There are lots of violent foods that we keep on taking, and they are more dangerous than the non-vegetarian foods.

They are:
The food for heart.
The food for mind.

One type of food is emotions and second type of food is thoughts. If they are uncontrolled – vegetarian food also can’t save us; we are bound to get disturbed from tail to head.

They are energies:
Emotions and thoughts are energies and if they are positive, pure and in control – they help substantially in meditation.

But, most of the time, we don’t care about what we are feeling and what we are thinking. Because, we think we are "vegetarian," read scripture and follow a Guru, and everything will be good with us, it can’t! Unless, the emotions and thoughts don’t become proper. Apart from downfall of the character, all the mental and physical diseases happen just due to uncontrolled thoughts and emotions. Avadhoot Baba Shivananda of Shiv Yog says "Emotions of fear affects the lungs and stomach, anger affects the heart and resentment effects the kidneys" – these are just example of few. The real harms uncontrolled thoughts and emotions do is, they never let us improve our conscious level, and we remain kind of animal, whole life.

We can improve both of them if we try to check what we are thinking, feeling, talking, reading and watching. If we keep on checking and rechecking the quality of our life style, we can reach better food to our heart and mind. This not only will help in meditation but will also help to the people around us.