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Related Concept Videos

Proteins: Dietary Sources and Requirements01:28

Proteins: Dietary Sources and Requirements

Consuming animal-based products offers high-quality proteins that contain optimal levels and combinations of essential amino acids, crucial for tissue repair and growth. Foods like eggs, milk, fish, and most meats are a source of complete proteins. Legumes and cereals are abundant in proteins; however, they typically lack a full range of essential amino acids. As a result, they are considered incomplete protein sources. Some plant sources like soybeans, quinoa, and amaranth do contain complete...
Key Elements for Plant Nutrition02:35

Key Elements for Plant Nutrition

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 atmosphere, the...
Overview of Protein Metabolism01:21

Overview of Protein Metabolism

Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Role of Proteins in the Human Body01:28

Role of Proteins in the Human Body

Proteins are the building block of life. They are also  the most abundant macromolecules with as many diverse roles in the body. They are part of many structural components that provide unique shapes and structures to animal cells, tissues, and organs. In addition, they also act as biological catalysts and carry out several anabolic and catabolic reactions. Notably, some proteins are chemical messengers and regulate many critical processes, such as metabolism, growth, and development. They are...
Exercise and Muscle Performance01:27

Exercise and Muscle Performance

Exercise induces a range of adaptations in muscle tissue, depending on the type and duration of activity. Such physical training can be broadly categorized into two types: endurance exercises and resistance exercises.
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Lifestyle Factors and Health01:20

Lifestyle Factors and Health

Lifestyle factors play a critical role in maintaining overall health and preventing chronic diseases. Key elements, such as regular physical activity, a nutritious diet, and abstinence from smoking, can significantly enhance physical, mental, and emotional well-being while reducing the risk of several life-threatening conditions.
Benefits of Physical Activity
Physical activity, whether through structured exercise or casual activities like walking, biking, or dancing, is a cornerstone of a...

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Related Experiment Video

Updated: May 14, 2026

Quantifying Plant Soluble Protein and Digestible Carbohydrate Content, Using Corn (Zea mays) As an Exemplar
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Quantifying Plant Soluble Protein and Digestible Carbohydrate Content, Using Corn (Zea mays) As an Exemplar

Published on: August 6, 2018

Sustaining Muscle, Cardiovascular Health, and the Environment: Is Plant-Based Protein the Key?

Teresa Cannito1,2, Alja Ivetac1,2, Nicola Fiotti1,2

  • 1Clinica Medica Unit, University of Trieste, 34128 Trieste, Italy.

Nutrients
|May 13, 2026
PubMed
Summary

Optimizing protein intake for muscle health involves considering age, with plant-based proteins suitable for younger adults and leucine-rich options for older adults. This approach supports both muscle preservation and environmental sustainability.

Keywords:
aginganimal-based proteinsenvironmentmuscleplant-based proteins

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The Multifaceted Benefits of Protein Co-expression in Escherichia coli
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The Multifaceted Benefits of Protein Co-expression in Escherichia coli

Published on: February 5, 2015

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Last Updated: May 14, 2026

Quantifying Plant Soluble Protein and Digestible Carbohydrate Content, Using Corn (Zea mays) As an Exemplar
07:19

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Published on: August 6, 2018

The Multifaceted Benefits of Protein Co-expression in Escherichia coli
12:48

The Multifaceted Benefits of Protein Co-expression in Escherichia coli

Published on: February 5, 2015

Area of Science:

  • Nutrition Science
  • Gerontology
  • Environmental Science

Background:

  • Protein intake is crucial for skeletal muscle health throughout life.
  • Optimal protein strategies must balance muscle health, cardiometabolic well-being, and environmental sustainability.
  • Plant and animal proteins differ in digestibility and amino acid profiles, impacting muscle protein synthesis (MPS), especially in aging.

Purpose of the Study:

  • To review and integrate evidence on plant versus animal-based proteins for muscle health, cardiometabolic outcomes, and environmental impact.
  • To compare the capacity of plant and animal proteins to stimulate muscle protein synthesis (MPS) across different age groups.
  • To identify optimal protein intake strategies considering age, health, and sustainability.

Main Methods:

  • Narrative review integrating acute tracer studies, randomized controlled trials, and observational research.
  • Searched PubMed and Google Scholar up to December 11, 2025, using keywords like 'plant-based protein', 'animal-based protein', 'sarcopenia', and 'muscle protein synthesis'.
  • Included citation tracking and identified 80 relevant findings.

Main Results:

  • Animal proteins, particularly whey, stimulate greater myofibrillar protein synthesis due to higher leucine density and digestibility, an effect more pronounced in older adults.
  • Plant-based protein's anabolic potential can be enhanced via higher intake, leucine fortification, or complementary blending.
  • Comparable muscle mass and strength gains are achievable with optimized plant- and animal-based diets, with plant-based diets showing cardiometabolic and environmental benefits.

Conclusions:

  • An age-specific, mixed protein approach is recommended: plant-based for younger adults, leucine-rich for older adults.
  • Optimizing per-meal protein distribution and leucine content is crucial, especially for older adults.
  • Further research is needed to define optimal plant-to-animal protein ratios for various populations.