Is using yeast as an ingredient bad for dogs?

There is a growing demand for plant-based ingredients such as yeast. Why? Because it is packed with healthy nutrients like minerals, vitamins, and fiber which promotes healthy bones and organs. But what about the uses of this ingredient in pet foods? Is it safe? Can they also reap its benefits? Firstly, let us find out what is nutritional yeast.

What is Yeast?

Yeast is a very tiny, single-cell organism that is classified as a fungus. There are thousand-plus species of yeast. From these thousands of species, the most extensively researched one is the “Saccharomyces cerevisiae.” This one is commonly used in the food industry. It is the main ingredient that causes bread to rise and in wine fermentation as well.

Another important type of yeast is the nutritional yeast which is what our topic will be about. The main use of this ingredient is in food supplements, meal replacements, additives, and seasoning as well. Also, most vegetarians use this as a cheese substitute. Some properties of nutritional yeast as mentioned below.

  1. Nutritional yeast is high in protein because it has an adequate amount of amino acids which is a building block of protein.
  2. It also contains glutathione, which is an antioxidant that protects from free radical damage caused by certain diseases like heart diseases and cancer.
  3. It is also high in fiber and contains riboflavin, thiamine, and B12 which is considered a vitamin powerhouse.
Is yeast good or bad for dogs?

Yes, it is safe for dogs. Yeast as an ingredient is very beneficial for dogs if used in certain ways. Some of the main benefits of this ingredient are as follows.

1.    Added nutritional content

The main reason to add this ingredient to pet foods because of its vitamin D and high protein content. It is also used as to tackle vitamin D deficiencies. Usually in a case where it cannot be absorbed due to certain gastrointestinal problems.

2.    Improves the taste of pet food

This is a popular flavor enhancer in pet foods to make them more appetizing. Usually, when this is added to pet foods, more products are sold at a higher rate as compared to foods that do not contain this ingredient

3.    Aids in intestinal health

 Nutritional yeast helps reduces E. coli, which is a bacterium that affects intestinal health. Adding this ingredient to pet foods makes the food more gut-friendly and improves health overall.

Side effects

Well, everything does come with big or small side effects. Normally yeast is considered safe to consume. However, it must be purchased from top-notch ingredient suppliers. There are still some factors that pet food companies should be aware of.

·        Underlying health conditions

This should not be added to all products of pet food companies. Why? Because it can cause problems if a dog or cat has some condition such as gastrointestinal bleeding. In those cases, products without yeast added are preferred.

·        Gastro problems

For pet foods that target bigger cats and dogs, this ingredient will be used in larger quantities. Large quantities of this ingredient can cause problems such as upsetting the gastrointestinal tract.

·        Weight gain

Usually, pet products with yeast as an ingredient are high in calories. High calories in turn causes weight gain so it is recommended to use this product in limitations.

·        Toxicity

As mentioned earlier pet foods that contain yeast but not be taken in high doses because they can cause problems like body heating, flushing, and rapid breathing.


We must know that anything consumed in large quantities will cause side effects. Thus, if used carefully this is a completely safe ingredient for pet food. Another reminder to always buy such ingredients from the best manufacturers if you want to be the best pet food company in the market.

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