Just like any animal products, egg yolk fat can increase your cholesterol and triglyceride level. Egg yolk (the yellow part of the egg) is quite heavy in fat so try as often as possible to separate the egg yolk from the white area and don't eat it.
Here are some food that you need to avoid eating (or at least eat them rarely) to avoid getting a high triglyceride level. Most of the food you need to avoid are deep fried ones, but here are some that you normally eat without you being aware of it:
Triglyceride is in a nutshell, the amount of fat circulated in your blood. As you can imagine, if the amount of fat in the blood is high, there can be dangerous results coming out of it, such as: