Nerve Nutrient Kali Phos is found in the tissues and fluids of the body, most notably of the brain and nerve cells, and is the principal tissue salt for the nervous system. Kali Phos is vital for regeneration of nerve tissue and forms “Grey matter” within the brain. Kali Phos may be of benefit for nervous headaches, nervous dyspepsia, sleeplessness, weariness, lowered vitality, low mood and other similar conditions. It is indicated in occurrences of shingles, to support underlying nerve related conditions. It may also be helpful for the relief of nervous asthma in conjunction with Mag Phos.