ArticleCurrent developments in nutrition2024
Metabolic Effects of Short-Term High-Fat Intake Vary Depending on Dietary Amino Acid Composition.
Article in Current developments in nutrition, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Remote regulation of hepatic lipid secretion in the intestine by metabolic interaction of dietary arginine with ornithine.Scientific reports · 2026Article
- Metabolic Alterations Associated With Diet and Hypertension in Rats.Journal of nutrition and metabolism · 2026Article
- Beyond Protein Building Blocks: A Review of Biological Roles and Therapeutic Potential of Free Amino Acids.International journal of molecular sciences · 2025Review
- Insulin Receptor Substrate-2 Regulates the Secretion of Growth Factors in Response to Amino Acid Deprivation.International journal of molecular sciences · 2025Article
- Intermittent Fasting Partially Alleviates Dietary Margarine-Induced Morphometrical, Hematological, and Biochemical Changes in Female Mice, but Not in Males.Biochemistry research international · 2025Article
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Authors and funding
9 authors.
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Abstract
Background: It is generally accepted that excessive fat intake has undesirable effects on the energy metabolism of our body. Dietary amino acid composition is also critical to the regulation of lipid metabolism. Objectives: This study aimed to investigate whether high-fat diets (HFDs) with different amino acid deficiencies lead to different metabolic outcomes. Methods: Six-wk-old male Wistar rats were fed either a control diet (CN; 3.7 kcal/g, 12% calories from fat) or HFDs (5.1 kcal/g, 60% calories from fat) with 7 different amino acid compositions [control or methionine, arginine, histidine, lysine, threonine, or branched-chain amino acids (BCAAs) deficient], for 7 d. Tissue weights and lipid accumulation in the liver, skeletal muscle, and adipose tissue were measured, and serum biochemical parameters were analyzed. Results: Although the food intake of the HFD groups was a little less than that of the CN group, the total calorie intakes were comparable among the groups, except for histidine-deficient and BCAA-deficient groups. In rats fed am HFD with a control amino acid composition (HFCN), dramatic increase in triglyceride (TG) accumulation in the liver and serum LDL cholesterol concentration were observed compared with the CN group. However, when the arginine content in the diet was reduced, liver TG accumulation was completely inhibited, with no apparent effects on serum lipoprotein-cholesterol concentrations. Meanwhile, deficiency of the other amino acids, such as threonine, reversed HFD-induced upregulation of serum LDL cholesterol. Conclusions: It is observed that although the rats ingested an excessive amount of fat, neither ectopic fat accumulation nor dyslipidemia were always induced at least in the short term; hence, the consequent metabolic change was dependent on the dietary amino acid composition. These findings introduce an important perspective regarding HFD regimens in both scientific and clinical contexts.
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