Low blood sugar
Low blood sugar or hypoglycaemia (‘hypo’ for short) can happen for a number of reasons. Usually, your blood glucose level will be around 4mmol/l if you’re hypo.
If you miss or delay a meal or snack, don’t eat enough carbohydrate, exercise too hard, drink alcohol, take too much medicine or if the weather’s hot, you might feel one or more of these symptoms:
- excessive sweating
- feeling weak or cold
- tingling lips and tongue
- pounding heart
- blurry vision
- poor concentration
- personality change, irritation or anger.
Treating low blood sugar
You should treat low blood sugar quickly by doing one of these steps:
- Take five to six glucose or dextrose tablets.
- Drink 90 to 120ml of Lucozade.
- Drink three to four teaspoons of sugar dissolved in water.
- Drink 150 to 200ml of a sugary fizzy drink (not sugar free).
- Eat four to six jelly babies.
If you don’t feel better in 10 minutes, or if your blood glucose is still less than 4mmol/l, repeat one of the steps up to three times until your glucose level goes up.
Once your blood glucose level’s above 4mmol/l and you feel better, eat a small starchy snack like a large piece of a fruit, a couple of plain biscuits, a glass of milk or your usual meal, if it’s due.