Potato protein may be as good as milk for muscle protein synthesis

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Potatoes contain a small amount of protein and are a good source of amino acids. Yuji Sakai / Getty Images
  • previous search She mentioned that animal protein may work better than plant-based alternatives when it comes to muscle protein synthesis.
  • Studies have shown that potatoes can provide adequate amounts of all the essential amino acids a person needs, but they have failed to confirm their muscle-building effects.
  • Researchers in the Netherlands have now found that a protein concentrate powder derived from potatoes may support muscle repair and growth as well as animal milk protein in males.

The shift in favor of more plant-based foods is gaining steadily worldwide momentum within the medical and sports communities. However, some individuals continue to express concern about the use of plants as protein sources in sports feed products.

Sports nutritionists have long believed that certain compounds in plants may reduce the bioavailability of proteins. Moreover, some Research It is suggested that plants do not provide all the essential amino acids available from meat sources.

A new study challenges these notions, suggesting that the humble potato may be as reliable a source of protein as animal milk.

The research was partially funded by Dr Alliance for Potato Research and Educationappears in Medicine and science in sports and exercise.

Researchers at Maastricht University In the Netherlands there is a study evaluating how potato proteins enhance anabolic reactions that increase muscle mass.

Dr. Luke JC Van Loona professor Physiology of exercise and nutrition at Maastricht University Medical Center, was the principal investigator.

talk with Medical news todayShare Dr. van color:

“The [study’s] The main finding is that ingestion of potato-derived protein can increase rates of muscle protein synthesis during rest and exercise, and that this response is no different from ingesting an equivalent amount of milk protein. “

“[P]Plant-derived proteins can be as effective as high-quality animal-derived proteins for stimulating rates of muscle protein synthesis in vivo in humans. “
– Dr. Loc GC Van Loon

muscle protein synthesis (MPS) is the process by which amino acids become skeletal muscle proteins. Protein intake and exercise are vital for MPS to maintain and build skeletal muscle mass.

Eating protein while recovering from exercise can increase MPS rates. These rates vary by protein source.

Potatoes, the third most consumed crop in the world, contain only 1.5% protein based on their fresh weight. However, the protein concentrate can be extracted from the leftover potato juice that is used for feeding or disposed of.

found Dr. Van Loon and colleagues found that the amino acid composition of potato protein is similar to that ofMilk protein closely. They also said that the tubers “provide adequate amounts of all the individual essential amino acids according to World Health Organization / Food and Agriculture Organization / United Nations University Amino acid requirements, with no apparent deficiency.”

The team hypothesized that eating potato protein concentrate could increase MPS rates at rest and during exercise recovery.

They also hypothesized that potato protein might stimulate the same MPS response as milk protein.

To test their ideas, Dr. Van Loon and his team recruited 24 healthy, active males for an experiment that took place between April 2018 and February 2020. The participants’ ages ranged from 18 to 35 years.

All subjects ate a standard meal and fasted the night before the test days. Dr. Van Lun said MNT That the special diet and fasting protocol were designed not to “affect the anabolic response to the next day’s protein ingestion”.

The researchers inserted a catheter into each participant’s upper arm for an amino acid infusion, which served as a tracer for measuring MPS rates. They also inserted a second catheter into the opposite arm of the blood sampling to measure amino acid concentrations in the blood, Insulinand glucose.

Young participants trained the knee extension machine while seated and leg presses with increased loads.

After letting the participants rest, the researchers took blood samples and took muscle biopsies to determine MPS rates at rest and during recovery from exercise.

Next, the researchers randomly assigned the participants to drink a beverage containing 30 grams (about 2 tablespoons) of potato protein or milk protein. They followed this with more blood sampling and muscle biopsies.

The study concluded that “[…] Ingesting 30 grams of protein has been shown to strongly stimulate muscle protein synthesis during recovery from exercise.” Van color.

This double-blind study allowed the researchers to monitor MPS in exercised and non-exercised muscles. He also added to research showing how potato protein can benefit exercise and recovery.

However, the current study also has several limitations.

The study sample size was very small. Dr Van Loon acknowledged that “further dose-response studies in broader populations are undoubtedly necessary[…]”

Moreover, the trial included only males. Researchers in 2021 study Be warned that gender differences in physical structure, hormones, and metabolism can make it difficult to apply male-to-female research.

In addition, participants were young, and their skeletal muscle anabolic resistance to protein ingestion may differ from that of older individuals. However, the above research has stated that older and younger male athletes may share protein metabolism.

As the protein supplement market continues to expand, some researchers assert that these products pale in comparison to whole foods in terms of nutritional benefits.

Dr. Stuart Phillipsa professor and chair of the Tier 1 Canada Research in Kinesiology at McMaster University in Ontario, who was not involved in this study, believes “[…]Food trumps supplements.”

in an interview With Auburn University, Dr. Phillips acknowledged that the biggest attraction of protein supplements is their convenience.

pointed to Study 2015 Which suggests that people who get protein from foods “have more nutrient density in their diet.”