Vitamins are micronutrients that are essential to many body processes.

Vitamin products exist on a spectrum.  On one side, there are products that contain isolates, or individual vitamins like Vitamin B6, Vitamin C, etc alone or in combination.

On the other hand, there are whole food products, which contain the vitamin themselves and almost all of the other micronutrients found in foods.  Unfortunately, there are few companies who make true whole food formulations.

There are many times where a vitamin isolate makes sense, and there are others where a whole food product is ideal.