Acid and base balance is very important to our body, because acidity can stimulate disease development. A healthy person with a varied diet has urine pH that is slightly acidic or neutral (pH 4.5-7.8). If a person consumes a lot of meat, their urine may acidify, and if a person eats a lot of plant-based food and dairy, it may become more alkaline. If urine pH is very acidic, we may suspect that the person is fasting and/or has diabetes, chronic kidney disease, or fever. If urine pH is alkaline, it could be assumed that the person is taking certain medication and/or has been vomiting, has diarrhoea. Urine pH is alkaline in pregnant women, patients with bladder inflammation and when urine has been held in for a long time.