CDMA (Code Division Multiple Access) and GSM (Global System for Mobiles) are shorthand for the two major radio systems used in cell phones. Both acronyms tend to group together a bunch of technologies run by the same entities. In this story, I'll try to explain who uses which technology and what the real differences are.
Dairy. Dairy products provide nutrients that are critical for bone health, including calcium, potassium and vitamin D. Dairy is also a source of protein. The benefit dairy provides for bones makes consumption especially critical for growing children, whose bone mass is developing.
The dairy food group is mostly comprised of dairy products that are high in calcium. All types of yogurt, most cheeses and all liquid milk products are part of the dairy group, as are calcium-rich milk-based desserts such as ice cream and pudding.he five main food groups are a central component of the dietary recommendations set forth by the U.S. Department of Agriculture. Food group guidelines were introduced in 1916, more than a decade before the establishment of recommended dietary allowances, or RDA, for the daily intake of calories and essential nutrients.