If your blood sugar remains low, then do not consume more onions, this reduces your blood sugar even more and if you are a diabetic patient and are consuming onions, then keep checking your blood sugar, apart from this, if your If you have had surgery then you should not consume onion, it can cause blood clotting problem, so do not use onion a week before and after surgery.
If you are having problems with digestion, then you should reduce the consumption of onions, due to the consumption of more onions, the problem of digestion increases. And if you are pregnant, then you should avoid consuming more onions.