High Cholesterol can be from external sources (food) and from internal source (genetically determined by and produced by our own bodies).
Some external sources are red meat, lobsters, and fatty meats including chicken skin. Most plant based foods has no cholesterol and has good fat which will help your body just as exercise will do.
Your choice of Olive and Vegetable oil on occasion is good but tell your Dr. to help you lower your cholesterol levels as there are medications which will do so. This is to avoid medical issues in the future.
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