Nutritional Supplement

Nutritional supplements are concentrated products, including vitamins, minerals, amino acids, and other bioactive compounds, used to complement dietary intake and support physiological function. In immunology and infection research, their effects depend on nutrient availability: compounds such as vitamin C, vitamin D, zinc, and selenium contribute to epithelial barrier integrity, immune-cell signaling, antioxidant defenses, and antimicrobial responses, while deficiencies can impair host defense. Studying these supplements helps clarify how nutrition influences susceptibility to infection, inflammation, vaccine responses, and recovery. Evidence from controlled experiments and clinical studies also guides safe, targeted use in populations at risk of inadequate intake.

Nutritional Supplement - Related Videos

Research

JoVE Journal - Medicine

Analyzing Beneficial Effects of Nutritional Supplements on Intestinal Epithelial Barrier Functions During Experimental Colitis

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Cited by 18 •

2017

Current treatments of inflammatory bowel diseases (IBD) aim at alleviating disease symptoms but may cause severe side effects. Thus, alternative strategies are being investigated in animal colitis models. Here, we explain how the beneficial effects of diet supplements on clinical IBD signs are analyzed in such a colitis model.

Dietary Supplementation of Polyunsaturated Fatty Acids in Caenorhabditis elegans

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Cited by 59 •

2013

Caenorhabditis elegans is a useful model to explore the functions of polyunsaturated fatty acids in development and physiology. This protocol describes an efficient method of supplementing the C. elegans diet with polyunsaturated fatty acids.

Education

JoVE Core - Medical-Surgical Nursing

Parentral Nutrition: Centeral and Peripheral Parental Nutrition

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2025

Parenteral Nutrition (PN) delivers essential nutrients directly into the bloodstream, bypassing the digestive system. It is commonly used for individuals with severe digestive disorders or conditions that prevent normal nutrient absorption. PN can be administered through two primary routes: 1. Central Parenteral Nutrition (CPN): CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...

Microbial Nutrition

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2025

Organisms exhibit remarkable metabolic diversity, categorized based on how they acquire energy and carbon. These strategies enable survival in various ecological niches and are essential for maintaining energy flow and nutrient cycling within ecosystems.Energy and Carbon SourcesOrganisms are classified as phototrophs or chemotrophs based on energy acquisition. Phototrophs use light as their energy source, while chemotrophs rely on oxidizing chemical compounds. Further differentiation arises...

A Caenorhabditis elegans Nutritional-status Based Copper Aversion Assay

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Cited by 3 •

2017

Here, we present a Caenorhabditis elegans-specific assay designed to evaluate changes in copper aversion behavior and the ability to locate a common food source, as the organism progresses from a well-fed to starved nutritional state.

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