A gyre is another name for a swirling vortex. Ocean gyres are large swirling bodies of water that are often on the scale of a whole ocean basin or 1000 s of kilometers across (hundreds to thousands of miles across).
Lean meats are meats with a relatively low fat content. Skinless chicken and turkey and red meat, such as pork chops, with the fat trimmed off are examples of lean meat.
*Based on a 2,000 calorie diet. Pork tenderloin is one of the healthiest cuts of pork. This lean meat provides just 122 calories and only three grams of fat per three-ounce serving. And you'll benefit from 22 grams of protein when you enjoy this cut of meat.