High or low blood sugar levels can cause sudden feelings of hunger or a desire to eat, says Dacia Lyn Breeden, RD, a registered dietitian at the University of Mississippi Medical Center in Jackson. Dramatic blood sugar swings can actually feel like hunger, explains Biehl, who also has type 1 diabetes.

Does diabetes make you feel hungry all the time?

One of the most challenging aspects of living with diabetes is that it can make you extra hungry for the one thing that affects your blood sugar the most: food. More specifically, sugary food. This condition is called Polyphagia and is essentially “excessive hunger.” It's very common in people with diabetes.

Why do I suddenly feel hungry all the time?

The bottom line

You may feel hungry frequently if your diet lacks protein, fiber, or fat, all of which promote fullness and reduce appetite. Extreme hunger is also a sign of inadequate sleep and chronic stress. Additionally, certain medications and illnesses are known to cause frequent hunger.