Kashrut: Jewish Dietary Laws. Kashrut is the body of Jewish law dealing with what foods we can and cannot eat and how those foods must be prepared and eaten. Kashrut comes from the Hebrew root Kaf-Shin-Reish, meaning fit, proper or correct.
Squats obviously help to build your leg muscles (including your quadriceps, hamstrings, and calves), but they also create an anabolic environment, which promotes body-wide muscle building.
Bodybuilders lower the leg press a couple of inches before ramming it back, placing extreme stress on the knees and never getting the most out of the exercise. Squats tax all the muscles in the legs - quads, hams, glutes, even calves. They also strengthen the hips and lower back, which help prevent injury.