Amino Acids May 2011 PMID 21387089

The metabolic burden of creatine synthesis.

John T Brosnan, Robin P da Silva, Margaret E Brosnan

Mentions

32
Peak: 16 in Sep 2024
across 2 sources since May 2020

Extended reach

240,187
potential audience

Total likes

271

Video views

5,607

Mentions per month

May 2020 – Feb 2025

Where it's discussed

  • X / Twitter30 posts
  • YouTube2 videos

AI synopsis

What people are saying

Many discussions delve into the metabolic costs of creatine synthesis, with posts referencing the substantial use of methyl groups and implications for vegetarians and athletes. Words like 'imposes,' 'accounts for,' and references to 'methylation capacity' suggest a serious tone, while some comments reflecting personal experiences, such as hair thinning or supplement choices, show a personal impact perspective.

AgreementModerate agreement

Most discussions acknowledge the significant metabolic burden of creatine synthesis, emphasizing its importance in amino acid metabolism.

InterestHigh interest

The range of posts shows high curiosity, especially when discussing how creatine synthesis affects methylation and muscle health.

EngagementModerate engagement

Posts include technical details about amino acids and methyl groups, reflecting moderate to deep engagement with the subject.

ImpactModerate impact

The discussions highlight concerns about health, metabolic processes, and implications for dietary choices, indicating a modest but meaningful perceived impact.

Abstract in brief

  • Creatine synthesis is essential for replacing creatine lost through conversion to creatinine and excretion in urine, especially as animals grow and their tissues expand.
  • The process requires three amino acids (glycine, methionine, arginine) and three enzymes, with significant use of methyl groups from S-adenosylmethionine (SAM), making it a considerable metabolic burden.
  • While dietary intake can replace about half of the creatine lost in omnivores, vegetarians depend entirely on endogenous synthesis, which heavily affects the metabolism of methionine and arginine, key amino acids in this process.

Top posts

Most liked on X and Bluesky
Rene Sugar
@renesugar · X

The metabolic burden of creatine synthesis #MECFS #LongCovid https://t.co/NqH26yPFze

Sep 12, 2024 · 14 likes · 4 shares · 3,984 followers View post →
Vitalholis
@vitalholis · X

Les sources : https://t.co/URLfM3aGY0 https://t.co/JGFjuxaPip https://t.co/8uUWK2b75e https://t.co/rUHijTQ7Sc https://t.co/HZG0uoDcnf https://t.co/o2wwAeaciw https://t.co/a9xUmnhxO1 https://t.co/5hF4Y7NvuN https://t.co/soTcUhdorc https://t.co/emFDUqCbxi

Aug 29, 2023 · 3 likes · 1 share · 19,612 followers View post →
Rene Sugar
@renesugar · X

@IsabelRamirezRD @Naomi_D_Harvey @KatBoniface The metabolic burden of creatine synthesis https://t.co/NqH26yPFze "Mitochondrial mutagenesis as well as functional consequences could be normalized by increasing intracellular creatine levels." https://t.co/c2YxyFpMg4

Feb 11, 2025 · 2 likes · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "However, creatine synthesis does account for approximately 40% of all of the labile methyl groups provided by S-adenosylmethionine (SAM) and,"

Sep 12, 2024 · 2 likes · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "Creatine synthesis requires three amino acids: glycine, methionine and arginine, and three enzymes: L-arginine:glycine amidinotransferase (AGAT), methionine adenosyltransferase (MAT) and guanidinoacetate methyl-transferase (GAMT)."

Sep 12, 2024 · 2 likes · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "as such, places an appreciable burden on the provision of such methyl groups, either from the diet or via de novo methylneogenesis."

Sep 12, 2024 · 1 like · 3,984 followers View post →

All mentions

Rene Sugar
@renesugar · X

@IsabelRamirezRD @Naomi_D_Harvey @KatBoniface The metabolic burden of creatine synthesis https://t.co/NqH26yPFze "Mitochondrial mutagenesis as well as functional consequences could be normalized by increasing intracellular creatine levels." https://t.co/c2YxyFpMg4

Feb 11, 2025 · 2 likes · 3,984 followers View post →
Rene Sugar
@renesugar · X

@subversivepsych The metabolic burden of creatine synthesis https://t.co/NqH26yPFze https://t.co/4P0MJCgaph "creatine synthesis does account for approximately 40% of all of the labile methyl groups"

Feb 5, 2025 · 1 like · 3,984 followers View post →
Diane Langdon
@diane_idaho · X

@maxlugavere I am homozygous for 3 methylation SNPs (MTHFR C667T, MTRR and SHMT). Per Chris Masterjohn, creatinine synthesis takes up nearly half of a person’s available methylation capacity. Excess creatinine is peed out so take in AM to avoid nighttime urination. https://t.co/AmlMfmvwb7

Jan 18, 2025 · 528 followers View post →
Nutrem
@MxNutrem · X

También hay que mencionar que si consumes creatina, pero no mantienes una buena masa muscular. La creatina no se irá al músculo y las mitocondrias, sino que se excretara como creatinina. https://t.co/WNvzW48xOc

Dec 20, 2024 · 1 like · 258 followers View post →
Maitreya
@Mithreu · X

RT @renesugar: https://t.co/4P0MJCgaph "Creatine synthesis is, therefore, a quantitatively major pathway in amino acid metabolism and impo…

Sep 13, 2024 · 1 share · 1,257 followers View post →
Rhi
@rhirhiarhii · X

RT @renesugar: The metabolic burden of creatine synthesis #MECFS #LongCovid https://t.co/NqH26yPFze

Sep 12, 2024 · 4 shares · 2,104 followers View post →
Mg2+ Papi, the BowTied Mg2+
@Grimhood · X

RT @renesugar: The metabolic burden of creatine synthesis #MECFS #LongCovid https://t.co/NqH26yPFze

Sep 12, 2024 · 4 shares · 133,457 followers View post →
Rene Sugar
@renesugar · X

The metabolic burden of creatine synthesis #MECFS #LongCovid https://t.co/WeTuxuktRP

Sep 12, 2024 · 1 like · 3,984 followers View post →
Richard
@PGC1a_RB · X

RT @renesugar: The metabolic burden of creatine synthesis #MECFS #LongCovid https://t.co/NqH26yPFze

Sep 12, 2024 · 4 shares · 15,063 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "Creatine synthesis is, therefore, a quantitatively major pathway in amino acid metabolism and imposes an appreciable burden on the metabolism of methionine and of arginine."

Sep 12, 2024 · 1 like · 1 share · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "Creatine synthesis consumes some 20–30% of arginine’s amidino groups, whether provided in the diet or synthesized within the body."

Sep 12, 2024 · 1 like · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "as such, places an appreciable burden on the provision of such methyl groups, either from the diet or via de novo methylneogenesis."

Sep 12, 2024 · 1 like · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "However, creatine synthesis does account for approximately 40% of all of the labile methyl groups provided by S-adenosylmethionine (SAM) and,"

Sep 12, 2024 · 2 likes · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "Creatine synthesis does not appear to place a major burden on glycine metabolism in adults since this amino acid is readily synthesized."

Sep 12, 2024 · 1 like · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "However, since dietary creatine is only provided in animal products, principally in meat and fish, virtually all of the creatine loss in vegetarians must be replaced via endogenous synthesis."

Sep 12, 2024 · 1 like · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "Creatinine loss is lower in females and in older age groups because of lower muscle mass." "Approximately half of this creatine lost to creatinine can be replaced, in omnivorous individuals, by dietary creatine."

Sep 12, 2024 · 1 like · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "The entire glycine molecule is consumed in creatine synthesis but only the methyl and amidino groups, respectively, from methionine and arginine." "Creatinine loss averages approximately 2 g (14.6 mmol) for 70 kg males in the 20- to 39-year age group."

Sep 12, 2024 · 1 like · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "Creatine synthesis requires three amino acids: glycine, methionine and arginine, and three enzymes: L-arginine:glycine amidinotransferase (AGAT), methionine adenosyltransferase (MAT) and guanidinoacetate methyl-transferase (GAMT)."

Sep 12, 2024 · 2 likes · 3,984 followers View post →
Rene Sugar
@renesugar · X

https://t.co/4P0MJCgaph "Creatine synthesis is required in adult animals to replace creatine that is spontaneously converted to creatinine and excreted in the urine." "Additionally, in growing animals it is necessary to provide creatine to the expanding tissue mass."

Sep 12, 2024 · 1 like · 3,984 followers View post →
Rene Sugar
@renesugar · X

The metabolic burden of creatine synthesis #MECFS #LongCovid https://t.co/NqH26yPFze

Sep 12, 2024 · 14 likes · 4 shares · 3,984 followers View post →
DrAlvaroBustamante
@DrAlvaroBustam · X

3) J. T. Brosnan et al. ´The metabolic burden of creatine synthesis`. Amino Acids. 2011, pp. 1325-31

Aug 28, 2024 · 30 followers View post →
Nikolas Korasidis
@Renelvon · X

@Rainmaker1973 The daily loss for the average male is 2-3g, so the comparison to 5g is exaggeration. Also, the body makes creative from other amino acids. Glycine is probably the one most people need help with. https://t.co/YP2vtw1OLF

Jun 20, 2024 · 385 followers View post →
Says who ?
@sayswhomostdef · X

RT @vitalholis: Les sources : https://t.co/URLfM3aGY0 https://t.co/JGFjuxaPip https://t.co/8uUWK2b75e https://t.co/rUHijTQ7Sc https://t.co/…

Aug 29, 2023 · 1 share · 2,765 followers View post →
Vitalholis
@vitalholis · X

Les sources : https://t.co/URLfM3aGY0 https://t.co/JGFjuxaPip https://t.co/8uUWK2b75e https://t.co/rUHijTQ7Sc https://t.co/HZG0uoDcnf https://t.co/o2wwAeaciw https://t.co/a9xUmnhxO1 https://t.co/5hF4Y7NvuN https://t.co/soTcUhdorc https://t.co/emFDUqCbxi

Aug 29, 2023 · 3 likes · 1 share · 19,612 followers View post →
ParkerAD
@Par_3erAD · X

@JylleanS @jason_gutt @jordanbpeterson There is only one main pathway from creatine synthesis, methyltransferase reactions, that is considered to impose a genuinely significant burden on the human body. Creatine production is expected to consume 40% of the S-Adenosyl methionine gained from diet.https://t.co/D6i088C9Dp

Mar 26, 2023 · 22 followers View post →
Slobodan Fuletic
@sloba116 · X

@Tarunashree1 https://t.co/NCLOPpYqlA

Dec 7, 2022 · 37 followers View post →
Adam Ramos
@AdamRamos441 · X

@TasteGrass I swear that shit was making my hair thin out. I just eat steak, eggs and milk everyday. I take ZMA and glycine before bed. https://t.co/rWNrgGW9CD

May 13, 2021 · 510 followers View post →
Jared Polowick
@jaredpolowick · X

@conorverbruggen @aled_zachary https://t.co/b0VbO22zsX https://t.co/U92FeJvlRA https://t.co/i95qIGxCcD

Jun 19, 2020 · 1 like · 2,669 followers View post →
Redztruthseeker - Aarush
@RedzTruthSeeker · X

@Yashovardhan_13 @CognitiveDiss0 56/n:Creatine is a non-essential nutrient that humans can make from other amino acids ( https://t.co/30jg9br8Xc).

May 4, 2020 · 34 followers View post →
Redztruthseeker - Aarush
@RedzTruthSeeker · X

@Yashovardhan_13 @CognitiveDiss0 If athletes need Creatine, one can suppliment like most athletes do..as far as PB diet lacking creatine is concerned Its an non-essential nutrient that humans can make from other amino acids : https://t.co/30jg9b9xyC

May 3, 2020 · 34 followers View post →