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Related Concept Videos

Lipids: Dietary Sources and Requirements01:18

Lipids: Dietary Sources and Requirements

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Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
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Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
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Lipid Absorption01:24

Lipid Absorption

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Dietary triglycerides from chyme in the duodenum are mixed with bile salts produced by the liver to emulsify fats. As a result, large droplets are broken down into smaller ones, increasing the surface area for enzymatic action. Once emulsified, pancreatic lipases hydrolyze the triglycerides into free fatty acids and monoglycerides.
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Drug Absorption: Factors Affecting GI Absorption01:19

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The process of oral drug absorption can be influenced by several factors. Weakly acidic drugs tend to be absorbed more readily from the stomach due to their nonionized state. However, absorption may be less efficient in the upper intestine, where drugs are often ionized. Interestingly, despite the stomach's apparent advantage for drug absorption, its mucous layer can hinder diffusion. Its surface area is also smaller than the intestine's, which can further slow down the absorption rate.
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Oral Hypoglycemic Agents: α-Glucosidase Inhibitors01:19

Oral Hypoglycemic Agents: α-Glucosidase Inhibitors

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α-glucosidase inhibitors, including acarbose (Precose), miglitol (Glyset), and voglibose (Voglib) (primarily available in Asia), are drugs that control blood sugar levels by delaying the digestion of starch and disaccharides. They achieve this by inhibiting α-glucosidase enzymes in the intestine, which slow the absorption of carbohydrates in the intestine, which in turn leads to a prolonged release of the glucoregulatory hormone GLP-1 from intestinal L-cells.
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Related Experiment Video

Updated: Feb 26, 2026

Enrichment of Mammalian Tissues and Xenopus Oocytes with Cholesterol
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Food Ingredients That Inhibit Cholesterol Absorption.

Elliot D Jesch1, Timothy P Carr2

  • 1Department of Food, Nutrition and Packaging Sciences, Clemson University, Clemson, SC 29634, USA.

Preventive Nutrition and Food Science
|July 14, 2017
PubMed
Summary
This summary is machine-generated.

Learn about natural food components that inhibit cholesterol absorption. Identifying these compounds can help develop dietary supplements and ingredients to manage cholesterol levels non-pharmacologically.

Keywords:
cholesterol absorptiondietary supplementfunctional foodnutraceutical

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Area of Science:

  • Nutritional Science
  • Biochemistry
  • Cardiovascular Health

Background:

  • Cholesterol is essential for cell membranes and hormone synthesis.
  • High cholesterol (hypercholesterolemia) contributes to atherosclerosis, heart attacks, and strokes.
  • Cholesterol absorption in the small intestine significantly impacts blood cholesterol levels.

Purpose of the Study:

  • Investigate natural food components that inhibit cholesterol absorption.
  • Identify non-pharmacological strategies for managing plasma cholesterol.
  • Inform the development of functional foods and dietary supplements.

Main Methods:

  • Review of existing human and animal studies on cholesterol absorption.
  • Analysis of dietary factors influencing cholesterol absorption efficiency.
  • Identification of natural food components with cholesterol-lowering properties.

Main Results:

  • Cholesterol absorption is a regulated process influenced by dietary compounds.
  • Several food components, including phytosterols, soluble fibers, phospholipids, and stearic acid, inhibit cholesterol absorption.
  • Understanding these inhibitors can aid in developing dietary strategies.

Conclusions:

  • Natural food components offer a promising avenue for managing hypercholesterolemia.
  • Further research into these inhibitors can lead to novel dietary interventions.
  • Targeting cholesterol absorption is a key strategy for cardiovascular health.