Brewer’s yeast is a type of yeast that people use for brewing beer and making wine and bread. Some individuals may also use it as a nutritional supplement, as it contains B vitamins and chromium, which may help maintain blood sugar levels.

Many individuals use several terms to refer to brewer’s yeast, including baker’s yeast and Saccharomyces cerevisiae (S. cerevisiae). During breadmaking, oxygen helps S. cerevisiae convert flour into carbon dioxide, which then allows the dough to rise into a loaf of bread.

Some individuals may take brewer’s yeast supplements if they have type 2 diabetes or diarrhea.

This article explains what brewer’s yeast is in more detail, its benefits, side effects, and risks. It also discusses how to consume it.

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Brewer’s yeast is a type of yeast that individuals can take as supplements to treat diabetes, diarrhea, and colds. Among others, it contains:

According to health experts, individuals can take brewer’s yeast to help improve their energy levels and maintain their weight. It may also help control blood sugar levels and improve glucose tolerance.

Brewer’s yeast could be a suitable option for people looking to increase their intake of B vitamins, which includes:

Those who do not take enough B vitamins may have a high chance of developing anemia.

Learn more about chromium supplements.

Learn more about B vitamins.

Research has shown there may be some benefits to consuming brewer’s yeast.

For example, in a 2017 study, the researchers reviewed the effects of brewer’s yeast in people with irritable bowel syndrome. They found that it was more likely to relieve their symptoms than placebo treatments.

An older study also found that women who took brewer’s yeast supplements daily experienced fewer upper respiratory tract infections than those who received a placebo.

Authors of a 2018 study wrote that there was a reduction in symptoms of respiratory tract infections when taking brewer’s yeast supplements.

Furthermore, chromium supplements may be effective for those who have type 2 diabetes. According to a recent article, taking between 200 and 1,000 micrograms (mcg) per day may help reduce diastolic blood pressure.

A recent study suggests that S. cerevisiae may aid in milk production in animals. However, there is no evidence about its effects on breast milk production in humans.

Also, according to researchers, supplements containing chromium may help improve muscle mass, control weight, and provide relief for people with polycystic ovary syndrome.

Some health experts believe brewer’s yeast can cause gas or migraine.

However, others state that individuals who take chromium from food should not experience any effects. Despite this, taking high doses of supplements can lead to stomach problems. In rare cases, these may also harm the nerves, kidneys, and liver.

Doctors may not recommend it to those with gout or Crohn’s disease or who take medications to treat depression. This is because it can interact with monoamine oxidase inhibitors, such as selegiline, phenelzine, or isocarboxazid.

Brewer’s yeast supplements have some risks that a person needs to consider before buying any products.

The National Institutes of Health (NIH) states that chromium supplements may interact with insulin and lead to reduced blood sugar levels.

Additionally, these supplements may not be safe for people who take levothyroxine, a drug that physicians prescribe to treat hypothyroidism. This is because they can reduce the amount of medication that the body absorbs, lowering its effectiveness.

That said, the NIH recommends that people let their doctor know if they are taking any prescription or over-the-counter medications. This ensures they do not take any products that may interfere with their treatment.

Brewer’s yeast is available as powder, tablets, and capsules. Most of the time, doctors recommend taking 1–2 tablespoons of powder or flakes, equivalent to 15–30 grams.

The United Kingdom’s National Health Service (NHS) states that adults can eat foods that contain chromium, such as meat, fruits, vegetables, and nuts. However, those who opt for supplements can take around 25 mcg per day.

Additionally, individuals can buy brewer’s yeast from online suppliers. However, it may be best to check the amounts of vitamins, minerals, and protein it contains before purchasing.

A person may want to also look for products that are free from fillers, additives, or sweeteners.

Brewer’s yeast is a type of yeast that contains chromium and B vitamins, such as niacin, folic acid, and biotin.

There are supplements available online that may be beneficial for individuals who have diabetes, diarrhea, or respiratory tract infections.

However, the ingredient can interact with some medications, including those that treat hypothyroidism and depression.

With this in mind, people should consult their doctor before starting taking any supplements to ensure these supplements are safe for them.