The proportion of silver in these alloys is stated in terms of fineness, which means parts of silver per thousand of the alloy. Sterling silver contains 92.5 percent of silver and 7.5 percent of another metal, usually copper; i.e., it has a fineness of 925. Jewelry silver is an alloy containing 80 percent silver and 20 percent copper (800 fine). The yellow gold that is used in jewelry is composed of 53 percent gold, 25 percent silver, and 22 percent copper.
Kale, mustard greens, turnip greens, watercress, chard and spinach (as well as most other leafy greens) are all great vitamin C foods to add to your diet. While they all provide different amounts of this essential nutrient, they are all very healthy for you.
Our best food sources of vitamin C have a single thing in common: they are all plant foods. Even though manyâeven mostâanimals make vitamin C in their bodies, only plants make it to the degree that they provide a rich source of the nutrient when eaten.ranberries, blueberries, and watermelon are examples of very good sources, while apples, pears, and bananas are in the good category. You should expect almost any fresh fruit to be a good, very good, or excellentsource of dietary vitamin C. In addition, many vegetables contain vitamin C.