Which of the following statements about vitamin B12 deficiency anemia is NOT true?

Vitamin B12 deficiency anemia is a complex condition that can manifest in various ways, and the assertion that symptoms are limited to fatigue is not accurate. While fatigue is indeed a common symptom, it is only one of many potential indicators of this deficiency. Other symptoms can include weakness, pale skin, shortness of breath, and more notably, neurological symptoms such as tingling, numbness, or problems with balance and coordination. This neurological involvement is tied to vitamin B12's role in nerve health and function.

In this context, dietary deficiencies aren't common in individuals with a varied diet, particularly those not adhering to strict vegetarian or vegan diets, as vitamin B12 is found primarily in animal products. The vitamin is indeed bound to intrinsic factor, a protein produced in the stomach, which is essential for its absorption in the intestine. Therefore, the statement regarding limitations of symptoms strictly to fatigue does not encompass the spectrum of clinical manifestations that may arise due to vitamin B12 deficiency.