Hello! Lemon vinegar's efficacy can improve the initial symptoms of cold, decompose fat, eliminate stool, whiten skin, and help the kidneys to detoxify. Taboo in lemon vinegar: lemon vinegar is very sour, so it is not advisable to drink too much. Don't take it on an empty stomach, otherwise it will easily hurt your stomach. Don't take it continuously for a long time, otherwise it will hurt liver and kidney. In addition, if you drink it for a long time or in large quantities, it will cause calcium loss in bones and muscle cramps. It is best to drink more milk or supplement calcium.