Individually wrapped dextrose tablets. Dextrose goes directly into the blood, so it's a quick way to keep the body supplied with carbohydrates (0.5 CU/tablet).
°Regulation (EU) no. 432/2012 for magnesium: Magnesium contributes to normal metabolism
Dextrose (87 %), maltodextrin, magnesium carbonate, anti-caking agent (magnesium salts of fatty acids), acid (citric acid), flavouring.