Vitamins in Mushrooms

Mushrooms are good sources of three hardworking B-complex vitamins--riboflavin, niacin and pantothenic acid. They are all found in every cell in our body, helping release energy from the fat, protein and carbohydrate in our food. In addition:

Riboflavin promotes healthy skin and good vision.

Niacin helps make sure the digestive and nervous systems function as they should.

Pantothenic acid is involved in the production of hormones and also plays an important role in the nervous system. Mushrooms are a particularly rich source of riboflavin. One portabella mushroom takes care of nearly one-third our daily value; a serving of white or crimini mushrooms supplies one-quarter of what we need daily. Vegetarians should also be aware that mushrooms are one of the best plant-based sources of niacin around.


Ostrom Mushroom Farms is Launching Vitamin D enhanced sliced Mushroms!

All 8 oz and 16 oz packaged sliced white and crimini mushrooms now contain 100% of the Daily Value of Vitamin D per 3 oz serving. That is 400 IU’s.!

Vitamin D and Mushrooms!

Mushrooms contain a plant sterol called ergosterol, which converts sunlight into vitamin D much the same as our human skin converts sunlight into vitamin D.

At Ostrom’s we expose mushrooms to a UV light for a matter of seconds to get a full 400 IU’s of vitamin D in a 3 oz serving. There is nothing added to the mushroom to help them absorb the light, it is all entirely natural.

Mushrooms are the only produce item that has vitamin D, making them the perfect whole food choice for people on restricted or alternative diets (vegans, lactose-intolerant or food allergies).



What type of vitamin D do mushrooms contain?
-D2 or Ergocalciferol.

Is it true that vitamin D is not a vitamin?
-Yes, vitamin D in technically not a vitamin.  It is a pre-hormone. Its’ metabolic product is the human hormone-calcitriol.  One thing it does is help our bodies absorb calcium.

Do mushrooms lose the vitamin D when cooked?
-No, mushrooms retain all their nutrients when cooked including their other vitamins and minerals.

Is there a difference between D2 and D3?
-There is no current scientific evidence that one type is better than the other at this time. Most supplements are D2 and fortified foods contain D3.

What is a serving size for Vitamin D enhanced mushrooms?
-3 oz per serving

Do other vitamins or minerals affect the absorption of D?
-No, however if you are taking other prescription drugs or supplements you may want to consult your doctor.

Can I get too much vitamin D toxicity from mushrooms?
-No, it is commonly held that the level of toxicity of vitamin D is 50,000 IU’s per day or, >150ng per milliliter. You would probably have to be using dietary supplements to achieve those levels.

How can I find out what my vitamin D levels are?
-a simple blood test called a 25(OH) D test. Ask your doctor!


Current research has implicated vitamin D deficiency as a major factor in the pathology of at least 17 varieties of cancer as well as heart disease, stroke, hypertension, autoimmune diseases, diabetes, depression, chronic pain, osteoarthritis, osteoporosis, muscle weakness, muscle wasting, birth defects, periodontal disease, and more.

Vitamin D's influence on key biological functions vital to one's health and well-being mandates that vitamin D no longer be ignored by the health care industry or by individuals striving to achieve and maintain a greater state of health.

White Mushrooms
WHITE Mushrooms
Good source of:
  • Riboflavin and Pantothenic Acid, which aid metabolism
  • Selenium, an antioxidant
  • Copper, an essential nutrient

Use white mushrooms sliced in salads, sautéed on burgers, pizza and pasta, added to egg dishes, quesadillas and stir-fries. A flavor that intensifies when cooked makes them perfect for slow cookers, soups and curries.