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Related Concept Videos

Overview of Protein Metabolism01:21

Overview of Protein Metabolism

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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...
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Proteins: Dietary Sources and Requirements01:28

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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...
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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...
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What are Proteins?01:28

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Proteins are polymers of amino acids linked together by peptide bonds. Proteins and polypeptides are interchangeably used to refer to long chains of amino acids. However, polypeptides have a molecular weight of fewer than 10,000 daltons, while proteins have greater molecular weight.  Polypeptides with less than 20 amino acids are called oligopeptides or simply peptides. Interactions among the constituent amino acid side chains of proteins help them fold into a stable 3-dimensional...
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Updated: Feb 22, 2026

Isolation of Primary Mouse Hepatocytes for Nascent Protein Synthesis Analysis by Non-radioactive L-azidohomoalanine Labeling Method
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Protein Supplements: Pros and Cons.

Jay Rabindra Kumar Samal1, Indira R Samal2

  • 1a Department of Biotechnology , Manipal Institute of Technology , Manipal , India.

Journal of Dietary Supplements
|September 23, 2017
PubMed
Summary
This summary is machine-generated.

Protein supplementation is widely used but has overlooked pros and cons. Natural food sources are preferred for protein intake, with supplements used only when necessary.

Keywords:
dietary supplementsmetabolismproteinprotein nutritionprotein safety

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Area of Science:

  • Nutrition Science
  • Dietary Supplements

Background:

  • Protein supplementation is increasingly popular among the general public and athletes.
  • It's used for meal replacement, weight reduction, and perceived health benefits.
  • Overuse by adults and adolescents is driven by purported health advantages.

Purpose of the Study:

  • To comprehensively analyze the existing literature on the benefits and drawbacks of protein supplementation.
  • To form a consensus on the advantages and disadvantages of protein supplements.
  • To highlight potential risks and overlooked aspects of protein supplement use.

Main Methods:

  • Literature search conducted on Google Scholar, PubMed, and National Center for Biotechnology Information.
  • Analysis of various articles examining protein supplementation.
  • Assimilation of existing studies to form a consensus.

Main Results:

  • Limited studies exist, with many providing insufficient evidence or lacking proper experimental conditions.
  • Protein supplements are processed and may lack essential nutrients.
  • The pros and cons of protein supplementation are often overlooked by the public.

Conclusions:

  • Protein supplements are processed and may not provide all essential nutrients.
  • Prioritize obtaining protein from natural food sources.
  • Supplementation should only be considered if dietary protein intake is insufficient.