B12 is a vitamin that comes in both pill form and in injection form and is used in a variety of capacities. One of the more recent uses is as an injection to aid with weight loss. The idea is that Vitamin B will enhance the speed of the metabolism and give you an extra boost of energy to assist with the exercise and willpower to lose weight.

Vitamins are generally split between water soluble and fat soluble, with B12 falling into the first category. It is only found from animal sources such as dairy and meat, but is not made by the human body. Generally, only truly strict vegetarians are at risk of not getting a dietary regimen of the vitamin. The body uses B12 to maintain healthy nerve cells and red blood cells, as well as being required to create enough red blood cells in the bone marrow. It also assists with digestion.
B12 begins working by exciting the thyroid. When stimulated, the thyroid releases hormones which create an antsy feeling (a need to move) along with the energy that is needed to make that motion through the release of cobalamin. The theory behind the B12 diet is that the extra energy provided by the shots of the vitamin will stimulate your body and create an enhanced desire to exercise. Dieting also often increases stress and causes fatigue, both of which are combatted by the B12 injections. Along with this, B12 is also said to help dampen food cravings. One other advantage of this injection is that it speeds up the metabolism, which again aids in weight loss.

The injections are given intramuscularly. To treat chronic fatigue syndrome, a dose of 6 to 7 milligrams once a week for three weeks is recommended, but for diet the amount given should be determined by your health care provider. It is rare for the B12 shots to generate serious side effects, though some people have an allergic reaction. This reaction may take the form of a rash or a tightening in the chest. There is also very little risk of overdosing on the vitamin, as a healthy system will simply excrete the excess in the urine. An indication that you may be urinating excess B12 is the darkening of the urine. Additionally, there is no withdrawal symptoms. You may take the shots on your own schedule. The effect that the B12 shot will have on the body is highly dependent upon your personal pre-existing conditions. Because there are always risks associated with any diet, consulting with your doctor prior to beginning a vitamin B12 regimen is recommended.

A vitamin B12 regimen is intended as an aid for losing weight, not a complete solution. The effects of increased energy, metabolism, and combatting common diet problems such as depression and fatigue make it well worth discussing with your health care provider to see if it can be an effective and safe route to take to your weight goals.

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