If you choose to drink alcohol, public health bodies suggest doing so in moderation,and different countries set different limits.
US guidelines say one drink (14 grams of alcohol) per day for women and two drinks for men.
In UK, limits are slightly lower at about eight drinks per week for both men and women, ideally spread over three or more days.
Alcohol contains seven calories per gram - which is more than protein and even carbs, which both have four calories. Fat has nine calories per gram.
Your liver processes alcohol, some of it leaves your body through your breath, urine and sweat.
Studies have shown moderate drinking may help reduce the risk of developing type 2 diabetes,but heavy drinking increases the risk.
Drinking less,or no, alcohol will help your immune system function as normal,leaving you stronger, healthier and fighting fit.
Heavy drinking can damage your immune system and therefore your ability to fight infections and recover from injuries,