what foods do we get this nutrient from?
Red meat, egg yolks and whole eggs, liver, kidney, giblets, fish oil, and butter.
Cholesterol
. Major dietary sources of cholesterol include red meat, egg yolks and whole eggs, liver, kidney, giblets, fish oil, and butter. 
where does the pancreas secrete digestive enzymes into Duodenum. what are the different diseases that affect this organ? Pancreatitis, diabetes mellitus, and pancreatic cancer. what kind of stones tend to form in this organ? Gallstones. how are these formed? It is formed out of precipitated bile components. what are the symptoms for this condition? Pain, nausea, vomiting, fever and in some cases jaundice. what different types of stones are there in this? Cholesterol stones, mixed stones and pigment or bilirubin stones. what causes the first type of stone? UNANSWERABLE what is this first component mentioned above? It is a sterol , a type of lipid and is an essentiatl structural component of animal cell membranes. how do we test it in the human body? A blood sample after 12-hour fasting is taken by a doctor, or a home cholesterol-monitoring device is used to measure a lipid profile.
wiki:1640486
Cholesterol [SEP] Dietary sources
Animal fats are complex mixtures of triglycerides, with lesser amounts of both the phospholipids and cholesterol molecules from which all animal (and human) cell membranes are constructed. Since all animal cells manufacture cholesterol, all animal-based foods contain cholesterol in varying amounts. Major dietary sources of cholesterol include red meat, egg yolks and whole eggs, liver, kidney, giblets, fish oil, and butter. Human breast milk also contains significant quantities of cholesterol. Plant cells synthesize cholesterol as a precursor for other compounds, such as phytosterols and steroidal glycoalkaloids, with cholesterol remaining in plant foods only in minor amounts or absent. Some plant foods, such as avocado, flax seeds and peanuts, contain phytosterols, which compete with cholesterol for absorption in the intestines, reduce the absorption of both dietary and bile cholesterol.