B-12 is used in conjunction with weight loss because of its tendency to increase energy. Healthline Networks describes B-12 this way: "Vitamin B12 also helps the body convert fats and proteins into energy. B12 deficiency can lead to several ailments, most notably megaloblastic anemia, which is caused by a low red blood cell count. The most common symptom of megaloblastic anemia is fatigue."
Suggested use: take 10-15 drops morning and night.