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| ID | Type | Description | Link |
|---|---|---|---|
| 262245 | Other Identifier | IRAS | |
| 19/EM/0291 | Other Identifier | REC |
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A 2 x 2 cross-over dietary intervention trial designed to investigate the effects of low glycemic index (LGI) versus high glycemic index (HGI) diet on hepatic fat accumulation and gut microbiota composition in participants with NAFLD.
Participants will be allocated randomly to a 2-week either high GI (HGI) or low GI (LGI) diet followed by a 4-week wash-out period and then the LGI or HGI diet, opposite to the first 2-weeks (N= 16).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| LGI Diet | Experimental | low glycemic index diet |
|
| HGI Diet | Other | High glycemic index diet |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| low glycemic index diet | Other | • Three-day cycle menu of LGI diet will be designed and supplied to each participant in an amount designed to meet their estimated energy requirements. The percentage energy from protein, fat and carbohydrate will be the same in the two diets. Each diet period of the trial will last for two weeks. |
| Measure | Description | Time Frame |
|---|---|---|
| liver fat content | To assess the difference in liver fat content between LGI and HGI diet groups in participants with NAFLD using MRI/S | At baseline |
| liver fat content | To assess the difference in liver fat content between LGI and HGI diet groups in participants with NAFLD using MRI/S | 2 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Gut microbial composition | To assess the difference in gut microbiota composition between LGI and HGI diet groups in participants with NAFLD using 16S sequencing of rRNA | At baseline |
| Gut microbial composition |
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Inclusion Criteria:
• Adult males and females aged from 18 to 65 years (balanced number).
Exclusion Criteria:
• Current smokers and excessive alcohol drinkers (> 14 units/week).
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| NIHR Nottingham Clinical Research Facility Nottingham Digestive Diseases Centre | Recruiting | Nottingham | Nottinghamshire | NG7 2UH | United Kingdom |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 42044842 | Derived | Al-Awadi AA, Grove JI, Bawden S, Vijay A, Valdes AM, Gowland P, Taylor MA, Aithal GP. The effect of a two-week low glycaemic index, higher fibre diet versus high glycaemic index diet on body composition, ectopic lipids, inflammatory biomarkers, gastrointestinal hormones and gut microbiota in metabolic dysfunction-associated steatotic liver disease (MASLD): A pilot randomized cross-over study. Clin Nutr ESPEN. 2026 Jun;73:103306. doi: 10.1016/j.clnesp.2026.103306. Epub 2026 Apr 25. | |
| 34620653 |
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Within a five-year timeframe, the final anonymized trial data will be uploaded to the https://rdmc.nottingham.ac.uk public repository after consistency and quality have been verified by the project team and publication of the results. Data from this trial are intended to be presented at local and international conferences including those attended by clinicians and dietitians and will also be used as part of a Philosophy Doctorate thesis. Publications will be in peer reviewed journals. No participant will be identified in any of these publications.
within five years time-frame
Public repository. presented at local and international conferences. part of a Philosophy Doctorate thesis
| Type | Date | Date Unknown |
|---|---|---|
| Release | Mar 24, 2026 | |
| Reset | Apr 9, 2026 | |
| Release | Apr 13, 2026 | |
| Reset | May 1, 2026 |
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| Release Date | Unrelease Date | Unrelease Date Unknown | Reset Date | MCP Release Number |
|---|---|---|---|---|
| Mar 24, 2026 | Apr 9, 2026 | |||
| Apr 13, 2026 |
| ID | Term |
|---|---|
| D005234 | Fatty Liver |
| D008659 | Metabolic Diseases |
| ID | Term |
|---|---|
| D008107 | Liver Diseases |
| D004066 | Digestive System Diseases |
| D009750 | Nutritional and Metabolic Diseases |
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| High glycemic index diet | Other | Three-day cycle menu of HGI diet will be designed and supplied to each participant in an amount designed to meet their estimated energy requirements. The percentage energy from protein, fat and carbohydrate will be the same in the two diets. Each diet period of the trial will last for two weeks. |
|
|
To assess the difference in gut microbiota composition between LGI and HGI diet groups in participants with NAFLD using 16S sequencing of rRNA
| 2 weeks |
| Blood glucose level | To assess the differences in blood glucose levels between LGI and HGI diet groups in participants with NAFLD using Horiba automated analyser. . | At baseline |
| Blood glucose level | To assess the differences in blood glucose levels between LGI and HGI diet groups in participants with NAFLD using Horiba automated analyser. | 2 weeks |
| Blood insulin levels | To assess the differences in blood insulin levels between LGI and HGI diet groups in participants with NAFLD using radioimmunoassay methods . | At baseline |
| Blood insulin levels | To assess the differences in blood insulin levels between LGI and HGI diet groups in participants with NAFLD using radioimmunoassay methods . | 2 weeks |
| blood liver function tests | To assess the differences in liver function biomarkers between LGI and HGI diet groups in participants with NAFLD using Horiba automated analyser. The blood liver function tests (LFTs) to be assessed are GGT(Gamma-Glutamyl Transferase), ALP(Alkaline Phosphatase), AST(Aspartate Amino Transferase), and ALT(Alanine Amino Transferase) | At baseline |
| blood liver function test | To assess the differences in liver function biomarkers between LGI and HGI diet groups in participants with NAFLD using Horiba automated analyser. The blood liver function tests (LFTs) to be assessed are GGT(Gamma-Glutamyl Transferase), ALP(Alkaline Phosphatase), AST(Aspartate Amino Transferase), and ALT(Alanine Amino Transferase) | 2 weeks |
| blood lipids levels | To assess the differences in blood lipids levels between LGI and HGI diet groups in participants with NAFLD using Horiba automated analyser. The blood lipids biomarkers to be assessed are Total Cholesterol, Free Fatty Acids, High-density lipoprotein, low-density lipoprotein, Triglycerides. | At baseline |
| blood lipids levels | To assess the differences in blood lipids levels between LGI and HGI diet groups in participants with NAFLD using Horiba automated analyser. The blood lipids biomarkers to be assessed are Total Cholesterol, Free Fatty Acids, High-density lipoprotein, low-density lipoprotein, Triglycerides. | 2 weeks |
| blood gut hormones levels | To assess the differences in blood gut hormones levels between LGI and HGI diet groups in participants with NAFLD using radioimmunoassay (RIA) or Sandwich ELISA methods. The blood gut hormones to be assessed are Glucagon, Leptin, Ghrelin, PYY (Peptide YY), GLP-1 (Glucagon-like peptide 1). | At baseline |
| blood gut hormones levels | To assess the differences in blood gut hormones levels between LGI and HGI diet groups in participants with NAFLD using radioimmunoassay (RIA) or Sandwich ELISA methods. The blood gut hormones to be assessed are Glucagon, Leptin, Ghrelin, PYY (Peptide YY), GLP-1 (Glucagon-like peptide 1). | 2 weeks |
| Plasma Short Chain Fatty Acids (SCFAs) | To investigate the differences in plasma SCFAs between LGI and HGI diet groups in participants with NAFLD. | At baseline |
| Plasma Short Chain Fatty Acids (SCFAs) | To investigate the differences in plasma SCFAs between LGI and HGI diet groups in participants with NAFLD. | 2 weeks |
| Anthropometric measurements | Weight in kg, Height in meters will be combined to report BMI kg/m^2 or each study arm | At baseline |
| Anthropometric measurements | Weight in kg, Height in meters will be combined to report BMI kg/m^2 or each study arm | 2 weeks |
| Body composition Fat Mass | Bio-electrical Impedance analysis (BIA) will be used to assess the body composition of fat mass %. | At baseline |
| Body composition Fat Mass | Bio-electrical Impedance analysis (BIA) will be used to assess the body composition of fat mass %. | 2 weeks |
| Body composition Muscle Mass | Bio-electrical Impedance analysis (BIA) will be used to assess the body composition of muscle mass %. | At baseline |
| Body composition Muscle Mass | Bio-electrical Impedance analysis (BIA) will be used to assess the body composition of muscle mass %. | 2 weeks |
| Body composition Water Content | Bio-electrical Impedance analysis (BIA) will be used to assess the body composition of water content %. | At baseline |
| Body composition Water Content | Bio-electrical Impedance analysis (BIA) will be used to assess the body composition of water content %. | 2 weeks |
| Visual analogue scales (VAS) | Visual analogue scales (VAS) in 0 to 10 cm scale will be used to assess the participant's subjective appetite (hunger and fullness) during the each study arm. | through study completion, an average of two weeks |
| Derived |
| Al-Awadi A, Grove J, Taylor M, Valdes A, Vijay A, Bawden S, Gowland P, Aithal G. Effects of an isoenergetic low Glycaemic Index (GI) diet on liver fat accumulation and gut microbiota composition in patients with non-alcoholic fatty liver disease (NAFLD): a study protocol of an efficacy mechanism evaluation. BMJ Open. 2021 Oct 7;11(10):e045802. doi: 10.1136/bmjopen-2020-045802. |
| May 1, 2026 |