When is the best time to drink coffee?
Generally speaking, there is no best time to drink coffee. It is more appropriate to drink coffee half an hour to one hour after breakfast and half an hour after lunch. The detailed explanation is as follows:

Drinking coffee half an hour to one hour after breakfast is relatively better. After a night's rest, the body's cortisol levels naturally rise in the morning, and caffeine can further stimulate cortisol secretion. Drinking coffee after breakfast allows the body to utilize nutrients from food to buffer some potential adverse effects of caffeine, such as palpitations, since the body has already started digesting food at this time. Meanwhile, caffeine in coffee can stimulate the central nervous system, helping people stay alert and enhancing their ability to work and study.
Drinking coffee half an hour after lunch is also a good choice. People often feel drowsy after lunch because blood flow concentrates in the gastrointestinal tract for digestion, reducing blood supply to the brain. Additionally, increased insulin secretion after a rise in blood sugar allows tryptophan to enter the brain and synthesize melatonin, which has a sleep-inducing effect. Drinking a cup of coffee at this time can help promote fat breakdown and digestion, and counteract feelings of fatigue through the effects of caffeine.
It is important to drink coffee in moderation during daily life. Excessive coffee consumption may lead to adverse reactions such as increased heart rate, elevated blood pressure, and anxiety.