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Related Concept Videos

Factors Influencing Bioavailability: First-Pass Elimination01:23

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When a drug is taken orally, it undergoes a journey starting from the gastrointestinal (GI) tract, passing through the portal vein, reaching the liver, and finally entering the systemic circulation. This process involves the absorption of the drug across the GI tract. The liver is the primary site for metabolizing the drug, with some metabolism also occurring in the gut wall. This journey significantly reduces the quantity of the drug that reaches the systemic circulation, a phenomenon known as...
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Bioavailability refers to the proportion of an unaltered drug that, after administration, enters the systemic circulation and can be distributed to the desired action site. Factors such as gastrointestinal (GI) absorption and liver biotransformation influence the bioavailability of a drug when it is administered orally. When a drug is administered intravenously, it enters the systemic circulation directly; by definition, its bioavailability is assumed to be 100%. The bioavailability of an...
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Drug interactions are a critical aspect of pharmacology and can occur when two or more drugs compete for the same binding site. This competition can result in one drug displacing another, altering the effect of the displaced drug. Drug interactions are complex processes that rely heavily on how much of the displacer drug is present and how strongly it can bind to the same sites as the displaced drug.
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Factors Affecting Drug Biotransformation: Biological01:19

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Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
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Updated: Jul 24, 2025

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Food matrix-flavonoid interactions and their effect on bioavailability.

Jingjing Zhang1,2, Hui Wang1, Chao Ai1

  • 1College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Guangdong Ocean University Zhanjiang, China.

Critical Reviews in Food Science and Nutrition
|July 10, 2023
PubMed
Summary

Flavonoids interact with food components and gut microbes, influencing their absorption and health benefits. Understanding these interactions is key to maximizing flavonoid bioavailability and nutritional impact.

Keywords:
Dietary flavonoidsbioaccessibilitybioavailabilityfood matrixgut microbiome

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Area of Science:

  • Nutritional Science
  • Food Chemistry
  • Microbiology

Background:

  • Flavonoids, plant-derived compounds, offer health benefits but require release from food matrices for absorption (bioaccessibility) and bloodstream transfer (bioavailability).
  • Existing research often studies isolated flavonoids, neglecting their complex dietary interactions and the crucial role of the gut microbiome in their metabolism.

Purpose of the Study:

  • To comprehensively review flavonoid interactions with food matrices (lipids, proteins, carbohydrates, minerals).
  • To examine the impact of these interactions on food's nutritional properties, flavonoid bioaccessibility, and bioavailability.
  • To discuss the health effects of flavonoid interactions with the gut microbiome.

Main Methods:

  • Literature review synthesizing studies on flavonoid-food matrix interactions.
  • Analysis of research on gut microbiome's role in flavonoid metabolism.
  • Integration of findings on how these interactions affect nutrient and flavonoid absorption.

Main Results:

  • Flavonoids bind to food nutrients via covalent and non-covalent bonds, affecting nutrient digestion and absorption.
  • Food components like lipids, proteins, and carbohydrates can positively influence flavonoid bioavailability.
  • Gut microbiome modulation shows potential for enhancing flavonoid bioavailability.

Conclusions:

  • Flavonoid interactions with food matrices and the gut microbiome are critical determinants of their health effects.
  • Further research into these complex interactions can optimize flavonoid utilization from dietary sources.
  • Understanding these relationships is essential for leveraging the full health potential of dietary flavonoids.