Yes, it is normal to shake when hungry.
When blood sugar levels drop too low (below four millimoles (mmol) per litre), it can trigger a range of symptoms, with shaking being a common early warning sign. This is a physiological response as the body attempts to signal the need for glucose. According to the reference, "Typical early warning signs are feeling hungry, trembling or shakiness, and sweating" when blood glucose levels are too low.
Here's a breakdown of why shaking occurs when hungry:
- Low Blood Sugar (Hypoglycemia): Hunger often indicates low blood sugar. Your body needs glucose for energy.
- Adrenaline Release: When blood sugar drops, your body releases adrenaline (epinephrine).
- Shaking as a Symptom: Adrenaline can cause shakiness, trembling, anxiety, and sweating as your body tries to mobilize glucose stores and alert you to the need to eat.
Therefore, shaking due to hunger is a typical physiological response to hypoglycemia and the release of adrenaline.
