ok.. i just found this interesting info saying that if the triglycerides are low, and the LDL is high, most likely that the LDL contains more pattern A(less dense, not easily oxidised) sub-fractions than pattern-B( easily oxidised and more closely related to heart disease). since there are no URLs to those research he pointed out, i shall not take it as what he says are all true. look below
LDL cholesterol can be broken down into two kinds, pattern A and pattern B. LDL pattern A is large fluffy particles that are less dense than pattern B and not easily oxidized. LDL pattern A is essentially benign with respect to heart disease. LDL pattern B on the other hand is small dense particles that are easily oxidized and more closely associated with heart disease. It has been theorized that the harm to the arteries is associated with oxidized cholesterol. Ok, enough about that. To summarize, LDL pattern B (think small dense BBs) is bad, LDL pattern A (light and fluffy) is not a problem.
Now you would think that the lab actually measured your LDL, but they likely didn’t. Most labs just calculate LDL from the following equation:
LDL = Total Cholesterol - HDL - triglycerides/5
So from this, you don’t know if you are predominately LDL pattern A (no big deal) or predominately LDL pattern B (much more risk). Some labs do have the capability to measure the LDL gradient and can determine your predominate LDL pattern type. However, there is another way. Studies have shown that there is a strong correlation between a low triglyceride/high HDL level and LDL pattern A (the non risky kind), and conversely, a high triglyceride/low HDL level is strongly associated with LDL pattern B (the harmful kind). This is one reason that high triglycerides alone are an independent risk factor for heart diease.
Ok, where am I going with this with respect to your situation. Other studies have shown that a high triglyceride/HDL ratio is the best indicator for heart disease risk (approximately 8x better at predicting heart disease risk than high total cholesterol alone). A triglyeride/HDL ratio of 5.0 is moderate risk and the higher the number, the higher the risk, while a ratio of <2.0 is very low risk.
From what I have just described, you can see that with your very low triglyceride level (<100) and moderately high HDL level (>50) you are at very low risk of heart disease. Also, your very low triglyceride level indicates that your LDL is predominately pattern A, the harmless kind. If you are still concerned, you can have your LDL gradient measured to determine your LDL pattern type.
I wouldn’t even remotely consider cholesterol lowering medications without knowing your LDL pattern type to see if there is any risk associated with your lipid levels because there are potential significant side effects (muscle damage, neurological damage, liver damage, even death - i.e. the Baycol recall) associated with many cholesterol lowering medications (statins in particular).
Oh, and I think that your low sugar, lower carbohydrate diet is the way to go to lower your risk of heart disease because of the positive effects it has on triglycerides and HDL.
Alan
another one which i found
Low Density Lipoprotein Cholesterol (LDL) -- "Bad Cholesterol"
Although there is some controversy on this point, LDL cholesterol is considered "bad" in terms of heart disease risk. The relationship between low-carb diets and LDL cholesterol is more complex than with triglycerides and HDL cholesterol. There are some studies in which LDL is reduced on a low-carb diet, some in which it doesn't change, and some in which it goes up. But there is one thing about LDL changes which is consistent with low-carb diets, and that is that it causes a change in cholesterol particle size.
What has particle size got to do with it?
Evidence is accumulating that the size of cholesterol particles has a lot to do with risk for heart disease. Basically, the smaller the particles are, the greater the risk -- it is thought that perhaps the small particles lodge in the walls of blood vessels more easily.
The good news for those of us following a low-carb way of eating is that studies of diet and cholesterol particle size have consistently shown that low-carb diets produce larger-sized cholesterol particles. However, a larger-sized particle weighs more than a smaller one. When LDL does go up on a low-carb diet, it may be due to the larger particles, since weight is what's being measured. (A total cholesterol of 200, for example, means 200 mg per decaliter.)
On the other hand, high-carb diets seem to produce a greater percentage of smaller cholesterol particles in some people. So the total LDL goes down (particles are smaller, so the total is lighter.) While the reading may be low, it can be deceiving as risk goes up in those cases.
A good way to sort out risk? LDL particle size seems to be strongly correlated with triglyceride level (high triglycerides go with small particle size and vice versa). So if your triglycerides are low, your LDL particles are probably larger.
ps: now i'm in low carb diet
if my cholesterol levels score damn well la..
i should do one too hahaha
