What is the recommended daily source of vitamin B12 for a vegetarian client?

Vitamin B12 is primarily found in animal products, making it a critical nutrient for vegetarians to consider in their diets. Among the options provided, soy milk often contains added vitamin B12 which makes it a viable source for vegetarians. Many brands fortify soy milk with this essential nutrient to help meet the dietary needs of those who do not consume meat, dairy, or eggs regularly.

In contrast, while tofu is a good source of protein and other nutrients, it typically does not contain substantial amounts of vitamin B12 unless fortified. Similarly, whole grain bread is beneficial for fiber and other micronutrients but is not a direct source of vitamin B12. Eggs do provide vitamin B12, but since the question specifically asks for a recommended daily source suitable for a vegetarian client, fortified soy milk stands out as an especially convenient and effective option. Therefore, incorporating a glass of fortified soy milk into a vegetarian diet can significantly help in achieving the daily recommended intake of vitamin B12.