Several times a month or more, a friend thrusts their latest cholesterol results in front of me and asks for an explanation. “What do you think of these results?” “Are they okay?” “My doctor said the HDL is too low.” “Why are my triglycerides so high?” “What should the LDL be?” “Why is the total cholesterol number high if all the individual numbers are good?” This week I’m talking about what your cholesterol results mean, and how to make them better.
First, let’s discuss how the total cholesterol is computed. Simple. Add the LDL to the HDL, and then add one-fifth of the triglycerides. That’s your answer. So if the LDL is 100, HDL is 50, and triglycerides (TG) are 100, the total cholesterol number will be the sum of 100 (LDL) + 50 (HDL) + 100/5 (TG) = 100 + 50 + 20 = 170. Very good. Here’s a second example: If the LDL is 150, HDL is 50, and triglycerides are 500, the total cholesterol will be the sum of 150 (LDL) + 50 (HDL) + 500/5 (TG) = 150 + 50 + 100, or 300. Not good. You want your total cholesterol below 200 or so, unless the HDL is high, in which case the total may be higher than 200, but that’s good. High HDL levels are beneficial; they lower your risk of coronary artery disease. Continue reading →