Can Lycium barbarum (goji berries) be steeped in water and consumed regularly over a long period?
Generally speaking, goji berries can be steeped in water and consumed long-term, but in moderation. Detailed analysis is as follows:

Goji berries have the functions of nourishing the liver and kidneys, improving vision, and moistening the lungs. Drinking goji berry-infused water over a long period in appropriate amounts can help improve conditions such as liver and kidney deficiency, blurred vision, or physical weakness. Its nature is mild and balanced, making it suitable for most people to use for daily health maintenance, especially during autumn and winter seasons or in dry environments.
Long-term excessive consumption of goji berry water may cause physical discomfort. For individuals with a warm body constitution or those experiencing yin deficiency with internal heat, excessive intake may lead to symptoms such as dry mouth and throat or heatiness (fire-heat symptoms). Additionally, individuals with weak spleen and stomach or poor digestive function should control their intake to avoid affecting digestive function.
Patients with hypertension who are currently taking antihypertensive medication should be cautious, as goji berries may have certain effects on blood pressure. Meanwhile, individuals with allergic constitutions who are allergic to goji berries should avoid consumption.