Only produce item with vitamin D. Fresh. Local. Handpicked. Vitamin D. Low fat. Low carb. Vitamin D. Family owned since 1928. Mushrooms are a natural source of vitamin D, essential for absorption of calcium and phosphorus in the body. There is nothing synthetic or chemical added. When exposed to UV light, our sliced mushrooms provide 100% RDA of vitamin D in a 3 oz serving. Please recycle. Mix paper FSC. Product of USA.