It is suggested that you can drink a cup on an empty stomach in the morning, and the amount of one cup a day is ok. Every morning, make a cup with boiling water, and then have breakfast, which helps to absorb the nutrients inside.
Drinking brown sugar is good, but drinking it every day is definitely not good. Eating too much of anything will also have a bad effect. If you eat too much brown sugar, you may get diabetes. People with yin deficiency and internal heat should not eat more brown sugar. Obesity and various eye diseases patients should not eat more.