Study Results
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Basic Information
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RECRUITING
NA
8 participants
INTERVENTIONAL
2025-12-19
2026-06-19
Brief Summary
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ccident rates are higher during the festive season. Drinking high-alcohol beverages is reputed to help the digestion of rich meals and therefore improve digestive tolerance (abdominal symptoms: heaviness, bloating) and appetite during festive meals. The 'trou normand' consists of drinking calvados (alcohol: 40°) + 1 scoop of sorbet during the meal to improve digestion. The 'trou normand' is very popular on social networks and on restaurant menus, particularly during festive occasions such as weddings and Christmas meals. This belief may encourage the consumption of strong alcohol during festive meals, which is added to the usual alcohol consumption during this type of meal (wine), significantly increasing blood alcohol levels since 2.5 cl of an alcoholic beverage at 40° will have the same effect as 10 cl of wine at 10-12°. However, the alleged benefit of alcohol consumption on gastric emptying has never been demonstrated. On the contrary, some data in the literature suggest that alcohol consumption is associated with a slowing of gastric emptying.
The aim of this study is therefore to evaluate specifically the effect of strong alcohol consumption on gastric emptying of the liquid and solid components of a festive meal, as well as the effect on abdominal symptoms and appetite.
After verification of eligibility criteria and gastric content by an initial ultrasound examination and an alcohol test, the volunteers will be asked to consume a standardised meal of 1850 Kcal accompanied by a 12 cl glass of white wine (12°) at the start of the meal, a 12 cl glass of red wine with the main course (12°) and 2 glasses of water (20 cl) over 90 minutes. According to the randomisation, the volunteer will be invited, before the cheese and dessert, at the 70th minute, to drink 2.5 cl of water + 1 scoop of sorbet or 2.5 cl of Calvados 40° + 1 scoop of sorbet before the cheese and dessert, which will then be consumed within 20 minutes.
Immediately before ingesting the test drink, an ultrasound examination of the antrum will be carried out to measure the antral cross-sectional area. An antral ultrasound will be carried out 15, 45, 60, 90, 120, 150 and 180 minutes after the end of the meal, blind to the drink ingested, and a breathalyser test will be carried out at times 15, 90, 180 min and possibly 300 min after the end of the meal if the exhaled alcohol level measured at 180 min was greater than 0.25 mg/l of exhaled air. Volunteers will also be asked to indicate their abdominal discomfort and appetite on a seven-choice Likert scale before starting to eat the meal, then at the end of the standardised meal, then 1 h 30 and 3 h after the end of the meal.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
CROSSOVER
BASIC_SCIENCE
SINGLE
Study Groups
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Calvados
Ingestion of test drink: Calvados. The volunteer will be invited to drink 2.5 cl of Calvados 40° at the 70th minute of the meal, before the cheese and dessert
Standardised test meal
Ingestion of a 1850 Kcal standardised 'Christmas meal' identical for each session. It will consist of the following elements Assortment of Picard Mini-Puff Pastry Aperitifs: 70g = 210 Kcal 1 glass of white wine = 85 Kcal with the aperitif
1 slice of vacuum-packed foie gras = 50 g = 230 Kcal
1 portion of turkey leg 200 g = 250 Kcal 50 g turkey cream = 130 Kcal
1 portion of steamed potatoes = 200 g = 160 Kcal
1 glass of red wine = 85 Kcal to accompany the main course
1 slice of white bread (30 g) = 55 Kcal to eat with the main course Blind test or control drink (trou normand or placebo = water) / 1 scoop of apple sorbet
1 portion 30 g camembert = 90 Kcal + White bread 1 slice (30 g) = 85 Kcal with the cheese
1 portion crumble 100 g = 250 Kcal The different elements will be weighed for each participant.
Ingestion of test drink
Ingestion of 2,5 cl Calvados 40° at the 70th min of the meal (before cheese and dessert)
Ultrasound measurement of the antral area
Ultrasound measurement of the antral area in the volunteers lying in the 45° semi-recumbent position using an ultrasound machine (Venue Go™, GE Healthcare, Chicago, IL, USA) fitted with an abdominal transducer (probe C1-5, 1.5 to 5 MHz) to obtain a sagittal cross-section of the antrum in a plane including the left lobe of the liver and the aorta. This will be performed during the intake visit, immediately before the test drink ingestion (70th min of the meal) and 15, 45, 60, 90, 120, 150, 180 min after the end of the meal
Breathalyser for measurement of the level of exhaled ethanol
Breathalyser performed during the intake visit, and 15, 90, 180 and 300 min (if the exhaled alcohol level measured at 180 minutes was greater than 0.25 mg/l of breath) after the end of the meal.
Discomfort
discomfort will be assessed using seven-choice Likert scales immediately before the test drink ingestion and 90 min and 180 min after the end of the standardized meal.
Appetite
Appetite will be assessed using seven-choice Likert scales immediately before the test drink ingestion and 90 min and 180 min after the end of the standardized meal.
Pregnancy urine test carried out during the intake visit on the day of the protocol
Pregnancy urine test carried out during the intake visit on the day of the protocol for exclusion of pregnant woman.
Water
Ingestion of Control drink: Water. The volunteer will be invited to drink 2.5 cl of water at the 70th minute of the meal, before the cheese and dessert
Standardised test meal
Ingestion of a 1850 Kcal standardised 'Christmas meal' identical for each session. It will consist of the following elements Assortment of Picard Mini-Puff Pastry Aperitifs: 70g = 210 Kcal 1 glass of white wine = 85 Kcal with the aperitif
1 slice of vacuum-packed foie gras = 50 g = 230 Kcal
1 portion of turkey leg 200 g = 250 Kcal 50 g turkey cream = 130 Kcal
1 portion of steamed potatoes = 200 g = 160 Kcal
1 glass of red wine = 85 Kcal to accompany the main course
1 slice of white bread (30 g) = 55 Kcal to eat with the main course Blind test or control drink (trou normand or placebo = water) / 1 scoop of apple sorbet
1 portion 30 g camembert = 90 Kcal + White bread 1 slice (30 g) = 85 Kcal with the cheese
1 portion crumble 100 g = 250 Kcal The different elements will be weighed for each participant.
Ingestion of Control drink
Ingestion of 2,5 cl water at the 70th min of the meal (before cheese and dessert)
Ultrasound measurement of the antral area
Ultrasound measurement of the antral area in the volunteers lying in the 45° semi-recumbent position using an ultrasound machine (Venue Go™, GE Healthcare, Chicago, IL, USA) fitted with an abdominal transducer (probe C1-5, 1.5 to 5 MHz) to obtain a sagittal cross-section of the antrum in a plane including the left lobe of the liver and the aorta. This will be performed during the intake visit, immediately before the test drink ingestion (70th min of the meal) and 15, 45, 60, 90, 120, 150, 180 min after the end of the meal
Breathalyser for measurement of the level of exhaled ethanol
Breathalyser performed during the intake visit, and 15, 90, 180 and 300 min (if the exhaled alcohol level measured at 180 minutes was greater than 0.25 mg/l of breath) after the end of the meal.
Discomfort
discomfort will be assessed using seven-choice Likert scales immediately before the test drink ingestion and 90 min and 180 min after the end of the standardized meal.
Appetite
Appetite will be assessed using seven-choice Likert scales immediately before the test drink ingestion and 90 min and 180 min after the end of the standardized meal.
Pregnancy urine test carried out during the intake visit on the day of the protocol
Pregnancy urine test carried out during the intake visit on the day of the protocol for exclusion of pregnant woman.
Interventions
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Standardised test meal
Ingestion of a 1850 Kcal standardised 'Christmas meal' identical for each session. It will consist of the following elements Assortment of Picard Mini-Puff Pastry Aperitifs: 70g = 210 Kcal 1 glass of white wine = 85 Kcal with the aperitif
1 slice of vacuum-packed foie gras = 50 g = 230 Kcal
1 portion of turkey leg 200 g = 250 Kcal 50 g turkey cream = 130 Kcal
1 portion of steamed potatoes = 200 g = 160 Kcal
1 glass of red wine = 85 Kcal to accompany the main course
1 slice of white bread (30 g) = 55 Kcal to eat with the main course Blind test or control drink (trou normand or placebo = water) / 1 scoop of apple sorbet
1 portion 30 g camembert = 90 Kcal + White bread 1 slice (30 g) = 85 Kcal with the cheese
1 portion crumble 100 g = 250 Kcal The different elements will be weighed for each participant.
Ingestion of test drink
Ingestion of 2,5 cl Calvados 40° at the 70th min of the meal (before cheese and dessert)
Ingestion of Control drink
Ingestion of 2,5 cl water at the 70th min of the meal (before cheese and dessert)
Ultrasound measurement of the antral area
Ultrasound measurement of the antral area in the volunteers lying in the 45° semi-recumbent position using an ultrasound machine (Venue Go™, GE Healthcare, Chicago, IL, USA) fitted with an abdominal transducer (probe C1-5, 1.5 to 5 MHz) to obtain a sagittal cross-section of the antrum in a plane including the left lobe of the liver and the aorta. This will be performed during the intake visit, immediately before the test drink ingestion (70th min of the meal) and 15, 45, 60, 90, 120, 150, 180 min after the end of the meal
Breathalyser for measurement of the level of exhaled ethanol
Breathalyser performed during the intake visit, and 15, 90, 180 and 300 min (if the exhaled alcohol level measured at 180 minutes was greater than 0.25 mg/l of breath) after the end of the meal.
Discomfort
discomfort will be assessed using seven-choice Likert scales immediately before the test drink ingestion and 90 min and 180 min after the end of the standardized meal.
Appetite
Appetite will be assessed using seven-choice Likert scales immediately before the test drink ingestion and 90 min and 180 min after the end of the standardized meal.
Pregnancy urine test carried out during the intake visit on the day of the protocol
Pregnancy urine test carried out during the intake visit on the day of the protocol for exclusion of pregnant woman.
Eligibility Criteria
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Inclusion Criteria
* with no significant medical history (American Society of Anesthesiologists class ASA 1)
* fasted for at least 6 hours for alcohol and solids
* signed informed consent
* affiliated to the social security system.
Exclusion Criteria
* young drivers holding a probationary licence
* persons deprived of their liberty by a judicial or administrative decision
* persons under psychiatric care
* a history of oeso-gastro-duodenal surgery
* current pregnancy or breast-feeding
* any pathology that may affect gastric volume: insulin-dependent diabetes or diabetes mellitus, gastro-oesophageal reflux, hypothyroidism or hyperthyroidism
* treatments affecting gastric motility (erythromycin, metoclopramide, etc.)
* any treatment incompatible with alcohol consumption
* any pathology incompatible with alcohol consumption (liver or neurological pathologies in particular)
* obesity defined by a body mass index ≥ 30 kg/m².
* Alcohol dependence (AUDIT questionnaire): Alcohol Use Disorders Identification Test) is a simple 10-question test.
* Volunteers with a direct hierarchical link to the investigators
18 Years
65 Years
ALL
Yes
Sponsors
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Hospices Civils de Lyon
OTHER
Responsible Party
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Locations
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Hopital Femme Mère enfant
Bron, Rhone, France
Countries
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Central Contacts
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Facility Contacts
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Other Identifiers
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69HCL24_0480
Identifier Type: -
Identifier Source: org_study_id
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