The popular Button mushroom is low in calories and a healthy alternative for feeding occasionally (instead of conventional doggie treat options). Mushrooms actually have lots of niacin, enzymes, protein and antioxidants. Dogs could benefit as well . This mysterious fungi food isn’t so scary after all!
For instance, Amanita mushrooms contain amanitin toxins . These cause severe GI symptoms, a false recovery period where the dog seems to feel better, and then liver failure, acute kidney injury, and death.
If your dog consumes a mushroom accidentally , consider it toxic until you’ve been able to prove otherwise. Some signs of toxic mushroom ingestion include: If you suspect your pet has eaten a potentially poisonous mushroom, immediate veterinary treatment is required.
Are Portabello mushrooms safe for dogs to eat?
According to Dr. Justine A. Lee, DVM, DACVECC, writing for the Pet Health Network, mushrooms sold in large and chain grocery stores are generally safe for dogs to eat.
What are button mushrooms good for?
Button mushrooms are very low in calories . They offer essential protein and amino acids, sufficient levels of mineral, vitamins, and fiber. Button mushrooms carry vitamin D in the form of ergocalciferol. Vitamin D is an essential fat-soluble vitamin required for bone growth and calcium metabolism.
Do white button mushrooms have vitamin D2?
White button mushrooms (Agaricus bisporus) are grown in the dark and therefore contain negligible concentrations of vitamin D 2. White button mushrooms were examined and found to contain 56.3 μg/100 g fresh weight of provitamin D 2, and 0.11 μg/100 g fresh weight of vitamin D 2.
Another question we ran across in our research was “Does sunlight increase vitamin D in mushrooms?”.
A nutritionally meaningful increase in vitamin D in retail mushrooms is attainable by exposure to sunlight prior to consumption. Urbain P, Jakobsen J. Dose-response effect of sunlight on vitamin D2 production in Agaricus bisporusmushrooms.
How much vitamin D is in a whole mushroom?
In the 1994 seminal paper published by Finnish researchers on mushrooms and vitamin D, white button mushrooms contained 0.21μg/100g , whereas the chanterelles had an astonishing 29.82μg/100g.  100g of mushrooms is similar to a cup of chopped mushrooms, or about three white button mushrooms.