The cells in brewer's yeast are not living. They can't be reactivated. Saccharomyces cerevisiae is also different from Saccharomyces boulardii , a type of yeast used as a probiotic. This article explains some of the health benefits of brewer's yeast.
It also describes some of the possible side effects, as well as the ways brewer's yeast could affect other medications you may be taking. There isn't much research to support the health benefits of taking brewer's yeast. Even so, alternative health experts claim the nutrients in brewer's yeast can help with:.
Here is some of what the current research says. There is not much proof that brewer's yeast can relieve diarrhea. Researchers once thought it might treat diarrhea caused by the bacterium Clostridium difficile also known as C. However, more recent research has found that only S. Brewer's yeast may help with irritable bowel syndrome IBS. IBS is a digestive disorder that often causes abdominal pain, gas, diarrhea, and constipation. A placebo is a treatment that contains no active ingredients.
It's important to note that this research review included only two trials and participants total. Some people use brewer's yeast to treat the common cold, flu, and other upper respiratory tract infections. It isn't clear how brewer's yeast fights these infections.
Some proponents claim brewer's yeast boosts the immune response in a way that helps the body "treat itself. Brewer's yeast contains a form of chromium called glucose tolerance factor GTC. GTC has been shown to improve the insulin response. Insulin is a hormone that helps your cells use sugars to create energy. GTC may make it easier for your body to absorb the insulin in your blood. This action may help people with insulin resistance , a condition that can lead to diabetes.
A study found that brewer's yeast had a small positive effect on blood sugar in people with type 2 diabetes. A study from Iran showed that taking 1, milligrams of brewer's yeast per day improved blood pressure in people with type 2 diabetes. Their systolic upper pressure dropped an average of 4. Their diastolic lower pressure fell 5. Brewer's yeast is generally considered safe for short-term use.
In some people, brewer's yeast may cause headaches, stomach upset, and gas. Brewer's yeast isn't right for everyone, though. Here are some factors to consider:. Brewer's yeast may raise risks for women with recurrent yeast infections. The chances are small. Still, you may want to avoid brewer's yeast if you have an active yeast infection. Brewer's yeast may interact with certain medications.
For example, it may interact with monoamine oxidase inhibitors MAOIs used to treat depression. These include:. MAOIs work by preventing the body from breaking down a substance in foods called tyramine. Brewer's yeast has large amounts of tyramine. Taking brewers yeast with an MAOI could lead to a spike in tyramine and cause a sudden rise in blood pressure, known as a hypertensive crisis. A hypertensive crisis may also occur if you take brewer's yeast with the narcotic Demerol meperidine used to treat moderate to severe pain.
Nutritional yeast comes from a species of yeast known as Saccharomyces cerevisiae. Manufacturers can grow nutritional yeast on a variety of sources, including blackstrap molasses, whey, and sugar beets. Nutritional yeast is similar to the yeast that people use in baking, but it undergoes a heating and drying process that renders it inactive. Nutritional yeast is dairy-free and usually gluten-free. As a result, it can be a useful supplement for people with food allergies or sensitivities, as well as those on restricted diets.
It is also low in fat and contains no sugar or soy. Nutritional yeast is an excellent source of vitamins , minerals, and high-quality protein. Typically, one-quarter of a cup of nutritional yeast contains :. It also contains vitamin B-3, potassium , calcium , and iron.
While some manufacturers fortify nutritional yeast with vitamin B, not all of them do, so it is best to check the label. Vitamin B may help boost energy, as a deficiency of this vitamin can lead to weakness and fatigue. Nutritional yeast can be particularly helpful for vegetarians and vegans if it has added vitamin B, as this vitamin mostly occurs in animal products.
Adults need about 2. Just one-quarter of a cup of nutritional yeast provides more than seven times this amount. Research has shown that S.
It may also be helpful in treating diarrhea. Some research suggests that nutritional yeast can combat brittle nails and hair loss. It may also help reduce acne and improve other common skin problems, particularly in adolescence.
It may be effective at supporting the nervous system and enhancing the immune system. The most common side effects are excess gas, bloating, and migraine-like headaches.
The average adult dosage is one to two tablespoons daily. It can be added to food or mixed with water, juice, or shakes. The powdered form can be taken alone or added to food or beverages. Use caution if you have a central venous catheter, or any of the following conditions:.
Make a list of any conditions you have and medications you take before visiting your healthcare provider. Some supplements can have powerful effects. Here is a list of 4 natural supplements that are just as effective as pharmaceutical drugs. Chromium, glucose intolerance and diabetes. J Amer Coll Nutr. Chromium in the prevention and control of diabetes. Diabetes Metab. Elevated intake of supplemental chromium improved glucose and insulin variables in individuals with type 2 diabetes.
Peptides from live yeast cell derivative stimulate wound healing. Arch Surg. Preparation of chromium enriched yeasts. Acta Alimentaria. Iran J Public Health. Nutrition Almanac. New York: McGraw-Hill; Li Y-C. Effects of brewer's yeast on glucose tolerance and serum lipids in Chinese adults.
Biol Trace Elem Res. Moyad MA. Urol Nurs. Chromium: friend or foe? Arch Fam Med.
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