What are the different causes of high cholesterol in vegans?

Genetics: As long as no animal products (chicken, fish, cow, pig etc) enter into the vegan's body, the only source of cholesterol is that already contained in the body, and that which is being manufactured on a daily basis by the body. So, unless you have a genetic condition that causes cholesterol to be very high, there should be absolutely no problem at all with your cholesterol. I am a happy vegan!

Genes: Our livers make about 75% of our cholesterol, with the rest coming in through our diets. I would guess most vegans take in even less fat in their diets than others and therefor a higher proportion comes from their livers. How much cholesterol is made by your liver is largely determined by your genes. This is why some people can't lower their cholesterol enough by diet alone.

Same as anyone: It's largely hereditary, there's a component of lack of exercise, and there are plenty of vegan foods that are loaded with the saturated fats that some folks say raise cholesterol. Despite all the rhetoric, the biggest studies have shown no advantage of vegetarians over other folks in longevity or any disease category when you control for the fact that they tend to have other healthy habits.

High-carb foods: Most vegans heavily rely upon grains, lentils, fruits for getting calories. These foods are very high in carbohydrates and cause elevated bad cholesteorl (triglycerides) and low good cholesterol (HDL). Most people can bring their cholesterol by simply making healthy food choices. Read: https://kaushikmd.com/2016/12/02/eat-fat-to-stay-healthy/ https://kaushikmd.com/2016/11/03/get-started/