There is no specific time requirement for taking American ginseng, any time is fine, so there is no optimal time. American ginseng belongs to traditional Chinese medicine, has the effect of tonifying qi and nourishing yin, clearing heat and generating fluids, and is suitable for the symptoms of qi deficiency and yin deficiency, such as internal heat and thirst (internal heat accompanied by eating and drinking and urinating), dry mouth and throat, cough, coughing up blood, etc. It has no special requirements for taking time, so there is no optimal time. There is no special requirement for the time of taking, so there is no best time to say, as long as you choose the right time to take it. There are indications for taking American ginseng, which is not suitable for all people. It should be noted that it should not be used with quinoa, and it is not recommended for people with heavy phlegm-dampness, cough with phlegm or edema. It is recommended to take American ginseng under the guidance of a professional doctor.