What is the relationship between the appearance of ketones in urine and carbohydrate metabolism?

Question

Biology question

Answer 1

A low-carb diet leads to abnormal levels of ketones in urine, a disease known as ketosis. Ketosis may lead to kidney stones.

When there aren't enough Carbs in the body, Ketones are more present. The person must intake carbs to lower the ketone level.

Look up Atkins diet for more info

Answer 2

acetyl coA is basically the precursor of ketone bodies which are formed in the liver. now acetyl coA is formed due to degradation of fatty acids. acetyl coA is also a substrate of the TCA cycle which is pathway in the carbohtdrate metabolism. now when there is excessive degradation of fats as in prolonged starvation and diabetes mellitus there is increased formation of acetyl coA all of which cannot be channeled into the TCA cycle and hence forms ketone bodies ie acetoacetate and butyrate and acetone in the liver which causes ketoacidosis(increased ketone bodies in blood, ketone bodies are acidic) and also ketonuria ie ketone bodies in the urine.