Wagyu is highly marbled. Marbling refers to the visible layers of intramuscular fat. This is the fat that is found in the muscle. Wagy contains a higher percentage of fatty acids than ordinary beef, this gives it a higher marbling score. The more tender, juicy and flavoursome the higher the marbling score will be.
All Kobe is Wagyu, but not all Wagyu is Kobe. Genuine Kobe beef comes from the the black Tajima breed of wagyu cattle in Hyogo Prefecture and raised according to strict protocol. Certified Kobe beef carries an appoval mark of designation that is stamped on four places on the carcass. There are roughly only 21 restaurants in the US that serve genuine Kobe beef.
Wagyu contains a higher percentage of omega-3, omega-6 fatty acid and more monounsaturated fats than other beef. These fats in moderation are both beneficial and essential to a healthy diet.