USDA National Nutrient Database: An authoritative food composition database that compiles and disseminates composition data on foods and dietary supplements available in the United States. Mushroom nutrient composition is available, including vitamin D content.

NIH Vitamin D Dietary Supplement Fact Sheet: A health professional fact sheet developed by the National Institute of Health’s Office of Dietary Supplements. This comprehensive document on vitamin D includes information on food sources, intakes and status, vitamin D deficiency, groups at risk for inadequacy, and more.

Mushroom Varieties Chart: A guide to common mushroom varieties, their attributes and nutritional values.

Nature’s Hidden Treasure JADA Fact Sheet: A nutrition fact sheet reviewed by the American Dietetic Association that contains information about the health benefits of mushrooms as well as mushroom selection, storage and care, a recipe and cooking ideas.

Light in Color, Dense in Nutrients: A fact sheet that demonstrates how key nutrients in mushrooms compare with those in broccoli, carrots and tomatoes.

How Mushrooms’ Nutrients Stack Up: A quick guide to mushrooms basic nutrients including antioxidants, B vitamins, copper, phosphorus, potassium and vitamin D.