A urine pH of 6 means that this is normal urine and is acidic urine. The normal value of urine pH is between 4.5 and 7.9. The pH of urine can reflect the acid-base balance of the body, and as long as the pH of urine is normal, it means that the body also maintains in a normal acid-base balance. Normal fresh urine is weakly acidic, so urine pH is 6 is the normal value. People who generally like to eat high-protein, high-fat and high-calorie foods tend to produce acidic urine. People who consume more alkaline or fresh vegetables and fruits generally have alkaline urine. A urine pH of 6 means that it may be normal to have a urine pH of 6 when you may usually eat mainly animal foods, such as chicken, duck, fish or meat, or just after a lot of strenuous exercise or when you are hungry.