What essential nutrient might be consumed at low levels due to low animal product intake?

The essential nutrient that is often consumed at low levels due to a low intake of animal products is vitamin B12. This vitamin is predominantly found in animal sources such as meat, dairy, and eggs. Individuals who follow vegetarian or vegan diets may not get adequate amounts of vitamin B12 unless they specifically seek fortified foods or take supplements, as B12 is not naturally present in plant-based foods.

While iron, calcium, and zinc are also important nutrients and can be found in both animal and plant sources, vitamin B12's unique status as primarily animal-derived makes it a critical focus for those with limited or no animal product intake. Vegetarians and especially vegans need to be more vigilant about their B12 consumption to prevent deficiencies, which can lead to serious neurological and hematological issues.