Vitamin B12 also plays an essential role in red blood cell formation and normal nervous system function. Foods from animal sources, including poultry, can contribute to vitamin B12 intake.
Nevertheless, nutritional deficiencies cannot be diagnosed by symptoms alone. Fatigue, dizziness, and weakness have many possible causes. Anyone experiencing persistent symptoms should consult a healthcare professional rather than assuming that eating more organ meat will solve the problem.
Chicken gizzards contain useful nutrients, but their composition varies with preparation and serving size. They should not be regarded as a substitute for medical treatment when a deficiency has already been diagnosed.
Chapter 3: Can Eating Gizzards Replace Supplements?
The idea that one food can eliminate the need for supplements is appealing, but it oversimplifies nutrition.
For someone who obtains enough iron and vitamin B12 from food, eating chicken gizzards may help support normal nutrient intake. However, people with diagnosed deficiencies, certain digestive disorders, increased nutritional requirements, or other medical conditions may need specific treatment.
Iron supplements, for example, should not be taken routinely without a clear reason because excessive iron can be harmful. Similarly, vitamin B12 supplementation may be necessary for some people who cannot absorb enough of the vitamin from food.