Does drinking water infused with Astragalus (Huang Qi) cause heatiness?
Generally, drinking an appropriate amount of Astragalus membranaceus (Huang Qi) infused water will not cause heatiness (excessive internal heat according to traditional Chinese medicine). However, excessive consumption may lead to symptoms of heatiness. The detailed explanation is as follows:

Astragalus is a commonly used medicinal herb for replenishing qi (vital energy). It has a sweet taste and slightly warm nature, and is associated with the spleen and lung meridians. Drinking an appropriate amount of Astragalus-infused water typically does not cause heatiness. Astragalus water can help boost qi and yang energy, strengthen the body's defensive system, reduce perspiration, promote diuresis, and alleviate edema. Moderate consumption can relieve symptoms such as fatigue due to qi deficiency, poor appetite, loose stools, and sinking of middle qi, thus contributing to overall health maintenance.
However, individuals with a naturally hot constitution or internal heat should be cautious. Long-term and excessive consumption of Astragalus water may exacerbate internal heat and lead to symptoms of heatiness such as dry mouth and thirst, sore throat, and constipation. Furthermore, even individuals with suitable constitutions may experience symptoms of heatiness from excessive long-term consumption due to Astragalus' warming and nourishing properties. Therefore, it is recommended to adjust the amount consumed according to one's individual constitution and avoid excessive intake.
When consuming Astragalus water, one should maintain a light diet and avoid overly spicy, greasy, or cold foods, as these may interfere with the herb's effectiveness or increase the likelihood of heatiness.