Is tiredness from excessive alcohol partly due to low blood sugar? If so, can it be alleviated by taking glucose tablets?

Alcohol & blood suga. Tiredness resulting from excessive alcohol is due to a number of factors, including dehydration and the sedating affects of the alcohol. Alcohol consumption can wreak havoc with blood sugar, causing it to be too high and/or too low. Either of which can cause a person to feel tired. Individuals with diabetes often feel better if they avoid alcohol intake altogether or in strict moderation.
NO. Your fatigue is related to your excess alcohol consumption. It affects your sleep. Alcohol should only be used in moderation.