Cited by 291Adipose Tissue and MetabolismDiabetes, Cardiovascular Risks, and LipoproteinsMetabolism, Diabetes, and Cancer

Metabolic flexibility

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Storlien, Len, Oakes, Nick D., Kelley, David E.·2004·Proceedings of the Nutrition Society

Abstract

Human physiology needs to be well adapted to cope with major discontinuities in both the supply of and demand for energy. This adaptability requires ‘a clear capacity to utilize lipid and carbohydrate fuels and to transition between them’ ( Kelley et al. 2002 b ). Such capacities characterize the healthy state and can be termed ‘metabolic flexibility’. However, increasing evidence points to metabolic inflexibility as a key dysfunction of the cluster of disease states encompassed by the term ‘metabolic syndrome’. In obese and diabetic individuals this inflexibility is manifest in a range of metabolic pathways and tissues including: (1) failure of cephalic-phase insulin secretion (impaired early-phase prandial insulin secretion concomitant with failure to suppress hepatic glucose production and NEFA efflux from adipose tissue); (2) failure of skeletal muscle to appropriately move between use of lipid in the fasting state and use of carbohydrate in the insulin-stimulated prandial state; (3) impaired transition from fatty acid efflux to storage in response to a meal. Finally, it is increasingly clear that reduced capacity for fuel usage in, for example, skeletal muscle, as indicated by reduced mitochondrial size and density, is characteristic of the metabolic syndrome state and a fundamental component of metabolic inflexibility. Key questions that remain are how metabolic flexibility is lost in obese and diabetic individuals and by what means it may be regained.

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Crossref · 10.1079/pns2004349

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  • Skeletal muscle oxidative and fat-metabolism defects track closely with insulin sensitivity and are thought to help cause insulin resistance.

    “Defects in skeletal muscle oxidative capacity and fat metabolism are highly correlated with insulin sensitivity (IS) (1,5,12) and are believed to contribute to the pathogenesis of insulin resistance (13,14).”
  • In insulin-stimulated states, people with obesity preferentially oxidize fats rather than glucose.

    “Consequently, individuals with obesity tend to oxidize lipids instead of metabolizing glucose under insulin-stimulated conditions121.”
  • Metabolic inflexibility is present in obese people, who oxidize lipids in insulin-stimulated conditions instead of metabolizing glucose, with mitochondria being key organelles affecting this incapacity.

    “This impairment is known as 'metabolic inflexibility' (Griffin et al., 2015), that is present in obese people since they are able to oxidize lipids in insulin-stimulated conditions instead to metabolize glucose being mitochondria the key organelles affecting this incapacity (Storlien et al., 2004).”
  • Metabolic inflexibility is present in obese people because they oxidize lipids in insulin-stimulated conditions instead of metabolizing glucose.

    “that is present in obese people since they are able to oxidize lipids in insulin-stimulated conditions instead to metabolize glucose”
  • Mitochondria are the key organelles affecting metabolic inflexibility.

    “being mitochondria the key organelles affecting this incapacity (Storlien et al., 2004).”

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  1. Kelley DE, Goodpaster BH & Storlien LH (2002a) Muscle triglycerides and insulin resistance. Annual Review of Nutrition 22, 325-346.

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Authors
Storlien, L., Oakes, N. D., & Kelley, D. E.
Affiliations
  • AstraZeneca (Sweden) (SE)
  • University of Pittsburgh (US)
Corresponding author
Storlien, Len
Venue
Proceedings of the Nutrition Society
Published
2004-05
Volume
63
Issue
2
Pages
363-368
ISSN
  • 0029-6651 (ISSN-L)
  • 1475-2719
OpenAlex
W4253185896
Cited by
291
References
24
Citations by year
2026: 6 · 2025: 8 · 2024: 9 · 2023: 6 · 2022: 20 · 2021: 13 · 2020: 10 · 2019: 16 · 2018: 11 · 2017: 15 · 2016: 16 · 2015: 19 · 2014: 18 · 2013: 17 · 2012: 12
FWCI
6.47
Type
journal article
Language
en
Open access
Locations
  • Proceedings of The Nutrition Society (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
metabolic flexibility, metabolic inflexibility, metabolic syndrome, obesity, diabetes mellitus, insulin secretion, hepatic glucose production, mitochondrial density, energy homeostasis
MeSH terms
Adipose Tissue, Energy Metabolism, Glucose, Humans, Muscle, Skeletal, Metabolic Syndrome

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