9 doctors weighed in:
Low blood sugar. What causes it?
9 doctors weighed in

Dr. Jennie Law
Internal Medicine - Endocrinology
7 doctors agree
In brief: Definition is key
True and clincally significant 'low blood sugar' is actually not as simple as 'below a cut-off.
' for diabetics it is (we say <70 is low), bc they are on meds that can cause severe lows. But for non-diabetics/healthy ppl, sugar in 40's can be normal. It becomes a problem only if it causes true hypoglycemic symptoms- in that case, see endocrinologist for confirmation and evaluation of cause.

In brief: Definition is key
True and clincally significant 'low blood sugar' is actually not as simple as 'below a cut-off.
' for diabetics it is (we say <70 is low), bc they are on meds that can cause severe lows. But for non-diabetics/healthy ppl, sugar in 40's can be normal. It becomes a problem only if it causes true hypoglycemic symptoms- in that case, see endocrinologist for confirmation and evaluation of cause.
Dr. Jennie Law
Dr. Jennie Law
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Dr. Alvin Fried
Internal Medicine - Diabetology
1 doctor agrees
In brief: Glucose metabolism
There are different forms of hypoglycemia (low blood sugar).
The most common is called reactive hypoglycemia in which the sugar rises high and then dips low a few hours later. My personal view is that this is an early stage in the development of diabetes. If you go the exercise and diet route this is not a high risk, however. A six meal, low carb diet is best.

In brief: Glucose metabolism
There are different forms of hypoglycemia (low blood sugar).
The most common is called reactive hypoglycemia in which the sugar rises high and then dips low a few hours later. My personal view is that this is an early stage in the development of diabetes. If you go the exercise and diet route this is not a high risk, however. A six meal, low carb diet is best.
Dr. Alvin Fried
Dr. Alvin Fried
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Dr. Michael Rothman
Internal Medicine
In brief: 4 reactive hypoglyce
Eat only meat or fish or cheese or eggs or poultry and low starch veggies, drink only water. In other words avoid all carbs, carbs will only briefly raise your sugar levels and then you will get hungry again.
The fats in the meat or fish or cheese or eggs or poultry will act like a "log on your metabolic fire" to keep your blood sugar stable for hours.

In brief: 4 reactive hypoglyce
Eat only meat or fish or cheese or eggs or poultry and low starch veggies, drink only water. In other words avoid all carbs, carbs will only briefly raise your sugar levels and then you will get hungry again.
The fats in the meat or fish or cheese or eggs or poultry will act like a "log on your metabolic fire" to keep your blood sugar stable for hours.
Dr. Michael Rothman
Dr. Michael Rothman
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