart healthy by lowering LDL ("bad") cholesterol and blood pressure.

Certain lactic acid-producing bacteria may reduce cholesterol by breaking down bile in the gut (18Trusted Source).

Bile, a naturally occurring fluid mostly made of cholesterol, helps digestion.

By breaking down bile, probiotics can prevent it from being reabsorbed in the gut, where it can enter the blood as cholesterol (19Trusted Source).

A review of 5 studies found that eating a probiotic yogurt for 2–8 weeks reduced total cholesterol by 4% and LDL cholesterol by 5% (20Trusted Source).

Another study conducted over 6 months found no changes in total or LDL cholesterol. However, the researchers did find a small increase in HDL ("good") cholesterol (21Trusted Source).

Consuming probiotics may also lower blood pressure. A review of 9 studies found that probiotic supplements reduce blood pressure, but only modestly (22Trusted Source).

In order to experience any benefits related to blood pressure, supplementation had to exceed 8 weeks and 10 million colony-forming units (CFUs) daily (22Trusted Source).

BOTTOM LINE:Probiotics may help protect the heart by reducing "bad" LDL cholesterol levels and modestly lowering blood pressure.

5. Probiotics May Reduce the Severity of Certain Allergies and Eczema

Certain probiotic strains may reduce the severity of eczema in children and infants.

One study found eczema symptoms improved for infants fed probiotic-supplemented milk, compared to infants fed milk without probiotics (23Trusted Source).

Another study followed children of women who took probiotics during pregnancy. Those children had an 83% lower risk of developing eczema in the first two years of life (24Trusted Source).

However, the link between probiotics and reduced eczema severity is still weak and more research needs to be done (25Trusted Source, 26Trusted Source).

Some probiotics may also reduce inflammatory responses in people with milk or dairy allergies. However, the evidence is weak and further studies are needed (27Trusted Source).

BOTTOM LINE:Probiotics may reduce the risk and severity of certain allergies, such as eczema in infants. However, more research is needed.

6. Probiotics Can Help Reduce Symptoms of Certain Digestive Disorders

Over one million people in the US suffer from inflammatory bowel disease, including ulcerative colitis and Crohn's disease (28Trusted Source).

Certain types of probiotics from the Bifidobacterium and Lactobacillus strains have improved symptoms in people with mild ulcerative colitis (29Trusted Source).

Surprisingly, one study found that supplementing with the probiotic E. coli Nissle was just as effective as drugs in maintaining remission in people with ulcerative colitis (30Trusted Source).

However, probiotics appear to have little effect on symptoms of Crohn's disease (31Trusted Source).

Nevertheless, probiotics may have benefits for other bowel disorders. Early research suggests they may help with symptoms of irritable bowel syndrome (IBS) (32Trusted Source).

They have also been shown to reduce the risk of severe necrotizing enterocolitis by 50%. This is a fatal bowel condition that occurs in premature infants (33Trusted Source).

BOTTOM LINE:Probiotics may help reduce the symptoms of bowel disorders like ulcerative colitis, IBS and necrotizing enterocolitis.

7. Probiotics May Help Boost Your Immune System

Probiotics may help give your immune system a boost and inhibit the growth of harmful gut bacteria (34Trusted Source).

Also, some probiotics have been shown to promote the production of natural antibodies in the body. They may also boost immune cells like the IgA-producing cells, T lymphocytes and natural killer cells (35Trusted Source, 36Trusted Source).

A large review found that taking probiotics reduced the likelihood and duration of respiratory infections. However, the quality of the evidence was low (37Trusted Source).

Another study including over 570 children found that taking Lactobacillus GG reduced the frequency and severity of respiratory infections by 17% (38Trusted Source).

The probiotic Lactobacillus crispatus has also been shown to reduce the risk of urinary tract infections (UTIs) in women by 50% (39Trusted Source).

BOTTOM LINE:Probiotics may help boost your immune system and protect against infections.

8. Probiotics May Help You Lose Weight and Belly Fat

Probiotics may help with weight loss through a number of different mechanisms (40Trusted Source).

For example, some probiotics prevent the absorption of dietary fat in the intestine.

The fat is then excreted through feces rather than stored in the body (41Trusted Source, 42Trusted Source).

Probiotics may also help you feel fuller for longer, burn more calories and store less fat. This is partly caused by increasing levels of certain hormones, such as GLP-1 (43Trusted Source, 44Trusted Source).

They may also help with weight loss directly. In one study, dieting women who took Lactobacillus rhamnosus for 3 months lost 50% more weight than women who didn't take a probiotic (45Trusted Source).

Another study of 210 people found that taking even low doses of Lactobacillus gasseri for 12 weeks resulted in an 8.5% reduction of belly fat (46Trusted Source).

However, it's important to be aware that not all probiotics aid in weight loss.

Surprisingly, some studies found certain probiotics, such as Lactobacillus acidophilus, can even lead to weight gain (47Trusted Source).

More studies are needed to clarify the link between probiotics and weight (48Trusted Source).

BOTTOM LINE:Certain probiotics may help you lose weight and belly fat. However, other strains have been linked to weight gain.

The Best Way to Benefit From Probiotics

You can get probiotics from a variety of foods or supplements.

If you want to buy a probiotic supplement, then you can buy the Pre & Pro15 we have in our store.

Live probiotic cultures are often found in fermented dairy products such as yogurts and milk drinks. Fermented foods like pickled vegetables, tempeh, miso, kefir, kimchi, sauerkraut and soy products may also contain some lactic acid bacteria.

You can also take probiotics as tablets, capsules and powders that contain the bacteria in dried form.

However, be aware that some probiotics can be destroyed by stomach acid before they even reach the gut — meaning that you get none of the intended benefits.

If you want to experience any of the health benefits discussed above, it's important that you consume adequate amounts.

Most of the studies showing benefits used dosages of 1 billion to 100 billion live organisms or colony-forming units (CFU) per day.


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