Vitamin B12 shots are designed for people who have a deficiency in vitamin B12. According to Dr. Roy Benaroch on KevinMD.com, anemia, poor diet, depression, neuropathy and irritability are all causes of a deficiency in vitamin B12.Know More
According to Dr. Benaroch, a blood test can determine the amount of vitamin B12 in the body; however, the levels in the blood do not always determine if there is sufficient B12 in the actual cells. Other tests that include homocysteine levels and methylmalonic acid help determine how much B12 is in the cells. Once adults experience fatigue, they often assume it is because of a lack of B12, but at times, the fatigue can be a result of too much caffeine, depression or sleep apnea.
Even though vitamin B12 deficiency can be treated by the pill ORAL B12, many people prefer taking an injection instead of a pill. For example, if a person had a serious abdominal surgery, taking an injection is more beneficial. In addition, Dr. Benaroch reports that patients also prefer taking a B12 shot instead of a B12 pill because it seems more effective in general. An injection instantly hits the bloodstream, while a pill takes time to be digested.Learn more about Vitamins & Supplements
Vitamin B-12 injections only increase energy in people who are vitamin B-12-deficient, according to the National Institutes of Health. The vitamin is in most animal-derived foods naturally, and it is added to many nutritionally-fortified foods. Adults need about 2.4 micrograms of vitamin B-12 per day, states WebMD.Full Answer >
The recommended dietary amount of vitamin B-12 for people age 14 and up is 2.4 micrograms per day, according to Mayo Clinic. Pregnant women require 2.6 micrograms of vitamin B-12 daily, while breast-feeding mothers need 2.8 micrograms per day.Full Answer >
There is no substantial evidence that vitamin B-12 injections help with weight loss as of June 2015, according to Mayo Clinic. Doctors typically prescribe injections of vitamin B-12, which occurs naturally in meat, fish, dairy products and other foods, to treat or prevent B-12 deficiency and pernicious anemia.Full Answer >
The two types of vitamin B12 shots are cyanocobalamin and methylcobalamin, according to VitaminInjections.net. Cobalamin is the medical term for vitamin B12, and these two compounds are so similar that only one molecule differentiates them. Although small, the difference can affect the health of the individual taking it.Full Answer >