Which client history contributes as a risk factor for Vitamin B12 deficiency?

A strict vegan diet is a significant risk factor for Vitamin B12 deficiency because this vitamin is predominantly found in animal products. Foods like meat, fish, eggs, and dairy are the primary natural sources of Vitamin B12. When individuals follow a strictly vegan diet and eliminate all animal products, they may not get enough Vitamin B12, leading to a deficiency over time.

In contrast, regular consumption of dairy products and high intake of fruits are less associated with deficiency since dairy products are a good source of Vitamin B12. Additionally, fruits do not contain Vitamin B12, but their consumption does not negatively impact its levels when combined with other B12-containing foods. Low caffeine consumption does not directly correlate with Vitamin B12 levels, and the nutrient needs remain paramount regardless of caffeine intake. Therefore, the strict vegan diet stands out as a prominent risk factor for Vitamin B12 deficiency.