Consult with a healthcare professional if your sweat routinely smells like vinegar or otherwise unusual. It could be a sign of hyperhidrosis, unmanaged diabetes, or kidney disease. Sweating ...

A person’s sweat may smell like ammonia due to a high protein diet, exercise, or health conditions such as kidney disease and diabetes. The purpose of sweat is to help the body cool down.

Even if you regularly clean your bed sheets, the build-up of sweat, body oils ... can also contribute to any smells as their droppings release a faint ammonia-like odor, which can be noticeable ...