Chemical structurre of LaKe (IMAGE) Aarhus University Caption The illustration to the left shows the chemical structure of LaKe. The graphs to the right show how the blood concentrations of lactate and ketones (BHB) change over time in rats that have ingested either LaKe (blue curves) or a control substance (black curves). Both lactate and BHB can be seen to increase significantly in the rats that have been given LaKe. Credit Aarhus University/Thomas Poulsen Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.