Clean & ready. Now with more vitamin D. 100% daily allowance of vitamin D - essential for strong bones. We use a natural sun ripening process which provides a natural boost of vitamin D to help keep bones strong. Vitamin D-The essential element. Strong antioxidant. Helps boost insulin production. Stimulates the immune system. Essential to bone development and maintenance. Did you know that mushrooms react to sunlight about the same way as humans do? It's true! Mushrooms produce a totally natural form of one of life's most essential elements - vitamin D. They're good for your immune system, bone development, insulin product and offer a powerful antioxidant boost. That's why Monterey Mushrooms has partnered with the USDA to offer you a far safer, more nutritious and better tasting alternative to getting your vitamin D. Fat free; cholesterol free; low in sodium; low in calories. Product of USA.