Protein nor sugar should not be found in the urine of a healthy person.
Healthy urine consists of water, ammonia, potassium, hydrogen, little sodium, little creatine, little uric acid and urea and little bilirubin, if any of these substance is present in too much (or to little) quanity then it becomes unhealthy. Also if glucose and/or RBC are found in urine it is unhealthy.
urea
Urine would be found in the ureter. The ureters are tubes that carry urine from the kidneys to the bladder.
The amount of protein in your urine that is healthy varies from person to person. Some healthy people spill protein in their urine regularly. Talk with your health care provider for advice specific to your situation.
The two main substances found in urine are water and waste products, such as urea, creatinine, and uric acid.
In a healthy person's urine, you would typically find water, urea, creatinine, uric acid, electrolytes (such as sodium, potassium, and chloride), various pigments, and small amounts of proteins. The presence of certain substances or abnormal levels may indicate underlying health issues.
In a healthy person, water, urea, and a small amount of electrolytes like sodium and potassium should be found. What should NOT be found are red or white blood cells, bacteria (yes, urine should be sterile), or nitrites or esterases which indicate an infectious processes.
urea
acetone
The amount of substance that exceeds the tubular maximum will be found in the urine.
Uric acid is a by product of protein digestion and can be found in the urine.