Vitamin b12 shots are designed to provide the user with a boost in energy and a prolonged source of energy to use during the day. Why is this because vitamin supplements do not contain energy for the body to use? The fact is that vitamin b12 is a micro nutrient that is used in the process of energy release. Without the presence of vitamin b12 you could not burn calories and your energy would not be released.

Taking vitamin b12 shots can make you more energized if you are not receiving enough b12 in your diet however if you are lacking in carbohydrates or other macro nutrients to be used as fuel then there is little point in supplementing b12 because the fuel is just not there to be released. So it is important to first establish what the cause of the tiredness or fatigue is before paying for costly supplements. If your diet contains a good serving of all the required daily foods then you may not need a vitamin b12 shot at all and the problem of being tired may be caused by another matter.

It has been said that using the b12 shots for the use of losing weight can be effective for many people. This statement has a truth to it though it also is more of a myth. The body is designed to use fuels differently depending on what state of physical activity you are in. by using b12 shots to encourage weight loss through the burning of excess calories you may actually be burning the wrong kinds of fuel such as protein which means your muscles will be reduced. For the best advice on weight loss consult a certified trainer.