Sudden and specific food cravings—particularly for meat, fish, or eggs—could be more than just dietary whims; they might indicate a deficiency in vitamin B12, according to health experts. Such cravings, especially when persistent and accompanied by symptoms like irritability, memory issues, or mood disturbances, may be the body's way of signaling a nutritional shortfall.

Vitamin B12, essential for nerve function and red blood cell formation, is primarily found in animal-based foods. Individuals following vegetarian or vegan diets, as well as older adults who may have decreased absorption capabilities, are particularly at risk for B12 deficiency.

Registered dietitian Jennifer Pallian notes that cravings for protein-rich foods like meat or eggs, without a clear reason, could be a red flag. "Because these effects are broad and sometimes subtle, B12 deficiency can be easy to miss," she explains.

While cravings alone aren't definitive proof of a deficiency, when combined with other symptoms such as fatigue, depression, or cognitive difficulties, they warrant attention. Healthcare professionals recommend that individuals experiencing these signs consult a doctor and consider blood tests to assess their vitamin B12 levels.

Addressing a deficiency typically involves dietary adjustments to include more B12-rich foods like dairy products, eggs, and fortified cereals, or taking supplements as advised by a healthcare provider. Early detection and intervention are crucial to prevent potential long-term neurological complications associated with prolonged B12 deficiency.