It's better to eat in the morning.
the best time to take brown sugar is from 9: to 11: in the morning and from 3: to 5: in the afternoon.
From 9: to 11: in the morning, the spleen and stomach are running. Eating brown sugar at this time is very good for your health.
From 3 pm to 5 pm, the human body is very tired. Eating brown sugar at this time can replenish energy and make everyone have a good mental state in the afternoon.
therefore, brown sugar can be eaten in the morning and evening.
Extended information
The eating methods of brown sugar are as follows:
First, if you want to eat brown sugar, you should take about 3 grams a day. If you take too much, it is likely to affect your appetite and gastrointestinal absorption.
Second, you'd better not drink brown sugar and milk together.
Thirdly, it is better to boil brown sugar with boiling water, because during storage, brown sugar may produce bacteria. If it is not boiled with boiling water, a lot of bacteria will be hidden in it, which is not good for everyone's health.
Reference: Baidu Encyclopedia-Brown Sugar (edible time)