Only you know if you need minerals during your fast.
Your body will tell you if your levels of minerals are too low.
Look for classic symptoms of mineral and electrolytes deficiency, like irregular heartbeat, muscle spasms, vomiting after drinking water, feeling very thirsty most of the time.
Beware, taking too much of any minerals may cause some other problems, like deficiency of the opposite mineral.
Sodium and Potassium are opposites.
Taking too much Sodium without taking Potassium may cause symptoms of Potassium deficiency, and vice versa.
fatigue or low energy
muscle cramps or spasms
Beware, that long term Water Fasting may give natural weakness, fatigue and low energy in general, even if your sodium levels are ok.
Potassium ( the best source: fruits and vegetables )
Low potassium symptoms
Symptoms of low potassium are usually mild. At times the effects of low potassium can be vague. There may be more than one symptom involving the gastrointestinal (GI) tract, kidneys, muscles, heart, and nerves.
Weakness, tiredness, and cramping in arm or leg muscles, sometimes severe enough to cause inability to move arms or legs due to weakness (much like a paralysis)
Tingling or numbness
Nausea or vomiting
Abdominal cramping, bloating
Palpitations (feeling your heart beat irregularly)
Passing large amounts of urine or feeling very thirsty most of the time
Fainting due to low blood pressure
Abnormal psychological behaviour - depression, psychosis, delirium, confusion, or hallucinations.
Magnesium ( mineral water , it is also a natural part of unrefined Sea Salt , Epsom Salt bath , bathing in magnesium chloride )
The classic physical signs of low magnesium are:
Irritability and anxiety
Impaired memory and cognitive function
Anorexia or loss of appetite
Nausea and vomiting
Irregular or rapid heartbeat
Severe symptoms of hypocalcemia include:
confusion or memory loss.
numbness and tingling in the hands, feet, and face.
weak and brittle nails.
easy fracturing of the bones.