Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Absorption of Nutrients01:19

Absorption of Nutrients

7.1K
Absorption refers to taking dietary nutrients from the intestinal lumen for transportation throughout the body. After digestion in the small intestine, carbohydrates, proteins, and fats are broken down into simpler forms. These essential macronutrients and other vital substances, such as vitamins, minerals, and water, are then prepared for absorption into the bloodstream.
Enterocytes, which are specialized polar epithelial cells, line the mucosa of the small intestinal walls. These cells...
7.1K
Parentral Nutrition: Centeral and Peripheral Parental Nutrition01:27

Parentral Nutrition: Centeral and Peripheral Parental Nutrition

1.1K
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,...
1.1K
Dietary Connections01:23

Dietary Connections

62.6K
In biological systems, most metabolic pathways are interconnected. The cellular respiration processes that convert glucose to ATP—such as glycolysis, pyruvate oxidation, and the citric acid cycle—tie into those that break down other organic compounds. As a result, various foods—from apples to cheese to guacamole—end up as ATP. In addition to carbohydrates, food also contains proteins and lipids—such as cholesterol and fats. All of these organic compounds are used...
62.6K
Key Elements for Plant Nutrition02:35

Key Elements for Plant Nutrition

24.5K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.5K
Mineral, Vitamin and Water Absorption01:27

Mineral, Vitamin and Water Absorption

1.7K
Electrolytes are essential minerals and ions primarily obtained from the diet and absorbed through the gastrointestinal tract. Most electrolytes are absorbed in the small intestine. While the absorption of iron and calcium primarily occurs in the duodenum, calcium is also absorbed in the jejunum and ileum. In these regions, passive diffusion contributes to its absorption alongside active transport mechanisms in the duodenum. These ions can exit the enterocytes through specialized active...
1.7K
Regulation of Food Intake01:30

Regulation of Food Intake

3.0K
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
3.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Inconvenient for the investigator but convenient for science: trial registration in The American Journal of Clinical Nutrition.

The American journal of clinical nutrition·2026
Same author

The overlooked impact of background diet and adherence in nutrition trials.

Food & function·2025
Same author

The overlooked impact of background diet and adherence in nutrition trials.

medRxiv : the preprint server for health sciences·2025
Same author

An analysis of the recent US dietary guidelines process in light of its federal mandate and a National Academies report.

PNAS nexus·2023
Same author

Measurement rigor is not a substitute for design rigor in causal inference: increased physical activity does cause (modest) weight loss.

International journal of obesity (2005)·2022
Same author

Dietary Saturated Fats and Health: Are the U.S. Guidelines Evidence-Based?

Nutrients·2021
Same journal

Mechanisms of NAD+ Homeostasis in Aging and Disease.

Annual review of nutrition·2026
Same journal

Metabolite Damage and Repair in Health and Disease.

Annual review of nutrition·2026
Same journal

From Food to Function: Cross-Kingdom Transfer and Regulatory Potential of Dietary microRNAs Highlighted by Breast Milk.

Annual review of nutrition·2026
Same journal

The Influence of Diet on Cancer Progression and Treatment.

Annual review of nutrition·2026
Same journal

The Potential Physiologic Mechanisms by Which Early-Life Nutrition May Influence Type 2 Diabetes Pathophysiology in Humans.

Annual review of nutrition·2026
Same journal

The Paradox and Future of GLP-1/GIP Combination Therapies: Efficacy and Mechanisms.

Annual review of nutrition·2026
See all related articles

Related Experiment Video

Updated: Feb 24, 2026

In Ovo Feeding of Commercial Broiler Eggs: An Accurate and Reproducible Method to Affect Muscle Development and Growth
06:38

In Ovo Feeding of Commercial Broiler Eggs: An Accurate and Reproducible Method to Affect Muscle Development and Growth

Published on: September 20, 2021

3.0K

Nutrition from the Inside Out.

Dennis M Bier1

  • 1USDA/ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, Texas 77030;

Annual Review of Nutrition
|August 23, 2017
PubMed
Summary
This summary is machine-generated.

Developing stable tracer methods for pediatric hypoglycemia research revolutionized clinical investigation. This journey from measurement certainty to policy uncertainty highlights the impact of precise nutritional data.

Keywords:
San FranciscoThe American Journal of Clinical NutritionUniversity of CaliforniaWashington Universitymass spectrometrystable isotopes

Related Experiment Videos

Last Updated: Feb 24, 2026

In Ovo Feeding of Commercial Broiler Eggs: An Accurate and Reproducible Method to Affect Muscle Development and Growth
06:38

In Ovo Feeding of Commercial Broiler Eggs: An Accurate and Reproducible Method to Affect Muscle Development and Growth

Published on: September 20, 2021

3.0K

Area of Science:

  • Clinical Investigation
  • Nutritional Science
  • Biomedical Measurement

Background:

  • Pioneered stable, nonradioactive tracers to accurately measure pediatric hypoglycemia in children with limited food intake.
  • Initial focus on precise measurement evolved to address broader nutritional questions and clinical investigation methodologies.

Discussion:

  • The development of stable isotope tracers replaced radiotracers in human clinical investigation, enhancing accuracy and precision.
  • Reflections on the transition from radiotracers to stable isotopically labeled tracers in both pediatric and adult clinical research.

Key Insights:

  • Accurate and precise nutritional data are crucial for reliable public policy recommendations and guidelines.
  • Inaccurate measurements and lack of transparency in reporting nutritional data lead to policy uncertainty and debate.

Outlook:

  • Future research should prioritize measurement certainty and transparency to inform evidence-based nutritional policies.
  • The evolution of tracer methodologies underscores the importance of rigorous scientific methods in nutrition and clinical practice.