Vitamin B complex is an organic substance which is composed of essential B vitamins that your body needs for nutrition and energy.  Vitamins B1, B2, B3, B5, B6, B9, B12, choline and inositol are all components of Vitamin B complex. 

Your body needs plenty of vitamin B complex in order to stay healthy.  Here are the health benefits of vitamin B complex:

1. It helps your body to produce energy

As you eat foods that contain carbohydrates, your body needs to convert it into glucose. Your body needs vitamin B1 to make this possible.  In order to convert glucose into energy, you need Vitamin B2, Vitamin B3, Vitamin B5, Vitamin B6 and Biotin.

If you are deficient in any of these vitamins, your body will not be able to reach the peak of its energy level and you have the tendency to feel fatigue and lethargic.

2. It helps to give you a healthy nervous system

You body needs vitamin B5 in order to make your adrenal glands to be in its normal state.  You also need lots of Vitamin B1, B6 and B12 for the correct functioning of your brain and nervous system.  Sufficient supply of vitamin B9 is also good for pregnant women because it can help to protect babies from neural defects during pregnancy. 

Vitamin B complex also helps to regulate your mood.  It also helps to protect you from stress and getting depressed.

3. It promotes proper digestion

Proper digestion is an essential body function which can be optimized with sufficient supply of vitamin B complex.  The B vitamins which play an active role in this process include vitamins B1, B2, B3 and B6.

4. It helps to give you healthy skin, hair and nails

Your body needs lots of vitamin B complex in order to grow new skin, hair and nails which die as part of your body's normal process.  If your body has sufficient supply of vitamin B complex, you can be assured of protection from dermatitis, falling hair and splitting nails.

5. Synergy

B vitamins need to be complete when taken because the absence of one or two of these can lead the others to lose their potent effect.  In order to ensure that you have a complete set of B vitamins in your body, you should take vitamin B complex.

 
You don't have to be concerned if you might have taken B vitamins in excess because these are water soluble and can be easily excreted through urine.