A 100 gram dark chocolate can contain up to 65 % of daily values of zinc. (fitnessandpower.com)
The current percent daily value for zinc is 15 mg, but therapeutic doses may be needed in higher amounts. (thehealthyhomeeconomist.com)
A serving of butternut squash has thirty - five percent of the recommended daily value of vitamin C, an essential nutrient that has been shown to significantly reduce the risk of heart attacks. (organicauthority.com)