PMID- 9431825 OWN - NLM STAT- MEDLINE DCOM- 19980211 LR - 20190512 IS - 0306-5251 (Print) IS - 1365-2125 (Electronic) IS - 0306-5251 (Linking) VI - 44 IP - 6 DP - 1997 Dec TI - Effect of high-fat, high-protein, and high-carbohydrate meals on the pharmacokinetics of a small dose of ethanol. PG - 521-6 AB - AIMS: To investigate whether the relative amounts of fat, carbohydrate (CHO), or protein in a meal influence the pharmacokinetics of a small dose of ethanol. METHODS: Nine healthy men received ethanol (0.30 g kg-1 body weight) on five occasions in a randomized cross-over fashion. On three occasions the dose of ethanol was consumed within 15 min of eating a standardized breakfast of similar volume and calorific value but containing different amounts of fat, CHO, and protein. On two other occasions the same dose of ethanol was ingested on an empty stomach (overnight fast) or administered by intravenous (i.v.) infusion over 30 min. RESULTS: The blood-ethanol profiles showed large inter and intraindividual variations, especially when ethanol was ingested after eating food. The peak blood-alcohol concentrations (BAC) were 16.6 +/- 4.0, 17.7 +/- 7.1, and 13.3 +/- 4.0 mg dl-1 (mean +/- s.d.) after fat, CHO, and protein-rich meals and 30.8 +/- 4.3 and 54.3 +/- 6.4 mg dl-1 after fasting and i.v. infusion, respectively. The corresponding areas under the concentration-time profiles (AUC) were 1767 +/ -549, 1619 +/- 760 1270 +/- 406 mg dl-1 min after fat, CHO, and protein-rich meals compared with 3210 +/- 527 and 4786 +/- 446 mg dl-1 min after fasting and i.v. infusion, respectively. The time required to eliminate ethanol from the blood was shortened by 1-2 h in the fed-state. CONCLUSIONS: Drinking ethanol after eating a meal, regardless of the nutritional composition, decreases the systemic availability of ethanol. Because gastric emptying is slow and more prolonged with food in the stomach, the delivery of ethanol to the duodenum and the liver will be highly variable as will the hepatic clearance of ethanol. Provided that portal venous BAC remains fairly low and ethanol metabolizing enzymes are not fully saturated then part of the dose of ethanol can be cleared by hepatic first-pass metabolism (FPM), as one consequence of Michaelis-Menten elimination kinetics. FAU - Jones, A W AU - Jones AW AD - Department of Forensic Toxicology, National Laboratory of Forensic Chemistry, University Hospital, Linkoping, Sweden. FAU - Jonsson, K A AU - Jonsson KA FAU - Kechagias, S AU - Kechagias S LA - eng PT - Clinical Trial PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - England TA - Br J Clin Pharmacol JT - British journal of clinical pharmacology JID - 7503323 RN - 0 (Central Nervous System Depressants) RN - 0 (Dietary Carbohydrates) RN - 0 (Dietary Fats) RN - 0 (Dietary Proteins) RN - 3K9958V90M (Ethanol) SB - IM MH - Administration, Oral MH - Adult MH - Area Under Curve MH - Central Nervous System Depressants/administration & dosage/blood/*pharmacokinetics MH - Chromatography, Gas MH - Cross-Over Studies MH - Dietary Carbohydrates/*pharmacology MH - Dietary Fats/*pharmacology MH - Dietary Proteins/*pharmacology MH - Ethanol/administration & dosage/blood/*pharmacokinetics MH - Humans MH - Infusions, Intravenous MH - Male PMC - PMC2042884 EDAT- 1998/02/12 00:00 MHDA- 1998/02/12 00:01 PMCR- 1998/06/01 CRDT- 1998/02/12 00:00 PHST- 1998/02/12 00:00 [pubmed] PHST- 1998/02/12 00:01 [medline] PHST- 1998/02/12 00:00 [entrez] PHST- 1998/06/01 00:00 [pmc-release] AID - 10.1046/j.1365-2125.1997.t01-1-00620.x [doi] PST - ppublish SO - Br J Clin Pharmacol. 1997 Dec;44(6):521-6. doi: 10.1046/j.1365-2125.1997.t01-1-00620.x.