Chemicals and Drugs

Trans Fatty Acids

UNSATURATED FATTY ACIDS that contain at least one double bond in the trans configuration, which results in a greater bond angle than the cis configuration. This results in a more extended fatty acid chain similar to SATURATED FATTY ACIDS, with closer packing and reduced fluidity. HYDROGENATION of unsaturated fatty acids increases the trans content.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

UNSATURATED FATTY ACIDS that contain at least one double bond in the trans configuration, which results in a greater bond angle than the cis configuration. This results in a more extended fatty acid chain similar to SATURATED FATTY ACIDS, with closer packing and reduced fluidity. HYDROGENATION of unsaturated fatty acids increases the trans content.

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Synonyms

7 entry terms
  • Trans Fatty Acid
  • Trans-Fatty Acids
  • Acid, Trans Fatty
  • Acids, Trans Fatty
  • Acids, Trans-Fatty
  • Fatty Acid, Trans
  • Fatty Acids, Trans

MeSH Record

Aspects Covered

28 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, deficiency, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

Indexing Annotation

coord with specific fatty acid if pertinent

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History Note

2004

MeSH Record

Previous Indexing

  • Fatty Acids (1968-2003)

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References

  1. National Library of Medicine. Trans Fatty Acids. Medical Subject Headings (MeSH). 2026. Unique ID D044242. http://id.nlm.nih.gov/mesh/2026/D044242
  2. Trans Fatty Acids. In: Wikipedia. https://en.wikipedia.org/wiki/Trans_fat
  3. Trans Fatty Acids. In: Wikidata. https://www.wikidata.org/wiki/Q243465