Dietary Cholesterol: What is it and is it bad for you?
What is Cholesterol
HDL, LDL and VLDL, The Good the Bad and the downright dirty.
Most of the time when people refer to their cholesterol levels they are in fact referring to the lipoproteins in their blood, HDL, LDL and in some cases VLDL. These 3 mysterious abbreviations stand for High Density Lipoproteins, Low Density Lipoproteins and Very Low Density Lipoproteins.
Lipoprotein’s are little balls of cholesterol wrapped in protein. The reason the cholesterol is wrapped in protein is because our blood is a water based substance and cholesterol is a fat and as you know fats and water don’t mix, so our bodies coat the fats in proteins so that they can be transported around our bodies to wherever they can be best used. The adage of High, Low and Very Low, simply refers to how much fat relative to protein there is in these little transportation balls. So VLDL have more fat and less protein than LDL and LDL has more fat and less protein than HDL. 
LDL and VLDL
Dietary Cholesterol and the risks to heart disease.
Inflammation and heart disease
Incidentally the experiment that led to us first postulating that heat disease was caused by dietary cholesterol was an experiment that was done on rabbits in the early 1900s, by a young Russian scientist named Anitschkow. The problem of course was that Rabbits do not eat cholesterol as part of their normal diets and so their bodies very quickly hyper responded to it.  Humans however are very well adapted to eating cholesterol so the comparison was null and void but this did not stop decades of misunderstanding.
Better ways to lower Heart Disease
For example, losing extra weight may help reverse high cholesterol.
There are also many foods that can help lower cholesterol. These include avocados, legumes, nuts, fruits and vegetables .
Adding these foods to your diet can help lower cholesterol and reduce the risk of heart disease.
Being physically active is also important. Studies have shown that exercise has positive effects on cholesterol levels and heart health, particularly training with weights… but any and all exercise can help.  .
High blood cholesterol levels can be a risk factor for heart disease.
However, dietary cholesterol has little to no effect on blood cholesterol in most people and in fact could
cause you to eliminate foods from your diet that may well help lower you risks of heart disease.
More importantly, there is no know significant link between the cholesterol you eat and your risk of heart disease.