What is Yeast Intolerance?

Micki Elizabeth

Yeast intolerance is characterized by a body’s unhealthy reactions as a result of some level of inability to digest yeast. These reactions can vary depending on the severity of the yeast intolerance, and they may not become apparent right away. Symptoms of intolerance can include bloating and gas, painful indigestion or exhaustion. Heartburn, halitosis and dizziness could also result. Intolerance to yeast is different than a yeast allergy, in which the reactions are more immediate and threatening.

Many breads have a lot of yeast, which can make them unsuitable for people with yeast intolerance.
Many breads have a lot of yeast, which can make them unsuitable for people with yeast intolerance.

The condition often stems from the gastrointestinal system’s low production of the proper enzymes needed to break down yeast during digestion. A small portion of yeast is, in fact, necessary for normal bodily functions. Too much yeast, however, could slow the digestion process. The body does not usually react well to unprocessed food in the digestive tract.


A variety of negative reactions could occur as a result of too much yeast partnered with yeast intolerance. Many of these symptoms involve the digestive system itself. When unprocessed food sits in the stomach or intestines for too long, gas may be created. This could make an individual feel bloated with gas, which can be painful.

Problems in the digestive system often present themselves elsewhere in the body, too. Bad breath and skin problems can be a consequence of a yeast intolerance that is not treated. Food cravings, weight gain, and mood swings could also be some negative effects one might experience.

Those with an intolerance to yeast can take measures to limit their intake in order to possibly alleviate the negative effects. Eating fewer foods that include yeast may be an important step in fighting the symptoms of digestive intolerance. Breads and other similar foods such as crackers and cookies often contain high amounts of yeast. Many alcoholic beverages, especially beer, could also agitate the digestive system.

While some are born with a yeast intolerance, there are ways that this and other types of food intolerance may develop. Understanding what dietary choices set off the intolerance may be an important step when trying to avoid its negative effects. Some medications may cause an imbalance that results in intolerance, like antibiotics or birth control that contains progesterone.

It is also possible to develop an intolerance to yeast if one already has an intolerance to other types of food. When the digestive tract is thrown off-balance, its production of enzymes and its overall productivity rate could be affected, causing further complications. If an individual believes he has a food intolerance, consulting a physician or nutritionist could help to alleviate the problem over time.

Halitosis can be a symptom of a yeast intolerance.
Halitosis can be a symptom of a yeast intolerance.

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