Low Blood Sugar Beyond Diabetes: Hidden Causes and Warning Signs

Low blood sugar is not limited to people with diabetes. Hormonal disorders, inherited conditions and liver problems can also interfere with the body’s ability to maintain a steady supply of glucose.

Glucose is a key source of energy, and the body normally regulates it through hormones and stored reserves. Disruptions to those processes can cause blood sugar to fall, even in someone who has never been diagnosed with diabetes.

Warning signs can include shaking, sweating, hunger, dizziness and difficulty concentrating. A severe drop can affect brain function, leading to confusion, seizures or loss of consciousness. These symptoms require urgent medical attention.

Anyone experiencing repeated episodes should seek a medical assessment rather than assume diabetes is the cause. Identifying an underlying hormonal, inherited or liver-related condition can help guide treatment. If someone becomes unconscious, do not give food or drink by mouth; call emergency services.