However, in 2005, it was reported that miners in Madagascar dug up a gem weighing 1,182 pounds which has also been feted as the world's largest emerald. Of less contention is the largest known pearl which was found by a Filipino diver off the island of Palawan in 1934.
USDA Beef Grades. Beef is graded for quality by U.S. Department of Agriculture (USDA) graders according to standards established by the USDA. Grades are based on the amount of marbling (flecks in fat within the lean) and the age of the animal.
1 Grass-fed beef may contain more than twice the amount of beta-carotene and lutein that is present in conventionally fed beef. 2  This relationship appears to hold true even if the cows have been fed silage during the winter months and pasture-feed only during the summer. However, grass-fed beef also typically contains small-to-moderate amounts of other omega-3s, including EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). 2  The range we've seen in recent studies is 20-720 milligrams for EPA, and 10-120 milligrams for DHA.