The efficacy of brown sugar is as follows: 1, tonic and slow: because from the perspective of Chinese medicine, brown sugar is warm, sweet, into the spleen, stomach meridian, for the spleen and stomach weakness caused by nausea, vomiting, abdominal pain, bloating, loss of appetite, appropriate consumption of brown sugar has tonic and slow pain, improve digestion; 2, and blood and blood stasis: postpartum dew, dysmenorrhea, appropriate consumption of brown sugar has the effect of blood circulation. The contraindication of brown sugar is that diabetic patients should not eat too much, otherwise it will cause an increase in blood sugar and aggravate the condition of diabetes.