Vitamin B strengthens the nervous and the immune system, is a group of high-quality materials, the central processes regulates the metabolism. The body needs it in order to convert proteins can, as it helps with energy - and fat metabolism.
So it makes sense, this powder together, as recommended by the manufacturer, taking mixed with protein powder, especially as it tasted alone mixed with water also as fader wallpaper paste.
Of course, these ingredients may be taken as about the food, but athletes or sick people sometimes have a higher need, then help this powder as a dietary supplement.
This overdosing is impossible, I would ask in doubt, a pharmacist or doctor, there are also information about the recommended minimum amounts on the internet to find, but vary according to age, weight and personal circumstances.
The consistency of the powder is fine, it dissolves without clumping, the value for money is very good compared with currently about 10 euros for 500gr.