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.
Squats are complex and the right way to squat depends on your body mechanics. The right way to squat might be different for different people. Checkout this amazing article: Squat Depth: The Final Answer | T Nation. Its extremely important to get the basics right.