Dr. Jack Wolfson / Cardiologist Natural Heart Doctor on Instagram: "Dr. Wolfson here. LDL is not the enemy. It is one of the hardest working particles in your body. LDL delivers cholesterol to cells so they can build strong cell membranes LDL is essential for hormone production including testosterone, estrogen, cortisol, and progesterone LDL supports brain health since the brain is mostly fat and cholesterol LDL helps with vitamin D production and transport LDL plays a role in immune defense by